PR-DOM-Level-1-19980818 Document Object Model (DOM) Level 1 Specification Version 1.0 W3C Proposed Recommendation 18 August, 1998 This version http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818 http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/DOM.ps http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/DOM.tgz http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/DOM.zip http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/DOM.txt Latest version http://www.w3.org/TR/PR-DOM-Level-1 Previous versions http://www.w3.org/TR/1998/WD-DOM-19980720 http://www.w3.org/TR/1998/WD-DOM-19980416 http://www.w3.org/TR/WD-DOM-19980318 http://www.w3.org/TR/WD-DOM-971209 http://www.w3.org/TR/WD-DOM-971009 WG Chair Lauren Wood, SoftQuad, Inc. Editors Vidur Apparao, Netscape Steve Byrne, Sun Mike Champion, ArborText Scott Isaacs, Microsoft Gavin Nicol, Inso EPS Jonathan Robie, Texcel Research Robert Sutor, IBM Chris Wilson, Microsoft Lauren Wood, SoftQuad, Inc. Principal Contributors Vidur Apparao, Netscape Steve Byrne, Sun (until November 1997) Mike Champion, ArborText, Inc. Scott Isaacs, Microsoft (until January, 1998) Arnaud Le Hors, W3C Gavin Nicol, Inso EPS Jonathan Robie, Texcel Research Peter Sharpe, SoftQuad, Inc. Bill Smith, Sun (after November 1997) Jared Sorensen, Novell Robert Sutor, IBM Ray Whitmer, iMall Chris Wilson, Microsoft (after January, 1998) Status of this document This document is currently undergoing review by the members of the World Wide Web Consortium. It is a stable document derived from a series of working drafts produced over the last year as deliverables of the W3C DOM Activity. Details of this review have been distributed to the Member's representatives. The review period will end on 15 September, 1998 at 24:00 GMT. Within 14 days from that time, the document's disposition will be announced: it may become a W3C Recommendation (possibly with minor changes), or it may revert to Working Draft status, or it may be dropped as a W3C work item. As a Proposed Recommendation, this document does not imply any endorsement by the Consortium's staff or Member organizations. Comments on this document by non-Members should be sent to www-dom@w3.org. We cannot guarantee a personal response but we will try when it is appropriate. The authors of this document are the DOM WG members, different chapters may have different editors. Abstract This specification defines the Document Object Model Level 1, a platform- and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure and style of documents. The Document Object Model provides a standard set of objects for representing HTML and XML documents, a standard model of how these objects can be combined, and a standard interface for accessing and manipulating them. Vendors can support the DOM as an interface to their proprietary data structures and APIs, and content authors can write to the standard DOM interfaces rather than product-specific APIs, thus increasing interoperability on the Web. The goal of the DOM specification is to define a programmatic interface for XML and HTML. The DOM Level 1 specification is separated into two parts: Core and HTML. The Core DOM Level 1 section provides a low-level set of fundamental interfaces that can represent any structured document, as well as defining extended interfaces for representing an XML document. These extended XML interfaces need not be implemented by a DOM implementation that only provides access to HTML documents; all of the fundamental interfaces in the Core section must be implemented. A compliant DOM implementation that implements the extended XML interfaces is required to also implement the fundamental Core interfaces, but not the HTML interfaces. The HTML Level 1 section provides additional, higher-level interfaces that are used with the fundamental interfaces defined in the Core Level 1 section to provide a more convenient view of an HTML document. A compliant implementation of the HTML DOM implements all of the fundamental Core interfaces as well as the HTML interfaces. Table of contents * Expanded Table of Contents * Copyright Notice * What is the Document Object Model? * Chapter 1: Document Object Model (Core) Level 1 * Chapter 2: Document Object Model (HTML) Level 1 * Appendix A: Contributors * Appendix B: Glossary * Appendix C: IDL Definitions * Appendix D: Java Language Binding * Appendix E: ECMA Script Language Binding * Index * Production Notes Expanded Table of Contents * Expanded Table of Contents * Copyright Notice * What is the Document Object Model? o Introduction o What the Document Object Model is o What the Document Object Model is not o Where the Document Object Model came from o Entities and the DOM Core o DOM Interfaces and DOM Implementations o Limitations of Level One * Chapter 1: Document Object Model (Core) Level 1 o 1.1. Overview of the DOM Core Interfaces + 1.1.1. The DOM Structure Model + 1.1.2. Memory Management + 1.1.3. Naming Conventions + 1.1.4. Inheritance vs Flattened Views of the API + 1.1.5. The wstring type + 1.1.6. Case sensitivity in the DOM o 1.2. Fundamental Interfaces o 1.3. Extended Interfaces * Chapter 2: Document Object Model (HTML) Level 1 o 2.1. Introduction o 2.2. HTML Application of Core DOM + 2.2.1. Naming Conventions o 2.3. Miscellaneous Object Definitions o 2.4. Objects related to HTML documents o 2.5. HTML Elements + 2.5.1. Property Attributes + 2.5.2. Naming Exceptions + 2.5.3. Exposing Element Type Names (tagName) + 2.5.4. The HTMLElement interface + 2.5.5. Object definitions * Appendix A: Contributors * Appendix B: Glossary * Appendix C: IDL Definitions o C.1. Document Object Model Level 1 Core o C.2. Document Object Model Level 1 HTML * Appendix D: Java Language Binding o D.1. Document Object Model Level 1 Core o D.2. Document Object Model Level 1 HTML * Appendix E: ECMA Script Language Binding o E.1. Document Object Model Level 1 Core o E.2. Document Object Model Level 1 HTML * Index * Production Notes o 1. The Document Type Definition o 2. The production process o 3. Object Definitions Copyright Notice Copyright © 1998 World Wide Web Consortium , (Massachusetts Institute of Technology , Institut National de Recherche en Informatique et en Automatique , Keio University ). All Rights Reserved. Documents on the W3C site are provided by the copyright holders under the following license. By obtaining, using and/or copying this document, or the W3C document from which this statement is linked, you agree that you have read, understood, and will comply with the following terms and conditions: Permission to use, copy, and distribute the contents of this document, or the W3C document from which this statement is linked, in any medium for any purpose and without fee or royalty is hereby granted, provided that you include the following on ALL copies of the document, or portions thereof, that you use: 1. A link or URI to the original W3C document. 2. The pre-existing copyright notice of the original author, if it doesn't exist, a notice of the form: "Copyright © World Wide Web Consortium , (Massachusetts Institute of Technology , Institut National de Recherche en Informatique et en Automatique , Keio University ). All Rights Reserved." 3. If it exists, the STATUS of the W3C document. When space permits, inclusion of the full text of this NOTICE should be provided. In addition, credit shall be attributed to the copyright holders for any software, documents, or other items or products that you create pursuant to the implementation of the contents of this document, or any portion thereof. No right to create modifications or derivatives is granted pursuant to this license. THIS DOCUMENT IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR TITLE; THAT THE CONTENTS OF THE DOCUMENT ARE SUITABLE FOR ANY PURPOSE; NOR THAT THE IMPLEMENTATION OF SUCH CONTENTS WILL NOT INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS. COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE DOCUMENT OR THE PERFORMANCE OR IMPLEMENTATION OF THE CONTENTS THEREOF. The name and trademarks of copyright holders may NOT be used in advertising or publicity pertaining to this document or its contents without specific, written prior permission. Title to copyright in this document will at all times remain with copyright holders. What is the Document Object Model? Editors Jonathan Robie, Texcel Research Introduction The Document Object Model (DOM) is an application programming interface (API) for HTML and XML documents. It defines the logical structure of documents and the way a document is accessed and manipulated. In the DOM specification, the term "document" is used in the broad sense - increasingly, XML is being used as a way of representing many different kinds of information that may be stored in diverse systems, and much of this would traditionally be seen as data rather than as documents. Nevertheless, XML presents this data as documents, and the DOM may be used to manage this data. With the Document Object Model, programmers can build documents, navigate their structure, and add, modify, or delete elements and content. Anything found in an HTML or XML document can be accessed, changed, deleted, or added using the Document Object Model, with a few exceptions - in particular, the DOM interfaces for the XML internal and external subsets have not yet been specified. As a W3C specification, one important objective for the Document Object Model is to provide a standard programming interface that can be used in a wide variety of environments and applications. The DOM is designed to be used with any programming language. In order to provide a precise, language-independent specification of the DOM interfaces, we have chosen to define the specifications in OMG IDL, as defined in the CORBA 2.2 specification. In addition to the OMG IDL specification, we provide language bindings for Java and ECMAScript (an industry-standard scripting language based on JavaScript and JScript). Note: OMG IDL is used only as a language-independent and implementation-neutral way to specify interfaces. Various other IDLs could have been used.. In general, IDLs are designed for specific computing environments. The Document Object Model can be implemented in any computing environment, and does not require the object binding runtimes generally associated with such IDLs. What the Document Object Model is The DOM is a programming API for documents. It closely resembles the structure of the documents it models. For instance, consider this table, taken from an HTML document:
Shady Grove Aeolian
Over the River, Charlie Dorian
The DOM represents this table like this: --------------------------------------------------------------------- [DOM representation of the example table] --------------------------------------------------------------------- DOM representation of the example table --------------------------------------------------------------------- In the DOM, documents have a logical structure which is very much like a tree; to be more precise, it is like a "forest" or "grove", which can contain more than one tree. However, the DOM does not specify that documents must be implemented as a tree or a grove , nor does it specify how the relationships among objects be implemented. the DOM is a logical model that may be implemented in any convenient manner. In this specification, we use the term structure model to describe the tree-like representation of a document; we specifically avoid terms like "tree" or "grove" in order to avoid implying a particular implementation. One important property of DOM structure models is structural isomorphism: if any two Document Object Model implementations are used to create a representation of the same document, they will create the same structure model, with precisely the same objects and relationships. The name "Document Object Model" was chosen because it is an "object model" in the traditional object oriented design sense: documents are modeled using objects, and the model encompasses not only the structure of a document, but also the behavior of a document and the objects of which it is composed. In other words, the nodes in the above diagram do not represent a data structure, they represent objects, which have functions and identity. As an object model, the DOM identifies: * the interfaces and objects used to represent and manipulate a document * the semantics of these interfaces and objects - including both behavior and attributes * the relationships and collaborations among these interfaces and objects The structure of SGML documents has traditionally been represented by an abstract data model, not by an object model. In an abstract data model, the model is centered around the data. In object oriented programming languages, the data itself is encapsulated in objects that hide the data, protecting it from direct external manipulation. The functions associated with these objects determine how the objects may be manipulated, and they are part of the object model. The Document Object Model currently consists of two parts, DOM Core and DOM HTML. The DOM Core represents the functionality used for XML documents, and also serves as the basis for DOM HTML. A compliant implementation of the DOM must implement all of the fundamental interfaces in the Core chapter with the semantics as defined. Further, it must implement at least one of the HTML DOM and the extended (XML) interfaces with the semantics as defined. What the Document Object Model is not This section is designed to give a more precise understanding of the DOM by distinguishing it from other systems that may seem to be like it. * Although the Document Object Model was strongly influenced by "Dynamic HTML", in Level 1, it does not implement all of "Dynamic HTML". In particular, events have not yet been defined. Level 1 is designed to lay a firm foundation for this kind of functionality by providing a robust, flexible model of the document itself. * The Document Object Model is not a binary specification. DOM programs written in the same language will be source code compatible across platforms, but the DOM does not define any form of binary interoperability. * The Document Object Model is not a way of persisting objects to XML or HTML. Instead of specifying how objects may be represented in XML, the DOM specifies how XML and HTML documents are represented as objects, so that they may be used in object oriented programs. * The Document Object Model is not a set of data structures, it is an object model that specifies interfaces. Although this document contains diagrams showing parent/child relationships, these are logical relationships defined by the programming interfaces, not representations of any particular internal data structures. * The Document Object Model does not define "the true inner semantics" of XML or HTML. The semantics of those languages are defined by W3C Recommendations for these languages. The DOM is a programming model designed to respect these semantics. The DOM does not have any ramifications for the way you write XML and HTML documents; any document that can be written in these languages can be represented in the DOM. * The Document Object Model, despite its name, is not a competitor to the Component Object Model (COM). COM, like CORBA, is a language independent way to specify interfaces and objects; the DOM is a set of interfaces and objects designed for managing HTML and XML documents. The DOM may be implemented using language-independent systems like COM or CORBA; it may also be implemented using language-specific bindings like the Java or ECMAScript bindings specified in this document. Where the Document Object Model came from The DOM originated as a specification to allow JavaScript scripts and Java programs to be portable among Web browsers. "Dynamic HTML" was the immediate ancestor of the Document Object Model, and it was originally thought of largely in terms of browsers. However, when the DOM Working Group was formed at W3C, it was also joined by vendors in other domains, including HTML or XML editors and document repositories. Several of these vendors had worked with SGML before XML was developed; as a result, the DOM has been influenced by SGML Groves and the HyTime standard. Some of these vendors had also developed their own object models for documents in order to provide an APIs for SGML/XML editors or document repositories, and these object models have also influenced the DOM. Entities and the DOM Core In the fundamental DOM interfaces, there are no objects representing entities. Numeric character references, and references to the pre-defined entities in HTML and XML, are replaced by the single character that makes up the entity's replacement. For example, in:

This is a dog & a cat

the "&" will be replaced by the character "&", and the text in the

element will form a single continuous sequence of characters. The representation of general entities, both internal and external, are defined within the extended (XML) interfaces of the Level 1 specification. Note: When a DOM representation of a document is serialized as XML or HTML text, applications will need to check each character in text data to see if it needs to be escaped using a numeric or pre-defined entity. Failing to do so could result in invalid HTML or XML. DOM Interfaces and DOM Implementations The DOM specifies interfaces which may be used to manage XML or HTML documents. It is important to realize that these interfaces are an abstraction - much like "abstract base classes" in C++, they are a means of specifying a way to access and manipulate an application's internal representation of a document. Interfaces do not imply a particular concrete implementation. Each DOM application is free to maintain documents in any convenient representation, as long as the interfaces shown in this specification are supported. Some DOM implementations will be existing programs that use the DOM interfaces to access software written long before the DOM specification existed. Therefore, the DOM is designed to avoid implementation dependencies; in particular, 1. Attributes defined in the IDL do not imply concrete objects which must have specific data members - in the language bindings, they are translated to a pair of get()/set() functions, not to a data member. (Read-only functions have only a get() function in the language bindings). 2. DOM applications may provide additional interfaces and objects not found in this specification and still be considered DOM compliant. 3. Because we specify interfaces and not the actual objects that are to be created, the DOM can not know what constructors to call for an implementation. In general, DOM users call the createXXX() methods on the Document class to create document structures, and DOM implementations create their own internal representations of these structures in their implementations of the createXXX() functions. Limitations of Level One The DOM Level 1 specification is intentionally limited to those methods needed to represent and manipulate document structure and content. The plan is for future Levels of the DOM specification to provide: 1. A structure model for the internal subset and the external subset. 2. Validation against a schema. 3. Control for rendering documents via style sheets. 4. Access control. 5. Thread-safety. 6. Events. 1. Document Object Model (Core) Level 1 Editors Mike Champion, ArborText (from November 20, 1997) Steve Byrne, JavaSoft (until November 19, 1997) Gavin Nicol, Inso EPS Lauren Wood, SoftQuad, Inc. 1.1. Overview of the DOM Core Interfaces This section defines a minimal set of objects and interfaces for accessing and manipulating document objects. The functionality specified in this section (the Core functionality) should be sufficient to allow software developers and web script authors to access and manipulate parsed HTML and XML content inside conforming products. The DOM Core API also allows population of a Document object using only DOM API calls; creating the skeleton Document and saving it persistently is left to the product that implements the DOM API. 1.1.1. The DOM Structure Model The DOM presents documents as a hierarchy of "Node" objects that also implement other, more specialized interfaces. Some types of nodes may have child nodes of various types, and others are leaf nodes that cannot have anything below them in the document structure. The node types, and which node types they may have as children, are as follows: * Document -- Element (maximum of one), ProcessingInstruction, Comment, DocumentType * DocumentFragment -- Element, ProcessingInstruction, Comment, Text, CDATASection, EntityReference * DocumentType -- Notation, Entity * EntityReference -- Element, ProcessingInstruction, Comment, Text, CDATASection, EntityReference * Element -- Element, Text, Comment, ProcessingInstruction, CDATASection, EntityReference * Attribute -- Text, EntityReference * ProcessingInstruction -- no other nodes * Comment -- no other nodes * Text -- no other nodes * CDATASection -- no other nodes * Entity -- no other nodes * Notation -- no other nodes The DOM also specifies a "NodeList" interface to handle ordered lists of Nodes, such as the children of a Node, or the elements returned by the Element:getElementsByTagName method, and also a NamedNodeMap interface to handle unordered sets of Nodes referenced by their name attribute, such as the Attributes of an Element. NodeLists and NamedNodeMaps in the DOM are "live", that is, changes to the underlying document structure are reflected in all relevant NodeLists and NamedNodeMaps. For example, if a DOM user gets a NodeList object containing the children of an Element, then subsequently adds more children to that element (or removes children, or modifies them), those changes are automatically reflected in the NodeList without further action on the user's part. Likewise changes to a Node in the tree are reflected in all references to that Node in NodeLists and NamedNodeMaps. 1.1.2. Memory Management Most of the APIs defined by this specification are interfaces rather than classes. That means that an actual implementation need only expose methods with the defined names and specified operation, not actually implement classes that correspond directly to the interfaces. This allows the DOM APIs to be implemented as a thin veneer on top of legacy applications with their own data structures, or on top of newer applications with different class hierarchies. This also means that ordinary constructors (in the Java or C++ sense) cannot be used to create DOM objects, since the underlying objects to be constructed may have little relationship to the DOM interfaces. The conventional solution to this in object-oriented design is to define factory methods that create instances of objects that implement the various interfaces. In the DOM Level 1, objects implementing some interface "X" are created by a "createX()" method on the Document interface; this is because all DOM objects live in the context of a specific Document. The DOM Level 1 API does not define a standard way to create DOMImplementation or Document objects; actual DOM implementations must provide some proprietary way of bootstrapping these DOM interfaces, and then all other objects can be built from the Create methods on Document (or by various other convenience methods). The Core DOM APIs are designed to be compatible with a wide range of languages, including both general-user scripting languages and the more challenging languages used mostly by professional programmers. Thus, the DOM APIs need to operate across a variety of memory management philosophies, from language platforms do not expose memory management to the user at all, through those (notably Java) that provide explicit constructors but provide an automatic garbage collection mechanism to automatically reclaim unused memory, to those (especially C/C++) that generally require the programmer to explicitly allocate object memory, track where it is used, and explicitly free it for re-use. To ensure a consistent API across these platforms, the DOM does not address memory management issues at all, but instead leaves these for the implementation. Neither of the explicit language bindings devised by the DOM Working Group (for ECMAScript and Java) require any memory management methods, but DOM bindings for other languages (especially C or C++) probably will require such support. These extensions will be the responsibility of those adapting the DOM API to a specific language, not the DOM WG. 1.1.3. Naming Conventions While it would be nice to have attribute and method names that are short, informative, internally consistent, and familiar to users of similar APIs, the names also should not clash with the names in legacy APIs supported by DOM implementations. Furthermore, both OMG IDL and ECMAScript have significant limitations in their ability to disambiguate names from different namespaces that makes it difficult to avoid naming conflicts with short, familiar names. So, DOM names tend to be long and quite descriptive in order to be unique across all environments. The Working Group has also attempted to be internally consistent in its use of various terms, even though these may not be common distinctions in other APIs. For example, we use the method name "remove" when the method changes the structural model, and the method name "delete" when the method gets rid of something inside the structure model. The thing that is deleted is not returned. The thing that is removed may be returned, when it makes sense to return it. 1.1.4. Inheritance vs Flattened Views of the API The DOM Core APIs present two somewhat different sets of interfaces to an XML/HTML document; one presenting an "object oriented" approach with a hierarchy of inheritance, and a "simplified" view that allows all manipulation to be done via the Node interface without requiring casts (in Java and other C-like languages) or query interface calls in COM environments. These operations are fairly expensive in Java and COM, and the DOM may be used in performance-critical environments, so we allow significant functionality using just the Node interface. Because many other users will find the inheritance hierarchy easier to understand than the "everything is a Node" approach to the DOM, we also support the full higher-level interfaces for those who prefer a more object-oriented API. In practice, this means that there is a certain amount of redundancy in the API. The Working Group considers the "inheritance" approach the primary view of the API, and the full set of functionality on Node to be "extra" functionality that users may employ, but that does not eliminate the need for methods on other interfaces that an object-oriented analysis would dictate. (Of course, when the O-O analysis yields an attribute or method that is identical to one on the Node interface, we don't specify a completely redundant one). Thus, even though there is a generic nodeName attribute on the Node interface, there is still a tagName attribute on the Element interface; these two attributes must contain the same value, but the Working Group considers it worthwhile to support both, given the different constituencies the DOM API must satisfy. 1.1.5. The wstring type To ensure interoperability, the DOM specifies the wstring type as follows: * A wstring is a sequence of 16-bit quantities. This may be expressed in IDL terms as: typedef sequence wstring; * Applications must encode wstring using UTF-16 (defined in Appendix C.3 of [UNICODE] and Amendment 1 of [ISO-10646]).The UTF-16 encoding was choosen because of its widespread industry practice. Please note that for both HTML and XML, the document character set (and therefore the notation of numeric character references) is based on UCS-4. A single numeric character reference in a source document may therefore in some cases correspond to two array positions in a wstring (a high surrogate and a low surrogate). Note: Even though the DOM defines the name of the string type to be wstring, bindings may used different names. For, example for Java, wstring is bound to the String type because it also uses UTF-16 as its encoding. Note: As of August 1998, the OMG IDL specification included a wstring type. However, that definition did not meet the interoperability criteria of the DOM API since it relied on encoding negotiation to decide the width of a character. 1.1.6. Case sensitivity in the DOM The DOM has many interfaces that imply string matching. HTML processors generally assume an uppercase (less often, lowercase) normalization of names for such things as elements, while XML is explicitly case sensitive. For the purposes of the DOM, string matching takes place on a character code by character code basis, on the 16 bit value of a wstring. As such, the DOM assumes that any normalizations will take place in the processor, before the DOM structures are built. This then raises the issue of exactly what normalizations occur. The W3C I18N working group is in the process of defining exactly which normalizations are necessary for applications implementing the DOM. 1.2. Fundamental Interfaces The interfaces within this section are considered fundamental, and must be fully implemented by all conformant implementations of the DOM, including all HTML DOM implementations. Enumeration ExceptionCode An integer indicating the type of error generated. Enumerator Values If index or size is negative, INDEX_SIZE_ERR or greater than the allowed value If the specified range of WSTRING_SIZE_ERR text does not fit into a wstring HIERARCHY_REQUEST_ERR If any node is inserted somewhere it doesn't belong If a node is used in a WRONG_DOCUMENT_ERR different document than the one that created it (that doesn't support it) INVALID_NAME_ERR If an invalid name is specified If data is specified for a NO_DATA_ALLOWED_ERR node which does not support data If an attempt is made to NO_MODIFICATION_ALLOWED_ERR modify an object where modifications are not allowed If an attempt was made to NOT_FOUND_ERR reference a node in a context where it does not exist If the implementation does NOT_SUPPORTED_ERR not support the type of object requested If an attempt is made to add INUSE_ATTRIBUTE_ERR an attribute that is already inuse elsewhere Exception DOMException DOM operations only raise exceptions in "exceptional" circumstances, i.e., when an operation is impossible to perform (either for logical reasons, because data is lost, or because the implementation has become unstable). In general, DOM methods return specific error values in ordinary processing situation, such as out-of-bound errors when using NodeList. Implementations may raise other exceptions under other circumstances. For example, implementations may raise an implementation-dependent exception if a null argument is passed. Some languages and object systems do not support the concept of exceptions. For such systems, error conditions may be indicated using native error reporting mechanisms. For some bindings, for example, methods may return error codes similar to those listed in the corresponding method descriptions. IDL Definition exception DOMException { ExceptionCode code; }; Interface DOMImplementation The DOMImplementation interface provides a number of methods for performing operations that are independent of any particular instance of the document object model. The DOM Level 1 does not specify a way of creating a document instance, and hence document creation is an operation specific to an implementation. Future Levels of the DOM specification are expected to provide methods for creating documents directly. IDL Definition interface DOMImplementation { boolean hasFeature(in wstring feature, in wstring version); }; Methods hasFeature Test if the DOM implementation implements a specific feature. Parameters feature The package name of the feature to test. In Level 1, the legal values are "HTML" and "XML" (case-insensitive). version This is the version number of the package name to test. In Level 1, this is the string "1.0" If the version is not specified, supporting any version of the feature will cause the method to return true. Return Values true if the feature is implemented in the specified version, false otherwise. This method raises no exceptions. Interface DocumentFragment DocumentFragment is a "lightweight" or "minimal" Document object. It is very common to want to be able to extract a portion of a document's tree or to create a new fragment of a document. Imagine implementing a user command like cut or rearranging a document by moving fragments around. It is desirable to have an object which can hold such fragments and it is quite natural to use a Node for this purpose. While it is true that a Document object could fulfil this role, a Document object can potentially be a heavyweight object, depending on the underlying implementation. What is really needed for this is a very lightweight object. DocumentFragment is such an object. Furthermore, various operations -- such as inserting nodes as children of another Node -- may take DocumentFragment objects as arguments; this results in all the child nodes of the DocumentFragment being moved to the child list of this node. The children of a DocumentFragment node are zero or more nodes representing the tops of any sub-trees defining the structure of the document. DocumentFragment do not need to be well-formed XML documents (although they do need to follow the rules imposed upon well-formed XML parsed entities, which can have multiple top nodes). For example, a DocumentFragment might have only one child and that child node could be a Text node. Such a structure model represents neither an HTML document nor a well-formed XML document. When a DocumentFragment is inserted into a Document (or indeed any other Node that may take children) the children of the DocumentFragment and not the DocumentFragment itself are inserted into the Node. This makes the DocumentFragment very useful when the user wishes to create nodes that are siblings; the DocumentFragment acts as the parent of these nodes so that the user can use the standard methods from the Node interface, such as insertBefore() and appendChild(). IDL Definition interface DocumentFragment : Node { }; Interface Document The Document interface represents the entire HTML or XML document. Conceptually, it is the root of the document tree, and provides the primary access to the document's data. Since elements, text nodes, comments, processing instructions, etc. cannot exist outside the context of a Document, the Document interface also contains the factory methods needed to create these objects. The Node objects created have a ownerDocument attribute which associates them with the Document within whose context they were created. IDL Definition interface Document : Node { readonly attribute DocumentType doctype; readonly attribute DOMImplementation implementation; readonly attribute Element documentElement; Element createElement(in wstring tagName) raises(DOMException); DocumentFragment createDocumentFragment(); Text createTextNode(in wstring data); Comment createComment(in wstring data); CDATASection createCDATASection(in wstring data) raises(DOMException); ProcessingInstruction createProcessingInstruction(in wstring target, in wstring data) raises(DOMException); Attribute createAttribute(in wstring name) raises(DOMException); EntityReference createEntityReference(in wstring name) raises(DOMException); NodeList getElementsByTagName(in wstring tagname); }; Attributes doctype For XML, this provides access to the Document Type Definition (see DocumentType) associated with this XML document. For HTML documents and XML documents without a document type definition this returns null. implementation A DOM application may use objects from multiple implementations. This provides access to the DOMImplementation object that handles this document. documentElement This is a convenience attribute that allows direct access to the child node that is the root element of the document. For HTML documents, this is the element with the tagName "HTML". Methods createElement Create an element of the type specified. Note that the instance returned implements the Element interface, so attributes can be specified directly on the returned object. Parameters tagName The name of the element type to instantiate. For XML, this is case-sensitive. For HTML, the tagName parameter may be provided in any case, but it must be mapped to the canonical uppercase form by the DOM implementation. Return Values A new Element object. Exceptions DOMException INVALID_NAME_ERR: Raised if an invalid name is specified. createDocumentFragment Create an empty DocumentFragment object. Return Values A new DocumentFragment. This method has no parameters. This method raises no exceptions. createTextNode Create a Text node given the specified string. Parameters data The data for the node. Return Values The new Text object. This method raises no exceptions. createComment Create a Comment node given the specified string. Parameters data The data for the node. Return Values The new Comment object. This method raises no exceptions. createCDATASection Create a CDATASection node whose value is the specified string. Parameters data The data for the CDATASection contents. Return Values The new CDATASection object. Exceptions DOMException NOT_SUPPORTED_ERR: Raised if this document is an HTML document. createProcessingInstruction Create a ProcessingInstruction node given the specified name and data strings. Parameters target The target part of the processing instruction. data The data for the node. Return Values The new ProcessingInstruction object. Exceptions DOMException INVALID_NAME_ERR: Raised if an invalid name is specified. NOT_SUPPORTED_ERR: Raised if this document is an HTML document. createAttribute Create an Attribute of the given name. Note that the Attribute instance can then be set on an Element using the setAttribute method. Parameters name The name of the attribute. Return Values A new Attribute object. Exceptions DOMException INVALID_NAME_ERR: Raised if an invalid name is specified. createEntityReference Creates an EntityReference object. Parameters name The name of the entity to reference. Return Values The new EntityReference object. Exceptions DOMException NOT_SUPPORTED_ERR: Raised if this document is an HTML document. getElementsByTagName Returns a NodeList of all the Elements with a given tag name in the order in which they would be encountered in a preorder traversal of the Document tree. Parameters tagname The name of the tag to match on. If the string "*" is given, this method returns all elements in the document Return Values A new NodeList object containing all the Elements. This method raises no exceptions. Interface Node The Node object is the primary datatype for the entire Document Object Model. It represents a single node in the document tree. While all objects implementing the Node interface expose methods for dealing with children, not all objects implementing the Node interface may have children. For example, Text nodes may not have children, and adding children to such nodes results in a DOMException being raised. The attributes nodeName, nodeValue and attributes are included as a mechanism to get at node information without casting down to the specific derived interface. In cases where there is no obvious mapping of these attributes for a specific nodeType (e.g., nodeValue for an Element or attributes for a Comment), this returns null. Note that the specialized interfaces may contain additional and more convenient mechanisms to get and set the relevant information. IDL Definition interface Node { // NodeType const unsigned short ELEMENT_NODE = 1; const unsigned short ATTRIBUTE_NODE = 2; const unsigned short TEXT_NODE = 3; const unsigned short CDATA_SECTION_NODE = 4; const unsigned short ENTITY_REFERENCE_NODE = 5; const unsigned short ENTITY_NODE = 6; const unsigned short PROCESSING_INSTRUCTION_NODE = 7; const unsigned short COMMENT_NODE = 8; const unsigned short DOCUMENT_NODE = 9; const unsigned short DOCUMENT_TYPE_NODE = 10; const unsigned short DOCUMENT_FRAGMENT_NODE = 11; const unsigned short NOTATION_NODE = 12; readonly attribute wstring nodeName; attribute wstring nodeValue; readonly attribute unsigned short nodeType; readonly attribute Node parentNode; readonly attribute NodeList childNodes; readonly attribute Node firstChild; readonly attribute Node lastChild; readonly attribute Node previousSibling; readonly attribute Node nextSibling; readonly attribute NamedNodeMap attributes; readonly attribute Document ownerDocument; Node insertBefore(in Node newChild, in Node refChild) raises(DOMException); Node replaceChild(in Node newChild, in Node oldChild) raises(DOMException); Node removeChild(in Node oldChild) raises(DOMException); Node appendChild(in Node newChild) raises(DOMException); boolean hasChildNodes(); Node cloneNode(in boolean deep); }; Definition group NodeType An integer indicating which type of node this is. Defined Constants ELEMENT_NODE The node is a Element. ATTRIBUTE_NODE The node is an Attribute. TEXT_NODE The node is a Text node. CDATA_SECTION_NODE The node is a CDATASection. ENTITY_REFERENCE_NODE The node is an EntityReference. ENTITY_NODE The node is an Entity. PROCESSING_INSTRUCTION_NODE The node is a ProcessingInstruction. COMMENT_NODE The node is a Comment. DOCUMENT_NODE The node is a Document. DOCUMENT_TYPE_NODE The node is a DocumentType. DOCUMENT_FRAGMENT_NODE The node is a DocumentFragment. NOTATION_NODE The node is a Notation. The values of nodeName, nodeValue, and attributes vary according to the node type as follows: nodeName nodeValue attributes Element tagName null NamedNodeMap Attribute name of attribute value of null attribute Text #text content of null the text node CDATASection #cdata-section content of null the CDATA Section EntityReference name of entity null null referenced Entity entity name null null ProcessingInstructiontarget entire null content excluding the target Comment #comment content of null the comment Document #document null null DocumentType document type name null null DocumentFragment #document-fragment null null Notation notation name null null Attributes nodeName The name of the node depends on its type; see the table above. nodeValue The value of a node depends on its type; see the table above. On setting a NO_MODIFICATION_ALLOWED_ERR DOMException is raised when the node is readonly. On retrieval a WSTRING_SIZE_ERR DOMException is raised when it would return more characters than fit in a wstring variable on the implementation platform. nodeType A code representing the type of the underlying object's type, as defined above. parentNode The parent of the given Node instance. All nodes, except Document, DocumentFragment, and Attribute may have a parent. However, if a node has just been created and not yet added to the tree, or if it has been removed from the tree, this is null. childNodes A NodeList object that enumerate all children of this node. If there are no children, this is a NodeList containing no nodes. The content of the returned NodeList is "live" in the sense that, for instance, changes to the children of the node object that it was created from are immediately reflected in the nodes returned by the NodeList accessors; it is not a static snapshot of the content of the Node. This is true for every NodeList, including the ones returned by the getElementsByTagName method. firstChild The first child of a node. If there is no such node, this returns null. lastChild The last child of a node. If there is no such node, this returns null. previousSibling The node immediately preceding the current node. If there is no such node, null is returned. nextSibling The node immediately following the current node. If there is no such node, this returns null. attributes Provides access to a NamedNodeMap containing the node's attributes (if it is an Element) or null otherwise. ownerDocument Provides access to the Document object associated with this Node. This is also the Document object used to create new Nodes. When the Node is a Document this is null. Methods insertBefore Inserts a child node newChild before the existing child node refChild. If refChild is null, insert newChild at the end of the list of children. If newChild is a DocumentFragment object, all of its children are inserted, in the same order, before refChild. If the newChild is already in the tree, it is first removed. Parameters newChild The node to insert refChild The reference node, i.e., the node before which the new node must be inserted. Return Values The node being inserted. Exceptions DOMException HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node. WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. NOT_FOUND_ERR: Raised if refChild is not a child of this node. replaceChild Replaces the child node oldChild with newChild in the set of children of the given node, and returns the oldChild node. If the newChild is already in the tree, it is first removed. Parameters newChild The new node to put in the child list. oldChild The node being replaced in the list. Return Values The node replaced. Exceptions DOMException HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node. WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. NOT_FOUND_ERR: Raised if oldChild is not a child of this node. removeChild Removes the child node indicated by oldChild from the list of children and returns it. Parameters oldChild The node being removed Return Values The node removed. Exceptions DOMException NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. NOT_FOUND_ERR: Raised if oldChild is not a child of this node. appendChild Adds a child node to the end of the list of children for this node. If the newChild is already in the tree, it is first removed. Parameters newChild The node to add. If it is a DocumentFragment object, the entire contents of the document fragment are moved into the child list of this node Return Values The node added. Exceptions DOMException HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node. WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. hasChildNodes This is a convenience method to allow easy determination of whether a Node has children or not. Return Values true if the node has any children, false if the node has no children. This method has no parameters. This method raises no exceptions. cloneNode Returns a duplicate of the node, i.e., serves as a generic copy constructor for Nodes. The duplicate node has no parent (parentNode returns null.). Cloning an Element copies all attributes and their values, including those generated by the XML processor to represent defaulted attributes, but this method does not copy any text it contains unless it is a deep clone, since the text is contained in a child Text node. Cloning any other type of node simply returns a copy of this node. Parameters deep If true, recursively clone the subtree under the specified node; if false, clone only the node itself (and its attributes, if it is an Element). Return Values The duplicate node. This method raises no exceptions. Interface NodeList The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. The items in the NodeList are accessible via an integral index, starting from 0. IDL Definition interface NodeList { Node item(in unsigned long index); readonly attribute unsigned long length; }; Methods item Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, null is returned. Parameters index Index into the collection Return Values The node at the index position in the NodeList, or null if that is not a valid index. This method raises no exceptions. Attributes length The number of nodes in the NodeList instance. The range of valid child node indices is 0 to length-1 inclusive. Interface NamedNodeMap Objects implementing the NamedNodeMap interface are used to represent collections of nodes that can be accessed by name. Note that NamedNodeMap does not inherit from NodeList; NamedNodeMaps are not maintained in any particular order. Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index, but this is simply to allow convenient enumeration of the contents of a NamedNodeMap, and does not imply that the DOM specifies an order to these Nodes. DOM implementations should, when possible, preserve the ordering of objects in a NamedNodeMap in case the author of the source document assigned some meaning to this ordering that is not defined in the DOM, XML or HTML specifications. IDL Definition interface NamedNodeMap { Node getNamedItem(in wstring name); Node setNamedItem(in Node arg) raises(DOMException); Node removeNamedItem(in wstring name) raises(DOMException); Node item(in unsigned long index); readonly attribute unsigned long length; }; Methods getNamedItem Retrieves a node from a list by name Parameters name Name of a node to retrieve. Return Values A Node (of any type) with the specified name, or null if the specified name did not identify any node in the list. This method raises no exceptions. setNamedItem Add a node to a NamedNodeMap using the nodeName attribute of the node. As the nodeName attribute is used to derive the name which the node must be stored under, multiple nodes of certain types (those that have a "special" string value) cannot be stored as the names would clash. This is seen as preferable to allowing nodes to be aliased. Parameters arg A node to store in a named node list. The node will later be accessible using the value of the nodeName attribute of the node. If a node with that name is already present in the list, it is replaced by the new one. Return Values If the new Node replaces an existing node with the same name the previously existing Node is returned, otherwise null is returned. Exceptions DOMException WRONG_DOCUMENT_ERR: Raised if arg was created from a different document than the one that created the NamedNodeMap. NO_MODIFICATION_ALLOWED_ERR: Raised if this NamedNodeMap is readonly. INUSE_ATTRIBUTE_ERR: Raised if arg is an Attribute that is already attribute of another Element object. The DOM user must explicitly clone Attribute nodes to re-use them in other elements. removeNamedItem Remove a node identified by its name. If the removed node is an Attribute with a default value it is immediately replaced. Parameters name The name of a node to remove Return Values The node removed from the list or null if no node with such a name exists. Exceptions DOMException NOT_FOUND_ERR: Raised if there is no node named name in the list. item Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, null is returned. Parameters index Index into the collection Return Values The node at the index position in the NamedNodeMap, or null if that is not a valid index. This method raises no exceptions. Attributes length The number of nodes in the NamedNodeMap instance. The range of valid child node indices is 0 to length-1 inclusive. Interface CharacterData The CharacterData interface extends Node with a set of attributes and methods for accessing character data in the DOM. This set is defined here rather than on each object that uses these attributes and methods for clarity. No DOM objects correspond directly to CharacterData, though Text and others do inherit the interface from it. All offsets in this interface start from 0. IDL Definition interface CharacterData : Node { attribute wstring data; readonly attribute unsigned long length; wstring substringData(in unsigned long offset, in unsigned long count) raises(DOMException); void appendData(in wstring arg) raises(DOMException); void insertData(in unsigned long offset, in wstring arg) raises(DOMException); void deleteData(in unsigned long offset, in unsigned long count) raises(DOMException); void replaceData(in unsigned long offset, in unsigned long count, in wstring arg) raises(DOMException); }; Attributes data This provides access to the character data of a node that implements this interface. The DOM implementation may not put arbitrary limits on the amount of data that may be stored in a CharacterData node. However, implementation limits may mean that the entirety of a node's data data may not fit into a single wstring. Attempts to retrieve data that does not fit in a single wstring causes a WSTRING_SIZE_ERR DOMException to be raised. In such cases, the user may call substringData to retrieve the data in appropriately sized pieces. In addition, on setting a NO_MODIFICATION_ALLOWED_ERR DOMException is raised when the node is readonly. length This provides access to the number of characters that are available through data and the substringData method below. This may have the value zero, i.e., CharacterData nodes may be empty. Methods substringData Extracts a range of data from an object implementing this interface. Parameters offset Start offset of substring to extract count The number of characters to extract. Return Values This method returns the specified substring. If the sum of offset and count exceeds the length, then all characters to the end of the data are returned. Exceptions DOMException INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of characters in data, and if the specified count is negative. WSTRING_SIZE_ERR: Raised if the specified range of text does not fit into a wstring. appendData Append the string to the end of the character data in the object implementing this interface. Upon success, data provides access to the concatenation of data and the wstring specified. Parameters arg The wstring to append. Exceptions DOMException NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. This method returns nothing. insertData Insert a string at the specified character offset. Parameters offset The character offset at which to insert arg The wstring to insert Exceptions DOMException INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of characters in data. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. This method returns nothing. deleteData Remove a range of characters from the node. Upon success, data and length reflect the change. Parameters offset The offset from which to remove characters. count The number of characters to delete. If the sum of offset and count exceeds length then all characters from offset to the end of the data are deleted. Exceptions DOMException INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of characters in data, and if the specified count is negative. "NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. This method returns nothing. replaceData Replace the characters starting at the specified character offset with the specified string. Parameters offset The offset from which to start replacing. count The number of characters to replace. If the sum of offset and count exceeds length, then all characters to the end of the data are replaced (i.e., the effect is the same as a remove method call with the same range, followed by an append method invocation). arg The wstring with which the range must be replaced. Exceptions DOMException INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of characters in data, and if the specified count is negative. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. This method returns nothing. Interface Attribute The Attribute interface represents an attribute in an Element object. Typically the allowable values for the attribute are defined in a document type definition. DOM Attribute objects inherit the Node interface, but since they are not actually child nodes of the element they describe, the DOM does not consider them part of the document tree. Thus, the Node attributes parentNode, previousSibling, and nextSibling have a null value for Attribute objects. The DOM takes the view that attributes are properties of elements rather than having a separate identity separate from the elements they are associated with; this should make it more efficient to implement such features as default attributes associated with all elements of a given type. Furthermore, Attribute nodes may not be immediate children of a DocumentFragment. However, they can be associated with element nodes contained within a DocumentFragment. In short, users and implementors of the DOM need to be aware that Attribute nodes have some things in common with other objects inheriting the Node interface, but they also are quite distinct. The attribute's effective value is determined as follows: if this attribute has been explicitly assigned any value, that value is the attribute's effective value; otherwise, if there is a declaration for this attribute, and that declaration includes a default value, then that default value is the attribute's effective value; otherwise, the attribute does not exist on this element in the structure model until it has been explicitly added. Note that the nodeValue attribute on the Attribute instance can also be used to retrieve the string version of the attribute's value(s). In XML, the value of an attribute is represented by the child nodes of an Attribute node, since the value can contain entity references. Thus, attributes which contain entity references will have a child list containing both Text nodes and EntityReference nodes. In addition, because the attribute type may be unknown, there are no tokenised attribute values. IDL Definition interface Attribute : Node { readonly attribute wstring name; readonly attribute boolean specified; attribute wstring value; }; Attributes name Returns the name of this attribute. specified If this attribute was explicitly given a value in the original document, this is true; otherwise, it is false. Note that the implementation is in charge of this attribute, not the user. If the user changes the value of the attribute (even if it ends up having the same value as the default value) then the specified flag is automatically flipped to true. To re-specify the attribute as the default value from the DTD, the user must delete the attribute, and then the implementation will make a new attribute available with specified == false and the default value (if one exists). In summary: + If the attribute has an assigned value in the document and specified is true, the value is the assigned value. + If the attribute has no assigned value in the document and has a default value in the DTD, then specified is false, and the value is the default value in the DTD. + If the attribute has no assigned value in the document and has a value of #IMPLIED in the DTD, then the attribute does not appear in the structure model of the document. value When used to get the Value of an attribute, returns the value of the attribute as a string. Character and general entity references are replaced with their values in the returned string. When used to set the Value of an Attribute, creates a Text node with the unparsed contents of the string. Interface Element By far the vast majority (apart from text) of objects that authors encounter when traversing a document are Element nodes. Assume the following XML document: When represented using DOM, the top node is "elementExample", which contains two child Element nodes, one for "subelement1" and one for "subelement2". "subelement1" contains no child nodes. Elements may have attributes associated with them; since the Element interface inherits from Node, the generic Node interface method getAttributes may be used to retrieve the set of all attributes for an element. There are methods on the Element interface to retrieve either an Attribute object by name or directly an Attribute value by name. Attribute objects should be retrieved in XML, where attributes may contain entity references, meaning that their values may be a fairly complex sub-tree. On the other hand, in HTML, where all attributes have simple string values, methods to directly access an Attribute value can safely be used as a convenience. IDL Definition interface Element : Node { readonly attribute wstring tagName; wstring getAttribute(in wstring name); void setAttribute(in wstring name, in wstring value) raises(DOMException); void removeAttribute(in wstring name) raises(DOMException); Attribute getAttributeNode(in wstring name); Attribute setAttributeNode(in Attribute newAttr) raises(DOMException); Attribute removeAttributeNode(in Attribute oldAttr) raises(DOMException); NodeList getElementsByTagName(in wstring name); void normalize(); }; Attributes tagName This attribute contains the string that is the element's name. For example, in: ... , tagName has the value "elementExample". Note that this is case-preserving in XML, as are all of the operations of the DOM. The HTML DOM returns the tagName of an HTML element in the canonical uppercase form, regardless of the case in the source HTML document. Methods getAttribute Retrieves an Attribute value by name. Parameters name The name of the attribute to retrieve Return Values The Attribute value as a string, or the empty string if that attribute does not have a specified or defaulted value. This method raises no exceptions. setAttribute Adds a new attribute. If an attribute with that name is already present in the element, its value is changed to be that of the value parameter. This value is a simple string, it is not parsed as it is being set. So any markup (such as syntax to be recognized as an entity reference) is treated as literal text, and needs to be appropriately escaped by the implementation when it is written out. In order to assign an attribute value that contains entity references, the user must create an Attribute node plus any Text and EntityReference nodes, build the appropriate subtree, and use setAttributeNode to assign it as the value of an attribute. Parameters name Name of an attribute value Value to set in string form Exceptions DOMException INVALID_NAME_ERR: Raised if an invalid name is specified. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. This method returns nothing. removeAttribute Removes the Attribute with the specified name. If the removed Attribute has a default value it is immediately replaced. Parameters name The name of the attribute to remove Exceptions DOMException "NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. This method returns nothing. getAttributeNode Retrieves an attribute node by name. Parameters name The name of the attribute to retrieve Return Values The attribute node with the specified attribute name or null if there is no such attribute. This method raises no exceptions. setAttributeNode Adds a new attribute. If an attribute with that name is already present in the element, it is replaced by the new one. Parameters newAttr The attribute node to add to the attribute list Return Values If the newAttr attribute replaces an existing attribute with the same name, the previously existing Attribute node is returned, otherwise null is returned. Exceptions DOMException WRONG_DOCUMENT_ERR: Raised if newAttr was created from a different document than the one that created the element. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. INUSE_ATTRIBUTE_ERR: Raised if newAttr is already an attribute of another Element object. The DOM user must explicitly clone Attribute nodes to re-use them in other elements. removeAttributeNode Removes the specified attribute. Parameters oldAttr The Attribute node to remove from the attribute list. If the removed Attribute has a default value it is immediately replaced. Return Values Returns the Attribute node that was removed. Exceptions DOMException NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. NOT_FOUND_ERR: Raised if oldAttr is not an attribute of the element. getElementsByTagName Returns a NodeList of all descendant elements of with a given tag name in the order in which they would be encountered in a preorder traversal of the Element tree. Parameters name The name of the tag to match on. If the string "*" is given, this method returns all descendant elements of the starting element. Return Values This method returns a list of element nodes that have the specified tag name. This method raises no exceptions. normalize Puts all Text nodes in the full depth of the sub-tree underneath this Element into a "normal" form where only markup (e.g., tags, comments, processing instructions, CDATA sections, and entity references) separates Text nodes, i.e., there are no adjacent Text nodes. This can be used to ensure that the DOM view of a document is identical to how it would look if saved and re-loaded, and is useful when operations (such as XPointer lookups) that depend on a particular document tree structure are to be used. This method has no parameters. This method returns nothing. This method raises no exceptions. Interface Text The text interface represents the textual content (termed character data in XML) of an Element or Attribute. If there is no markup inside an element's content, the text is contained in a single object implementing the Text interface that is the child of the element. Any markup is parsed into child elements that are siblings of the text nodes on either side of it, and whose content is represented as text node children of the markup element. When a document is first made available to the DOM, there is only one Text node for each block of text. Users may create adjacent Text nodes that represent the contents of a given element without any intervening markup, but should be aware that there is no way to represent the separations between these nodes in XML or HTML, so they will not (in general) persist between DOM editing sessions. The normalize() method on Element merges any such adjacent Text objects into a single node for each block of text; this is recommended before employing operations that depend on a particular document structure, such as navigation with XPointers. IDL Definition interface Text : CharacterData { Text splitText(in unsigned long offset) raises(DOMException); }; Methods splitText Breaks a text node into two text nodes at the specified offset, keeping both in the tree as siblings. Parameters offset The offset at which to split, starting from 0. Return Values This method returns the new text node containing all the content at and after the offset point. The original node contains all the content up to the offset point. Exceptions DOMException INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of characters in data. NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly. Interface Comment This represents the content of a comment, i.e. all the characters between the starting ''. Note that this is the definition of a comment in XML, and, in practice, HTML, although some HTML tools may implement the full SGML comment structure. IDL Definition interface Comment : CharacterData { }; Interface ProcessingInstruction The ProcessingInstruction interface represents a "processing instruction", used in XML (and legal, though seldom supported, in HTML) as a way to keep processor-specific information in the text of the document. The content of the node is the entire content between the delimiters of the processing instruction. IDL Definition interface ProcessingInstruction : Node { readonly attribute wstring target; attribute wstring data; }; Attributes target XML defines a target as the first token following the markup that begins the processing instruction. This attribute value is that name. For HTML, the value is null. data The content of the processing instruction. In HTML this is from from the character immediately after the . In XML this is from the first non white space character after the target to the character immediately preceding the ?>. On setting a NO_MODIFICATION_ALLOWED_ERR DOMException is raised when the node is readonly. 1.3. Extended Interfaces The interfaces defined here form part of the DOM Level 1 Core specification, but objects that expose these interfaces will never be encountered in a DOM implementation that deals only with HTML. As such, HTML-only DOM implementations do not need to have objects that implement these interfaces. Interface CDATASection CDATA Sections are used to escape blocks of text containing characters that would otherwise be regarded as markup. The only delimiter that is recognised in a CDATA Section is the "]]>" string that ends the CDATA Section. CDATA Sections can not be nested. The primary purpose is for including material such as XML fragments, without needing to escape all the delimiters. The wstring attribute of the Text node holds the text that is contained by the CDATA section. Note that this may contain characters that need to be escaped outside of CDATA sections. The CDATA Section inherits the CharacterData interface through the Text interface. Adjacent CDATA Sections are not merged by use of the Element.normalize() method. IDL Definition interface CDATASection : Text { }; Interface DocumentType Each document has a (possibly null) attribute that contains a reference to a DocumentType object. The DocumentType class in the DOM Level 1 core provides an interface to the list of entities that are defined for the document, and little else because the effect of namespaces and the various XML scheme efforts on DTD representation are not clearly understood as of this writing. IDL Definition interface DocumentType : Node { readonly attribute wstring name; readonly attribute NamedNodeMap entities; readonly attribute NamedNodeMap notations; }; Attributes name The name attribute is a wstring that holds the name of DTD; i.e., the name immediately following the DOCTYPE keyword. entities This is a NamedNodeMap containing the general entities, both external and internal, declared in the DTD. For example in: ]> the interface provides access to foo and bar but not baz. All objects supporting the Node interface that are accessed through this attribute, also support the Entity interface. For HTML, this is always null. notations This is a NamedNodeMap containing the notations declared in the DTD. Each node in this map also implements the Notation interface. Interface Notation This interface represents a notation declared in the DTD. A notation either declares, by name, the format of an unparsed entity (see section 4.7 of the XML 1.0 specification), or is used for formal declaration of Processing Instruction targets (see section 2.6 of the XML 1.0 specification). The nodeName attribute inherited from Node is set to the declared name of the notation. IDL Definition interface Notation : Node { readonly attribute wstring publicId; readonly attribute wstring systemId; }; Attributes publicId The public identifier for the notation. If the public identifier was not specified, this is null. systemId The system identifier for the notation. If the system identifier was not specified, this is null. Interface Entity This interface represents an entity, either parsed or unparsed, in an XML document. Note that this models the entity itself not the entity declaration. Entity declaration modeling has been left for a later Level of the DOM specification. An XML processor may choose to completely expand entities before the structure model is passed to the DOM; in this case there will be no entity references in the document tree. The nodeName attribute that is inherited from Node contains the name of the entity. The structure of the child list is exactly the same as the structure of the child list for an EntityReference with the same nodeName value. Level 1 of the DOM API does not support editing Entity declarations; if a user wants to make changes to the contents of an Entity, the EntityReference node has to be replaced in the structure model by a clone of the Entity's contents. All the nodes beneath the entity reference are readonly. IDL Definition interface Entity : Node { readonly attribute wstring publicId; readonly attribute wstring systemId; readonly attribute wstring notationName; }; Attributes publicId The public identifier associated with the entity, if specified. If the public identifier was not specified, this is null. systemId The system identifier associated with the entity, if specified. If the system identifier was not specified, this is null. notationName For unparsed entities, the name of the notation for the entity. For parsed entities, this is null. Interface EntityReference EntityReference objects may be inserted into the structure model when an entity reference is in the source document, or when the user wishes to insert an entity reference. Note that character entities are considered to be expanded by the HTML or XML processor so that characters are represented by their Unicode equivalent rather than by an entity reference. The replacement value of the referenced Entity, if available, appears in the child list of the EntityReference object. Alternatively, the XML processor may completely expand references to entities while building the structure model, instead of providing EntityReference objects. XML does not mandate that a non-validating XML processor read and process entity declarations made in the external subset or declared in external parameter entities. This means that parsed entities declared in the external subset need not be expanded by some classes of applications, and that the replacement value of the entity may not be available. The resolution of the children of the EntityReference (the replacement value of the referenced Entity) may be lazily evaluated; actions by the user (such as calling the childNodes method on the EntityReference Node) are assumed to trigger the evaluation. IDL Definition interface EntityReference : Node { }; 2. Document Object Model (HTML) Level 1 Editors Mike Champion, ArborText Gavin Nicol, Inso EPS Vidur Apparao, Netscape Scott Isaacs, Microsoft (until January 1998) Chris Wilson, Microsoft (after January 1998) 2.1. Introduction This section extends the Level 1 Core API to describe objects and methods specific to HTML documents. In general, the functionality needed to manipulate hierarchical document structures, elements, and attributes will be found in the core section; functionality that depends on the specific elements defined in HTML will be found in this section. The goals of the HTML-specific DOM API are: * to specialize and add functionality that relates specifically to HTML documents and elements. * to address issues of backwards compatibility with the "DOM Level 0". * to provide convenience mechanisms, where appropriate, for common and frequent operations on HTML documents. The key differences between the core DOM and the HTML application of DOM is that the HTML Document Object Model exposes a number of convenience methods and properties that are consistent with the existing models and are more appropriate to script writers. In many cases, these enhancements are not applicable to a general DOM because they rely on the presence of a predefined DTD. For DOM Level 1, the transitional and frameset DTDs for HTML 4.0 are assumed. Interoperability between implementations is only guaranteed for elements and attributes that are specified in these DTDs. The W3C DOM Working Group attempted, wherever possible, to maintain compatibility with the "DOM Level 0", which refers to the functionality exposed in Netscape Navigator 3.0 and Microsoft Internet Explorer 3.0. More specifically, this document includes the following specializations for HTML: * An HTMLDocument interface, derived from the core Document interface. HTMLDocument specifies the operations and queries that can be made on a HTML document. * An HTMLElement interface, derived from the core Element interface. HTMLElement specifies the operations and queries that can be made on any HTML element. Methods on HTMLElement include those that allow for the retrieval and modification of attributes that apply to all HTML elements. * Specializations for all HTML elements that have attributes that extend beyond those specified in the HTMLElement interface. For all such attributes, the derived interface for the element contains explicit methods for setting and getting the values. The DOM Level 1 does not include mechanisms to access and modify style specified through CSS 1. Furthermore, it does not define an event model for HTML documents. This functionality is planned to be specified in a future Level of this specification. 2.2. HTML Application of Core DOM 2.2.1. Naming Conventions The HTML DOM follows a naming convention for properties, methods, events, collections, and data types. All names are defined as one or more English words concatenated together to form a single string. Properties and Methods The property or method name starts with the initial keyword in lowercase, and each subsequent word starts with a capital letter. For example, a property that returns document meta information such as the date the file was created might be named "fileDateCreated". In the ECMAScript binding, properties are exposed as properties of a given object. In Java, properties are exposed with get and set methods. Non-HTML 4.0 interfaces and attributes While most of the interfaces defined below can be mapped directly to elements defined in the HTML 4.0 Recommendation, some of them cannot. Similarly, not all attributes listed below have counterparts in the HTML 4.0 specification (and some do, but have been renamed to avoid conflicts with scripting languages). Interfaces and attribute definitions that have links to the HTML 4.0 specification have corresponding element and attribute definitions there; all others are added by this specification, either for convenience or backwards compatibility with "DOM Level 0" implementations. 2.3. Miscellaneous Object Definitions Interface HTMLCollection An HTMLCollection is a list of nodes. An individual node may be accessed by either ordinal index or the node's name or id attributes. Note: Collections in the HTML DOM are assumed to live meaning that they are automatically updated when the underlying document is changed. IDL Definition interface HTMLCollection { readonly attribute unsigned long length; Node item(in unsigned long index); Node namedItem(in wstring name); }; Attributes length This attribute specifies the length or size of the list. Methods item This method retrieves a node specified by ordinal index. Nodes are numbered in tree order (depth-first traversal order). Parameters index The index of the node to be fetched. The index origin is 0. Return Values The Node at the corresponding position upon success. A value of null is returned if the index is out of range. This method raises no exceptions. namedItem This method retrieves a Node using a name. Parameters name The name of the Node to be fetched. Return Values The Node with a name or id attribute whose value corresponds to the specified string. Upon failure (e.g., no Node with this name exists), returns null. This method raises no exceptions. 2.4. Objects related to HTML documents Interface HTMLDocument An HTMLDocument is the root of the HTML hierarchy and holds the entire content. Beside providing access to the hierarchy, it also provides some convenience methods for accessing certain sets of information from the document. The following properties have been deprecated in favor of the corresponding ones for the BODY element: o alinkColor o background o bgColor o fgColor o linkColor o vlinkColor IDL Definition interface HTMLDocument : Document { attribute wstring title; readonly attribute wstring referrer; readonly attribute wstring domain; readonly attribute wstring URL; attribute HTMLElement body; readonly attribute HTMLCollection images; readonly attribute HTMLCollection applets; readonly attribute HTMLCollection links; readonly attribute HTMLCollection forms; readonly attribute HTMLCollection anchors; attribute wstring cookie; void open(); void close(); void write(in wstring text); void writeln(in wstring text); Element getElementById(in wstring elementId); NodeList getElementsByName(in wstring elementName); }; Attributes title The title of a document as specified by the TITLE element in the head of the document. referrer Returns the URI of the page that linked to this page. The value is an empty string if the user navigated to the page directly (not through a link, but, for example, via a bookmark). domain The domain name of the server that served the document, or a null string if the server cannot be identified by a domain name. URL The complete URI of the document. body The element that contains the content for the document. In documents with BODY contents, returns the BODY element, and in frameset documents, this returns the outermost FRAMESET element. images A collection of all the IMG elements in a document. The behavior is limited to IMG elements for backwards compatibility. applets A collection of all the OBJECT elements that include applets and APPLET (deprecated) elements in a document. links A collection of all AREA elements and anchor (A) elements in a document with a value for the href attribute. forms A collection of all the forms of a document. anchors A collection of all the anchor (A) elements in a document with a value for the name attribute.Note. For reasons of backwards compatibility, the returned set of anchors only contains those anchors created with the name attribute, not those created with the id attribute. cookie The cookies associated with this document. If there are none, the value is an empty string. Otherwise, the value is a string: a semicolon-delimited list of "name, value" pairs for all the cookies associated with the page. For example, name=value;expires=date. Methods open Note. This method and the ones following allow a user to add to or replace the structure model of a document using strings of unparsed HTML. At the time of writing alternate methods for providing similar functionality for both HTML and XML documents were being considered. The following methods may be deprecated at some point in the future in favor of a more general-purpose mechanism. Open a document stream for writing. If a document exists in the target, this method clears it. This method has no parameters. This method returns nothing. This method raises no exceptions. close Closes a document stream opened by open() and forces rendering. This method has no parameters. This method returns nothing. This method raises no exceptions. write Write a string of text to a document stream opened by open(). The text is parsed into the document's structure model. Parameters text The string to be parsed into some structure in the document structure model. This method returns nothing. This method raises no exceptions. writeln Write a string of text followed by a newline character to a document stream opened by open(). The text is parsed into the document's structure model. Parameters text The string to be parsed into some structure in the document structure model. This method returns nothing. This method raises no exceptions. getElementById Returns the Element whose id is given by elementId. If no such element exists, returns void. Behavior is not defined if more than one element has this id. Parameters elementId The unique id value for an element. Return Values This method raises no exceptions. getElementsByName Returns the (possibly empty) collection of elements whose name value is given by elementName. Parameters elementName The name attribute value for an element. Return Values This method raises no exceptions. 2.5. HTML Elements 2.5.1. Property Attributes HTML attributes are exposed as properties on the element object. The name of the exposed property always uses the naming conventions, and is independent of the case of the attribute in the source document. The data type of the property is determined by the type of the attribute as determined by the HTML 4.0 transitional and frameset DTDs. The attributes have the semantics (including case-sensitivity) given in the HTML 4.0 specification. The attributes are exposed as properties for compatibility with "DOM Level 0". This usage is deprecated because it can not be generalized to all possible attribute names, as is required both for XML and potentially for future versions of HTML. We recommend the use of generic methods on the core Element interface for setting, getting and removing attributes. DTD Data Type Object Model Data Type CDATA wstring Value list (e.g., (left | right | center)) wstring one-value Value list (e.g., (border)) boolean Number long int The return value of an attribute that has a data type that is a value list is always capitalized, independent of the case of the value in the source document. For example, if the value of the align attribute on a P element is "left" then it is returned as "Left". For attributes with the CDATA data type, the case of the return value is that given in the source document. 2.5.2. Naming Exceptions To avoid name-space conflicts, an attribute with the same name as a keyword in one of our chosen binding languages is prefixed. For HTML, the prefix used is "html". For example, the for attribute of the LABEL element collides with loop construct naming conventions and is renamed htmlFor. 2.5.3. Exposing Element Type Names (tagName) The element type names exposed through a property are in uppercase. For example, the body element type name is exposed through the "tagName" property as "BODY". 2.5.4. The HTMLElement interface Interface HTMLElement All HTML element interfaces derive from this class. Elements that only expose the HTML core attributes are represented by the base HTMLElement interface. These elements are as follows: o HEAD o special: SUB, SUP, SPAN, BDO o font: TT, I, B, U, S, STRIKE, BIG, SMALL o phrase: EM, STRONG, DFN, CODE, SAMP, KBD, VAR, CITE, ACRONYM, ABBR o list: DD, DT o NOFRAMES, NOSCRIPT o ADDRESS, CENTER Note. The style attribute for this interface is reserved for future usage. IDL Definition interface HTMLElement : Element { attribute wstring id; attribute wstring title; attribute wstring lang; attribute wstring dir; attribute wstring className; }; Attributes id The element's identifier. See the id attribute definition in HTML 4.0. title The element's advisory title. See the title attribute definition in HTML 4.0. lang Language code defined in RFC 1766. See the lang attribute definition in HTML 4.0. dir Specifies the base direction of directionally neutral text and the directionality of tables. See the dir attribute definition in HTML 4.0. className The class attribute of the element. This attribute has been renamed due to conflicts with the "class" keyword exposed by many languages. See the class attribute definition in HTML 4.0. 2.5.5. Object definitions Interface HTMLHtmlElement Root of an HTML document. See the HTML element definition in HTML 4.0. IDL Definition interface HTMLHtmlElement : HTMLElement { attribute wstring version; }; Attributes version Version information about the document's DTD. See the version attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLHeadElement Document head information. See the HEAD element definition in HTML 4.0. IDL Definition interface HTMLHeadElement : HTMLElement { attribute wstring profile; }; Attributes profile URI designating a metadata profile. See the profile attribute definition in HTML 4.0. Interface HTMLLinkElement The LINK element specifies a link to an external resource, and defines this document's relationship to that resource (or vice versa). See the LINK element definition in HTML 4.0. IDL Definition interface HTMLLinkElement : HTMLElement { attribute boolean disabled; attribute wstring charset; attribute wstring href; attribute wstring hreflang; attribute wstring media; attribute wstring rel; attribute wstring rev; attribute wstring target; attribute wstring type; }; Attributes disabled Enables/disables the link. This is currently only used for style sheet links, and may be used to activate or deactivate style sheets. charset The character encoding of the resource being linked to. See the charset attribute definition in HTML 4.0. href The URI of the linked resource. See the href attribute definition in HTML 4.0. hreflang Language code of the linked resource. See the hreflang attribute definition in HTML 4.0. media Designed for use with one or more target media. See the media attribute definition in HTML 4.0. rel Forward link type. See the rel attribute definition in HTML 4.0. rev Reverse link type. See the rev attribute definition in HTML 4.0. target Frame to render the resource in. See the target attribute definition in HTML 4.0. type Advisory content type. See the type attribute definition in HTML 4.0. Interface HTMLTitleElement The document title. See the TITLE element definition in HTML 4.0. IDL Definition interface HTMLTitleElement : HTMLElement { attribute wstring text; }; Attributes text The specified title as a string. Interface HTMLMetaElement This contains generic meta-information about the document. See the META element definition in HTML 4.0. IDL Definition interface HTMLMetaElement : HTMLElement { attribute wstring content; attribute wstring httpEquiv; attribute wstring name; attribute wstring scheme; }; Attributes content Associated information. See the content attribute definition in HTML 4.0. httpEquiv HTTP response header name. See the http-equiv attribute definition in HTML 4.0. name Meta information name. See the name attribute definition in HTML 4.0. scheme Select form of content. See the scheme attribute definition in HTML 4.0. Interface HTMLBaseElement Document base URI. See the BASE element definition in HTML 4.0. IDL Definition interface HTMLBaseElement : HTMLElement { attribute wstring href; attribute wstring target; }; Attributes href The base URI See the href attribute definition in HTML 4.0. target The default target frame. See the target attribute definition in HTML 4.0. Interface HTMLIsIndexElement This element is used for single-line text input. See the ISINDEX element definition in HTML 4.0. This element is deprecated in HTML 4.0. IDL Definition interface HTMLIsIndexElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring prompt; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. prompt The prompt message. See the prompt attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLStyleElement Style information. A more detailed style sheet object model is planned to be defined in a separate document. See the STYLE element definition in HTML 4.0. IDL Definition interface HTMLStyleElement : HTMLElement { attribute boolean disabled; attribute wstring media; attribute wstring type; }; Attributes disabled Enables/disables the style sheet. media Designed for use with one or more target media. See the media attribute definition in HTML 4.0. type The style sheet language (Internet media type). See the type attribute definition in HTML 4.0. Interface HTMLBodyElement The HTML document body. This element is always present in the DOM API, even if the tags are not present in the source document. See the BODY element definition in HTML 4.0. IDL Definition interface HTMLBodyElement : HTMLElement { attribute wstring aLink; attribute wstring background; attribute wstring bgColor; attribute wstring link; attribute wstring text; attribute wstring vLink; }; Attributes aLink Color of active links (after mouse-button down, but before mouse-button up). See the alink attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. background URI of the background texture tile image. See the background attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. bgColor Document background color. See the bgcolor attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. link Color of links that are not active and unvisited. See the link attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. text Document text color. See the text attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. vLink Color of links that have been visited by the user. See the vlink attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLFormElement The FORM element encompasses behavior similar to a collection and an element. It provides direct access to the contained input elements as well as the attributes of the form element. See the FORM element definition in HTML 4.0. IDL Definition interface HTMLFormElement : HTMLElement { readonly attribute HTMLCollection elements; readonly attribute long length; attribute wstring name; attribute wstring acceptCharset; attribute wstring action; attribute wstring enctype; attribute wstring method; attribute wstring target; void submit(); void reset(); }; Attributes elements Returns a collection of all control elements in the form. length The number of form controls in the form. name Names the form. acceptCharset List of character sets supported by the server. See the accept-charset attribute definition in HTML 4.0. action Server-side form handler. See the action attribute definition in HTML 4.0. enctype The content type of the submitted form, generally "application/x-www-form-urlencoded". See the enctype attribute definition in HTML 4.0. method HTTP method used to submit form. See the method attribute definition in HTML 4.0. target Frame to render the resource in. See the target attribute definition in HTML 4.0. Methods submit Submits the form. It performs the same action as a submit button. This method has no parameters. This method returns nothing. This method raises no exceptions. reset Restores a form element's default values. It performs the same action as a reset button. This method has no parameters. This method returns nothing. This method raises no exceptions. Interface HTMLSelectElement The select element allows the selection of an option. The contained options can be directly accessed through the select element as a collection. See the SELECT element definition in HTML 4.0. IDL Definition interface HTMLSelectElement : HTMLElement { readonly attribute wstring type; attribute long selectedIndex; attribute wstring value; attribute long length; readonly attribute HTMLFormElement form; attribute HTMLCollection options; attribute boolean disabled; attribute boolean multiple; attribute wstring name; attribute long size; attribute long tabIndex; void add(in HTMLElement element, in HTMLElement before); void remove(in long index); void blur(); void focus(); }; Attributes type The type of control created. selectedIndex The ordinal index of the selected option. The value -1 is returned if no element is selected. If multiple options are selected, the index of the first selected option is returned. value The current form control value. length The number of options in this SELECT. form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. options The collection of OPTION elements contained by this element. disabled The control is unavailable in this context. See the disabled attribute definition in HTML 4.0. multiple If true, multiple OPTION elements may be selected in this SELECT. See the multiple attribute definition in HTML 4.0. name Form control or object name when submitted with a form. See the name attribute definition in HTML 4.0. size Number of visible rows. See the size attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. Methods add Add a new element to the collection of OPTION elements for this SELECT. Parameters element The element to add. before The element to insert before, or NULL for the head of the list. This method returns nothing. This method raises no exceptions. remove Remove an element from the collection of OPTION elements for this SELECT. Does nothing if no element has the given index. Parameters index The index of the item to remove. This method returns nothing. This method raises no exceptions. blur Removes keyboard focus from this element. This method has no parameters. This method returns nothing. This method raises no exceptions. focus Gives keyboard focus to this element. This method has no parameters. This method returns nothing. This method raises no exceptions. Interface HTMLOptGroupElement Group options together in logical subdivisions. See the OPTGROUP element definition in HTML 4.0. IDL Definition interface HTMLOptGroupElement : HTMLElement { attribute boolean disabled; attribute wstring label; }; Attributes disabled The control is unavailable in this context. See the disabled attribute definition in HTML 4.0. label Assigns a label to this option group. See the label attribute definition in HTML 4.0. Interface HTMLOptionElement A selectable choice. See the OPTION element definition in HTML 4.0. IDL Definition interface HTMLOptionElement : HTMLElement { readonly attribute HTMLFormElement form; attribute boolean defaultSelected; readonly attribute wstring text; attribute long index; attribute boolean disabled; attribute wstring label; readonly attribute boolean selected; attribute wstring value; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. defaultSelected Stores the initial value of the selected attribute. text The text contained within the option element. index The index of this OPTION in its parent SELECT. disabled The control is unavailable in this context. See the disabled attribute definition in HTML 4.0. label Option label for use in hierarchical menus. See the label attribute definition in HTML 4.0. selected Means that this option is initially selected. See the selected attribute definition in HTML 4.0. value The current form control value. See the value attribute definition in HTML 4.0. Interface HTMLInputElement Form control. Note. Depending upon the environment the page is being viewed, the value property may be read-only for the file upload input type. For the "password" input type, the actual value returned may be masked to prevent unauthorized use. See the INPUT element definition in HTML 4.0. IDL Definition interface HTMLInputElement : HTMLElement { attribute wstring defaultValue; attribute boolean defaultChecked; readonly attribute HTMLFormElement form; attribute wstring accept; attribute wstring accessKey; attribute wstring align; attribute wstring alt; attribute boolean checked; attribute boolean disabled; attribute long maxLength; attribute wstring name; attribute boolean readOnly; attribute wstring size; attribute wstring src; attribute long tabIndex; readonly attribute wstring type; attribute wstring useMap; attribute wstring value; void blur(); void focus(); void select(); void click(); }; Attributes defaultValue Stores the initial control value (i.e., the initial value of value). defaultChecked When type has the value "Radio" or "Checkbox", stores the initial value of the checked attribute. form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. accept A comma-separated list of content types that a server processing this form will handle correctly. See the accept attribute definition in HTML 4.0. accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. align Aligns this object (vertically or horizontally) with respect to its surrounding text. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. alt Alternate text for user agents not rendering the normal content of this element. See the alt attribute definition in HTML 4.0. checked Describes whether a radio or check box is checked, when type has the value "Radio" or "Checkbox". The value is TRUE if explicitly set. Represents the current state of the checkbox or radio button. See the checked attribute definition in HTML 4.0. disabled The control is unavailable in this context. See the disabled attribute definition in HTML 4.0. maxLength Maximum number of characters for text fields, when type has the value "Text" or "Password". See the maxlength attribute definition in HTML 4.0. name Form control or object name when submitted with a form. See the name attribute definition in HTML 4.0. readOnly This control is read-only. When type has the value "text" or "password" only. See the readonly attribute definition in HTML 4.0. size Size information. The precise meaning is specific to each type of field. See the size attribute definition in HTML 4.0. src When the type attribute has the value "Image", this attribute specifies the location of the image to be used to decorate the graphical submit button. See the src attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. type The type of control created. See the type attribute definition in HTML 4.0. useMap Use client-side image map. See the usemap attribute definition in HTML 4.0. value The current form control value. Used for radio buttons and check boxes. See the value attribute definition in HTML 4.0. Methods blur Removes keyboard focus from this element. This method has no parameters. This method returns nothing. This method raises no exceptions. focus Gives keyboard focus to this element. This method has no parameters. This method returns nothing. This method raises no exceptions. select Select the contents of the text area. For INPUT elements whose type attribute has one of the following values: "Text", "File", or "Password". This method has no parameters. This method returns nothing. This method raises no exceptions. click Simulate a mouse-click. For INPUT elements whose type attribute has one of the following values: "Button", "Checkbox", "Radio", "Reset", or "Submit". This method has no parameters. This method returns nothing. This method raises no exceptions. Interface HTMLTextAreaElement Multi-line text field. See the TEXTAREA element definition in HTML 4.0. IDL Definition interface HTMLTextAreaElement : HTMLElement { attribute wstring defaultValue; readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute long cols; attribute boolean disabled; attribute wstring name; attribute boolean readOnly; attribute long rows; attribute long tabIndex; readonly attribute wstring type; void blur(); void focus(); void select(); }; Attributes defaultValue Stores the initial control value (i.e., the initial value of value). form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. cols Width of control (in characters). See the cols attribute definition in HTML 4.0. disabled The control is unavailable in this context. See the disabled attribute definition in HTML 4.0. name Form control or object name when submitted with a form. See the name attribute definition in HTML 4.0. readOnly This control is read-only. See the readonly attribute definition in HTML 4.0. rows Number of text rows. See the rows attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. type The type of this form control. Methods blur Removes keyboard focus from this element. This method has no parameters. This method returns nothing. This method raises no exceptions. focus Gives keyboard focus to this element. This method has no parameters. This method returns nothing. This method raises no exceptions. select Select the contents of the TEXTAREA. This method has no parameters. This method returns nothing. This method raises no exceptions. Interface HTMLButtonElement Push button. See the BUTTON element definition in HTML 4.0. IDL Definition interface HTMLButtonElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute boolean disabled; attribute wstring name; attribute long tabIndex; readonly attribute wstring type; attribute wstring value; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. disabled The control is unavailable in this context. See the disabled attribute definition in HTML 4.0. name Form control or object name when submitted with a form. See the name attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. type The type of button. See the type attribute definition in HTML 4.0. value The current form control value. See the value attribute definition in HTML 4.0. Interface HTMLLabelElement Form field label text. See the LABEL element definition in HTML 4.0. IDL Definition interface HTMLLabelElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute wstring htmlFor; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. htmlFor This attribute links this label with another form control by id attribute. See the for attribute definition in HTML 4.0. Interface HTMLFieldSetElement Organizes form controls into logical groups. See the FIELDSET element definition in HTML 4.0. IDL Definition interface HTMLFieldSetElement : HTMLElement { readonly attribute HTMLFormElement form; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. Interface HTMLLegendElement Provides a caption for a FIELDSET grouping. See the LEGEND element definition in HTML 4.0. IDL Definition interface HTMLLegendElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute wstring align; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. align Text alignment relative to FIELDSET. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLUListElement Unordered list. See the UL element definition in HTML 4.0. IDL Definition interface HTMLUListElement : HTMLElement { attribute boolean compact; attribute wstring type; }; Attributes compact Reduce spacing between list items. See the compact attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. type Bullet style. See the type attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLOListElement Ordered list. See the OL element definition in HTML 4.0. IDL Definition interface HTMLOListElement : HTMLElement { attribute boolean compact; attribute long start; attribute wstring type; }; Attributes compact Reduce spacing between list items. See the compact attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. start Starting sequence number. See the start attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. type Numbering style. See the type attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLDListElement Definition list. See the DL element definition in HTML 4.0. IDL Definition interface HTMLDListElement : HTMLElement { attribute boolean compact; }; Attributes compact Reduce spacing between list items. See the compact attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLDirectoryElement Directory list. See the DIR element definition in HTML 4.0. This element is deprecated in HTML 4.0. IDL Definition interface HTMLDirectoryElement : HTMLElement { attribute boolean compact; }; Attributes compact Reduce spacing between list items. See the compact attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLMenuElement Menu list. See the MENU element definition in HTML 4.0. This element is deprecated in HTML 4.0. IDL Definition interface HTMLMenuElement : HTMLElement { attribute boolean compact; }; Attributes compact Reduce spacing between list items. See the compact attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLLIElement List item. See the LI element definition in HTML 4.0. IDL Definition interface HTMLLIElement : HTMLElement { attribute wstring type; attribute long value; }; Attributes type List item bullet style. See the type attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. value Reset sequence number when used in OL See the value attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLBlockquoteElement ??? See the BLOCKQUOTE element definition in HTML 4.0. IDL Definition interface HTMLBlockquoteElement : HTMLElement { attribute wstring cite; }; Attributes cite A URI designating a document that describes the reason for the change. See the cite attribute definition in HTML 4.0. Interface HTMLDivElement Generic block container. See the DIV element definition in HTML 4.0. IDL Definition interface HTMLDivElement : HTMLElement { attribute wstring align; }; Attributes align Horizontal text alignment. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLParagraphElement Paragraphs. See the P element definition in HTML 4.0. IDL Definition interface HTMLParagraphElement : HTMLElement { attribute wstring align; }; Attributes align Horizontal text alignment. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLHeadingElement For the H1 to H6 elements. See the H1 element definition in HTML 4.0. IDL Definition interface HTMLHeadingElement : HTMLElement { attribute wstring align; }; Attributes align Horizontal text alignment. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLQuoteElement For the Q and BLOCKQUOTE elements. See the Q element definition in HTML 4.0. IDL Definition interface HTMLQuoteElement : HTMLElement { attribute wstring cite; }; Attributes cite A URI designating a document that designates a source document or message. See the cite attribute definition in HTML 4.0. Interface HTMLPreElement Preformatted text. See the PRE element definition in HTML 4.0. IDL Definition interface HTMLPreElement : HTMLElement { attribute long width; }; Attributes width Fixed width for content. See the width attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLBRElement Force a line break. See the BR element definition in HTML 4.0. IDL Definition interface HTMLBRElement : HTMLElement { attribute wstring clear; }; Attributes clear Control flow of text around floats. See the clear attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLBaseFontElement Base font. See the BASEFONT element definition in HTML 4.0. This element is deprecated in HTML 4.0. IDL Definition interface HTMLBaseFontElement : HTMLElement { attribute wstring color; attribute wstring face; attribute wstring size; }; Attributes color Font color. See the color attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. face Font face identifier. See the face attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. size Font size. See the size attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLFontElement Local change to font. See the FONT element definition in HTML 4.0. This element is deprecated in HTML 4.0. IDL Definition interface HTMLFontElement : HTMLElement { attribute wstring color; attribute wstring face; attribute wstring size; }; Attributes color Font color. See the color attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. face Font face identifier. See the face attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. size Font size. See the size attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLHRElement Create a horizontal rule. See the HR element definition in HTML 4.0. IDL Definition interface HTMLHRElement : HTMLElement { attribute wstring align; attribute boolean noShade; attribute wstring size; attribute wstring width; }; Attributes align Align the rule on the page. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. noShade Indicates to the user agent that there should be no shading in the rendering of this element. See the noshade attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. size The height of the rule. See the size attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. width The width of the rule. See the width attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLModElement Notice of modification to part of a document. See the INS and DEL element definitions in HTML 4.0. IDL Definition interface HTMLModElement : HTMLElement { attribute wstring cite; attribute wstring dateTime; }; Attributes cite A URI designating a document that describes the reason for the change. See the cite attribute definition in HTML 4.0. dateTime The date and time of the change. See the datetime attribute definition in HTML 4.0. Interface HTMLAnchorElement The anchor element. See the A element definition in HTML 4.0. IDL Definition interface HTMLAnchorElement : HTMLElement { attribute wstring accessKey; attribute wstring charset; attribute wstring coords; attribute wstring href; attribute wstring hreflang; attribute wstring name; attribute wstring rel; attribute wstring rev; attribute wstring shape; attribute long tabIndex; attribute wstring target; attribute wstring type; void blur(); void focus(); }; Attributes accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. charset The character encoding of the linked resource. See the charset attribute definition in HTML 4.0. coords Comma-separated list of lengths, defining an active region geometry. See also shape for the shape of the region. See the coords attribute definition in HTML 4.0. href The URI of the linked resource. See the href attribute definition in HTML 4.0. hreflang Language code of the linked resource. See the hreflang attribute definition in HTML 4.0. name Anchor name. See the name attribute definition in HTML 4.0. rel Forward link type. See the rel attribute definition in HTML 4.0. rev Reverse link type. See the rev attribute definition in HTML 4.0. shape The shape of the active area. The coordinates are given by coords. See the shape attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. target Frame to render the resource in. See the target attribute definition in HTML 4.0. type Advisory content type. See the type attribute definition in HTML 4.0. Methods blur Removes keyboard focus from this element. This method has no parameters. This method returns nothing. This method raises no exceptions. focus Gives keyboard focus to this element. This method has no parameters. This method returns nothing. This method raises no exceptions. Interface HTMLImageElement Embedded image. See the IMG element definition in HTML 4.0. IDL Definition interface HTMLImageElement : HTMLElement { attribute wstring lowSrc; attribute wstring name; attribute wstring align; attribute wstring alt; attribute wstring border; attribute wstring height; attribute wstring hspace; attribute boolean isMap; attribute wstring longDesc; attribute wstring src; attribute wstring useMap; attribute wstring vspace; attribute wstring width; }; Attributes lowSrc URI designating the source of this image, for low-resolution output. name The name of the element (for backwards compatibility). align Aligns this object (vertically or horizontally) with respect to its surrounding text. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. alt Alternate text for user agents not rendering the normal content of this element. See the alt attribute definition in HTML 4.0. border Width of border around image. See the border attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. height Override height. See the height attribute definition in HTML 4.0. hspace Horizontal space to the left and right of this image. See the hspace attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. isMap Use server-side image map. See the ismap attribute definition in HTML 4.0. longDesc URI designating a long description of this image or frame. See the longdesc attribute definition in HTML 4.0. src URI designating the source of this image. See the src attribute definition in HTML 4.0. useMap Use client-side image map. See the usemap attribute definition in HTML 4.0. vspace Vertical space above and below this image. See the vspace attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. width Override width. See the width attribute definition in HTML 4.0. Interface HTMLObjectElement Generic embedded object. Note. In principle, all properties on the object element are read-write but in some environments some properties may be read-only once the underlying object is instantiated. See the OBJECT element definition in HTML 4.0. IDL Definition interface HTMLObjectElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring code; attribute wstring align; attribute wstring archive; attribute wstring border; attribute wstring codeBase; attribute wstring codeType; attribute wstring data; attribute boolean declare; attribute wstring height; attribute wstring hspace; attribute wstring name; attribute wstring standby; attribute long tabIndex; attribute wstring type; attribute wstring useMap; attribute wstring vspace; attribute wstring width; }; Attributes form Returns the FORM element containing this control. Returns null if this control is not within the context of a form. code Applet class file. See the code attribute for HTMLAppletElement. align Aligns this object (vertically or horizontally) with respect to its surrounding text. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. archive Space-separated list of archives. See the archive attribute definition in HTML 4.0. border Width of border around the object. See the border attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. codeBase Base URI for classid, data, and archive attributes. See the codebase attribute definition in HTML 4.0. codeType Content type for data downloaded via classid attribute. See the codetype attribute definition in HTML 4.0. data A URI specifying the location of the object's data. See the data attribute definition in HTML 4.0. declare Declare (for future reference), but do not instantiate, this object. See the declare attribute definition in HTML 4.0. height Override height. See the height attribute definition in HTML 4.0. hspace Horizontal space to the left and right of this image, applet, or object. See the hspace attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. name Form control or object name when submitted with a form. See the name attribute definition in HTML 4.0. standby Message to render while loading the object. See the standby attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. type Content type for data downloaded via data attribute. See the type attribute definition in HTML 4.0. useMap Use client-side image map. See the usemap attribute definition in HTML 4.0. vspace Vertical space above and below this image, applet, or object. See the vspace attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. width Override width. See the width attribute definition in HTML 4.0. Interface HTMLParamElement Parameters fed to the OBJECT element. See the PARAM element definition in HTML 4.0. IDL Definition interface HTMLParamElement : HTMLElement { attribute wstring name; attribute wstring type; attribute wstring value; attribute wstring valueType; }; Attributes name The name of a run-time parameter. See the name attribute definition in HTML 4.0. type Content type for the value attribute when valuetype has the value "ref". See the type attribute definition in HTML 4.0. value The value of a run-time parameter. See the value attribute definition in HTML 4.0. valueType Information about the meaning of the value attribute value. See the valuetype attribute definition in HTML 4.0. Interface HTMLAppletElement An embedded Java applet. See the APPLET element definition in HTML 4.0. This element is deprecated in HTML 4.0. IDL Definition interface HTMLAppletElement : HTMLElement { attribute wstring align; attribute wstring alt; attribute wstring archive; attribute wstring code; attribute wstring codeBase; attribute wstring height; attribute wstring hspace; attribute wstring name; attribute wstring object; attribute wstring vspace; attribute wstring width; }; Attributes align Aligns this object (vertically or horizontally) with respect to its surrounding text. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. alt Alternate text for user agents not rendering the normal content of this element. See the alt attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. archive Comma-separated archive list. See the archive attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. code Applet class file. See the code attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. codeBase Optional base URI for applet. See the codebase attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. height Override height. See the height attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. hspace Horizontal space to the left and right of this image, applet, or object. See the hspace attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. name The name of the applet. See the name attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. object Serialized applet file. See the object attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. vspace Vertical space above and below this image, applet, or object. See the vspace attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. width Override width. See the width attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLMapElement Client-side image map. See the MAP element definition in HTML 4.0. IDL Definition interface HTMLMapElement : HTMLElement { readonly attribute HTMLCollection areas; attribute wstring name; }; Attributes areas The list of areas defined for the image map. name Names the map (for use with usemap). See the name attribute definition in HTML 4.0. Interface HTMLAreaElement Client-side image map area definition. See the AREA element definition in HTML 4.0. IDL Definition interface HTMLAreaElement : HTMLElement { attribute wstring accessKey; attribute wstring alt; attribute wstring coords; attribute wstring href; attribute boolean noHref; attribute wstring shape; attribute long tabIndex; attribute wstring target; }; Attributes accessKey A single character access key to give access to the form control. See the accesskey attribute definition in HTML 4.0. alt Alternate text for user agents not rendering the normal content of this element. See the alt attribute definition in HTML 4.0. coords Comma-separated list of lengths, defining an active region geometry. See also shape for the shape of the region. See the coords attribute definition in HTML 4.0. href The URI of the linked resource. See the href attribute definition in HTML 4.0. noHref Specifies that this area is inactive, i.e., has no associated action. See the nohref attribute definition in HTML 4.0. shape The shape of the active area. The coordinates are given by coords. See the shape attribute definition in HTML 4.0. tabIndex Index that represents the element's position in the tabbing order. See the tabindex attribute definition in HTML 4.0. target Frame to render the resource in. See the target attribute definition in HTML 4.0. Interface HTMLScriptElement Script statements. See the SCRIPT element definition in HTML 4.0. IDL Definition interface HTMLScriptElement : HTMLElement { attribute wstring text; attribute wstring htmlFor; attribute wstring event; attribute wstring charset; attribute boolean defer; attribute wstring src; attribute wstring type; }; Attributes text The script content of the element. htmlFor Reserved for future use. event Reserved for future use. charset The character encoding of the linked resource. See the charset attribute definition in HTML 4.0. defer Indicates that the user agent can defer processing of the script. See the defer attribute definition in HTML 4.0. src URI designating an external script. See the src attribute definition in HTML 4.0. type The content type of the script language. See the type attribute definition in HTML 4.0. Interface HTMLTableElement The create* and delete* methods on the table allow authors to construct and modify tables. HTML 4.0 specifies that only one of each of the CAPTION, THEAD, and TFOOT elements may exist in a table. Therefore, if one exists, and the createTHead() or createTFoot() method is called, the method returns the existing THead or TFoot element. See the TABLE element definition in HTML 4.0. IDL Definition interface HTMLTableElement : HTMLElement { attribute HTMLTableCaptionElement caption; attribute HTMLTableSectionElement tHead; attribute HTMLTableSectionElement tFoot; readonly attribute HTMLCollection rows; attribute HTMLCollection tBodies; attribute wstring align; attribute wstring bgColor; attribute wstring border; attribute wstring cellPadding; attribute wstring cellSpacing; attribute wstring frame; attribute wstring rules; attribute wstring summary; attribute wstring width; HTMLElement createTHead(); void deleteTHead(); HTMLElement createTFoot(); void deleteTFoot(); HTMLElement createCaption(); void deleteCaption(); HTMLElement insertRow(in long index); void deleteRow(in long index); }; Attributes caption Returns the table's CAPTION, or void if none exists. tHead Returns the table's THEAD, or void if none exists. tFoot Returns the table's TFOOT, or void if none exists. rows Returns a collection of all rows of the table. tBodies Returns a collection of the defined table bodies. align Specifies the table's position with respect to the rest of the document. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. bgColor Cell background color. See the bgcolor attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. border The width of the border around the table. See the border attribute definition in HTML 4.0. cellPadding Specifies the horizontal and vertical space between cell content and cell borders. See the cellpadding attribute definition in HTML 4.0. cellSpacing Specifies the horizontal and vertical separation between cells. See the cellspacing attribute definition in HTML 4.0. frame Specifies which external table borders to render. See the frame attribute definition in HTML 4.0. rules Specifies which internal table borders to render. See the rules attribute definition in HTML 4.0. summary Supplementary description about the purpose or structure of a table. See the summary attribute definition in HTML 4.0. width Specifies the desired table width. See the width attribute definition in HTML 4.0. Methods createTHead Create a table header row or return an existing one. Return Values A new table header element (THEAD). This method has no parameters. This method raises no exceptions. deleteTHead Delete the header from the table, if one exists. This method has no parameters. This method returns nothing. This method raises no exceptions. createTFoot Create a table footer row or return an existing one. Return Values A footer element (TFOOT). This method has no parameters. This method raises no exceptions. deleteTFoot Delete the footer from the table, if one exists. This method has no parameters. This method returns nothing. This method raises no exceptions. createCaption Create a new table caption object or return an existing one. Return Values A CAPTION element. This method has no parameters. This method raises no exceptions. deleteCaption Delete the table caption, if one exists. This method has no parameters. This method returns nothing. This method raises no exceptions. insertRow Insert a new empty row in the table. Note. A table row cannot be empty according to HTML 4.0 Recommendation. Parameters index The row number where to insert a new row. Return Values The newly created row. This method raises no exceptions. deleteRow Delete a table row. Parameters index The index of the row to be deleted. This method returns nothing. This method raises no exceptions. Interface HTMLTableCaptionElement Table caption See the CAPTION element definition in HTML 4.0. IDL Definition interface HTMLTableCaptionElement : HTMLElement { attribute wstring align; }; Attributes align Caption alignment with respect to the table. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLTableColElement Regroups the COL and COLGROUP elements. See the COL element definition in HTML 4.0. IDL Definition interface HTMLTableColElement : HTMLElement { attribute wstring align; attribute wstring ch; attribute wstring chOff; attribute long span; attribute wstring vAlign; attribute wstring width; }; Attributes align Horizontal alignment of cell data in column. See the align attribute definition in HTML 4.0. ch Alignment character for cells in a column. See the char attribute definition in HTML 4.0. chOff Offset of alignment character. See the charoff attribute definition in HTML 4.0. span Indicates the number of columns in a group or affected by a grouping. See the span attribute definition in HTML 4.0. vAlign Vertical alignment of cell data in column. See the valign attribute definition in HTML 4.0. width Default column width. See the width attribute definition in HTML 4.0. Interface HTMLTableSectionElement The THEAD, TFOOT, and TBODY elements. IDL Definition interface HTMLTableSectionElement : HTMLElement { attribute wstring align; attribute wstring ch; attribute wstring chOff; attribute wstring vAlign; attribute HTMLCollection rows; HTMLElement insertRow(in long index); void deleteRow(in long index); }; Attributes align Horizontal alignment of data in cells. See the align attribute for HTMLTheadElement for details. ch Alignment character for cells in a column. See the char attribute definition in HTML 4.0. chOff Offset of alignment character. See the charoff attribute definition in HTML 4.0. vAlign Vertical alignment of data in cells. See the valign attribute for HTMLTheadElement for details. rows The collection of rows in this table section. Methods insertRow Insert a row into this section. Parameters index The row number where to insert a new row. Return Values The newly created row. This method raises no exceptions. deleteRow Delete a row from this section. Parameters index The index of the row to be deleted. This method returns nothing. This method raises no exceptions. Interface HTMLTableRowElement A row in a table. See the TR element definition in HTML 4.0. IDL Definition interface HTMLTableRowElement : HTMLElement { attribute long rowIndex; attribute long sectionRowIndex; attribute HTMLCollection cells; attribute wstring align; attribute wstring bgColor; attribute wstring ch; attribute wstring chOff; attribute wstring vAlign; HTMLElement insertCell(in long index); void deleteCell(in long index); }; Attributes rowIndex The index of this row, relative to the entire table. sectionRowIndex The index of this row, relative to the current section (THEAD, TFOOT, or TBODY). cells The collection of cells in this row. align Horizontal alignment of data within cells of this row. See the align attribute definition in HTML 4.0. bgColor Background color for rows. See the bgcolor attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. ch Alignment character for cells in a column. See the char attribute definition in HTML 4.0. chOff Offset of alignment character. See the charoff attribute definition in HTML 4.0. vAlign Vertical alignment of data within cells of this row. See the valign attribute definition in HTML 4.0. Methods insertCell Insert an empty cell into this row. Parameters index The place to insert the cell. Return Values The newly created cell. This method raises no exceptions. deleteCell Delete a cell from the current row. Parameters index The index of the cell to delete. This method returns nothing. This method raises no exceptions. Interface HTMLTableCellElement The object used to represent the TH and TD elements. See the TD element definition in HTML 4.0. IDL Definition interface HTMLTableCellElement : HTMLElement { attribute long cellIndex; attribute wstring abbr; attribute wstring align; attribute wstring axis; attribute wstring bgColor; attribute wstring ch; attribute wstring chOff; attribute long colSpan; attribute wstring headers; attribute wstring height; attribute boolean noWrap; attribute long rowSpan; attribute wstring scope; attribute wstring vAlign; attribute wstring width; }; Attributes cellIndex The index of this cell in the row. abbr Abbreviation for header cells. See the abbr attribute definition in HTML 4.0. align Horizontal alignment of data in cell. See the align attribute definition in HTML 4.0. axis Names group of related headers. See the axis attribute definition in HTML 4.0. bgColor Cell background color. See the bgcolor attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. ch Alignment character for cells in a column. See the char attribute definition in HTML 4.0. chOff Offset of alignment character. See the charoff attribute definition in HTML 4.0. colSpan Number of columns spanned by cell. See the colspan attribute definition in HTML 4.0. headers List of id attribute values for header cells. See the headers attribute definition in HTML 4.0. height Cell height. See the height attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. noWrap Suppress word wrapping. See the nowrap attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. rowSpan Number of rows spanned by cell. See the rowspan attribute definition in HTML 4.0. scope Scope covered by header cells. See the scope attribute definition in HTML 4.0. vAlign Vertical alignment of data in cell. See the valign attribute definition in HTML 4.0. width Cell width. See the width attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. Interface HTMLFrameSetElement Create a grid of frames. See the FRAMESET element definition in HTML 4.0. IDL Definition interface HTMLFrameSetElement : HTMLElement { attribute wstring cols; attribute wstring rows; }; Attributes cols The number of columns of frames in the frameset. See the cols attribute definition in HTML 4.0. rows The number of rows of frames in the frameset. See the rows attribute definition in HTML 4.0. Interface HTMLFrameElement Create a frame. See the FRAME element definition in HTML 4.0. IDL Definition interface HTMLFrameElement : HTMLElement { attribute wstring frameBorder; attribute wstring longDesc; attribute wstring marginHeight; attribute wstring marginWidth; attribute wstring name; attribute boolean noResize; attribute wstring scrolling; attribute wstring src; }; Attributes frameBorder Request frame borders. See the frameborder attribute definition in HTML 4.0. longDesc URI designating a long description of this image or frame. See the longdesc attribute definition in HTML 4.0. marginHeight Frame margin height, in pixels. See the marginheight attribute definition in HTML 4.0. marginWidth Frame margin width, in pixels. See the marginwidth attribute definition in HTML 4.0. name The frame name (object of the target attribute). See the name attribute definition in HTML 4.0. noResize When true, forbid user from resizing frame. See the noresize attribute definition in HTML 4.0. scrolling Specify whether or not the frame should have scrollbars. See the scrolling attribute definition in HTML 4.0. src A URI designating the initial frame contents. See the src attribute definition in HTML 4.0. Interface HTMLIFrameElement Inline subwindows. See the IFRAME element definition in HTML 4.0. IDL Definition interface HTMLIFrameElement : HTMLElement { attribute wstring align; attribute wstring frameBorder; attribute wstring height; attribute wstring longDesc; attribute wstring marginHeight; attribute wstring marginWidth; attribute wstring name; attribute wstring scrolling; attribute wstring src; attribute wstring width; }; Attributes align Aligns this object (vertically or horizontally) with respect to its surrounding text. See the align attribute definition in HTML 4.0. This attribute is deprecated in HTML 4.0. frameBorder Request frame borders. See the frameborder attribute definition in HTML 4.0. height Frame height. See the height attribute definition in HTML 4.0. longDesc URI designating a long description of this image or frame. See the longdesc attribute definition in HTML 4.0. marginHeight Frame margin height, in pixels. See the marginheight attribute definition in HTML 4.0. marginWidth Frame margin width, in pixels. See the marginwidth attribute definition in HTML 4.0. name The frame name (object of the target attribute). See the name attribute definition in HTML 4.0. scrolling Specify whether or not the frame should have scrollbars. See the scrolling attribute definition in HTML 4.0. src A URI designating the initial frame contents. See the src attribute definition in HTML 4.0. width Frame width. See the width attribute definition in HTML 4.0. Appendix A: Contributors Members of the DOM Working Group and Interest Group contributing to this specification were: Editors Lauren Wood, SoftQuad, Inc., chair Arnaud Le Hors, W3C, W3C staff contact Andrew Watson, Object Management Group Bill Smith, Sun Chris Lovett, Microsoft Chris Wilson, Microsoft David Brownell, Sun David Singer, IBM Don Park, invited Eric Vasilik, Microsoft Gavin Nicol, INSO Ian Jacobs, W3C James Clark, invited Jared Sorensen, Novell Jonathan Robie, Texcel Mike Champion, ArborText Paul Grosso, ArborText Peter Sharpe, SoftQuad, Inc. Phil Karlton, Netscape Ray Whitmer, iMall Rich Rollman, Microsoft Rick Gessner, Netscape Robert Sutor, IBM Scott Isaacs, Microsoft Sharon Adler, INSO Steve Byrne, JavaSoft Tim Bray, invited Tom Pixley, Netscape Vidur Apparao, Netscape Appendix B: Glossary Editors Robert S. Sutor, IBM Research Several of the following term definitions have been borrowed or modified from similar definitions in other W3C or standards documents. See the links within the definitions for more information. ancestor An ancestor node of any node A is any node above A in a tree model of a document, where "above" means "toward the root." API An API is an application programming interface, a set of functions or methods used to access some functionality. child A child is an immediate descendant node of a node. client application A [client] application is any software that uses the Document Object Model programming interfaces provided by the hosting implementation to accomplish useful work. Some examples of client applications are scripts within an HTML or XML document. COM COM is Microsoft's Component Object Model, a technology for building applications from binary software components. content model The content model is a simple grammar governing the allowed types of the child elements and the order in which they appear. See [XML ] context A context specifies an access pattern (or path): a set of interfaces which give you a way to interact with a model. For example, imagine a model with different colored arcs connecting data nodes. A context might be a sheet of colored acetate that is placed over the model allowing you a partial view of the total information in the model. convenience A convenience method is an operation on an object that could be accomplished by a program consisting of more basic operations on the object. Convenience methods are usually provided to make the API easier and simpler to use or to allow specific programs to create more optimized implementations for common operations. A similar definition holds for a convenience property. cooked model A model for a document that represents the document after it has been manipulated in some way. For example, any combination of any of the following transformations would create a cooked model: 1. Expansion of internal text entities. 2. Expansion of external entities. 3. Model augmentation with style-specified generated text. 4. Execution of style-specified reordering. 5. Execution of scripts. A browser might only be able to provide access to a cooked model, while an editor might provide access to a cooked or the initial structure model (also known as the uncooked model) for a document. CORBA CORBA is the Common Object Request Broker Architecture from the OMG . This architecture is a collection of objects and libraries that allow the creation of applications containing objects that make and receive requests and responses in a distributed environment. cursor A cursor is an object representation of a node. It may possess information about context and the path traversed to reach the node. data model A data model is a collection of descriptions of data structures and their contained fields, together with the operations or functions that manipulate them. deprecation When new releases of specifications are released, some older features may be marked as being deprecated. This means that new work should not use the features and that although they are supported in the current release, they may not be supported or available in future releases. descendant A descendant node of any node A is any node below A in a tree model of a document, where "above" means "toward the root." ECMAScript The programming language defined by the ECMA-262 standard. As stated in the standard, the originating technology for ECMAScript was JavaScript. Note that in the ECMAScript binding, the word "property" is used in the same sense as the IDL term "attribute." element Each document contains one or more elements, the boundaries of which are either delimited by start-tags and end-tags, or, for empty elements by an empty-element tag. Each element has a type, identified by name, and may have a set of attributes. Each attribute has a name and a value. [XML ] event propagation, also known as event bubbling This is the idea that an event can affect one object and a set of related objects. Any of the potentially affected objects can block the event or substitute a different one (upward event propagation). The event is broadcast from the node at which it originates to every parent node. equivalence Two nodes are equivalent if they have the same node type and same node name. Also, if the nodes contain data, that must be the same. Finally, if the nodes have attributes then collection of attribute names must be the same and the attributes corresponding by name must be equivalent as nodes. Two nodes are deeply equivalent if they are equivalent, the child node lists are equivalent are equivalent as NodeList objects, and the pairs of equivalent attributes must in fact be deeply equivalent. Two NodeList objects are equivalent if they have the same length, and the nodes corresponding by index are deeply equivalent. Two NamedNodeMap objects are equivalent if they are have the same length, they have same collection of names, and the nodes corresponding by name in the maps are deeply equivalent. Two DocumentType nodes are equivalent if they are equivalent as nodes, have the same names, and have equivalent entities and attributes NamedNodeMap objects. hosting implementation A [hosting] implementation is a software module that provides an implementation of the DOM interfaces so that a client application can use them. Some examples of hosting implementations are browsers, editors and document repositories. HTML The HyperText Markup Language (HTML) is a simple markup language used to create hypertext documents that are portable from one platform to another. HTML documents are SGML documents with generic semantics that are appropriate for representing information from a wide range of applications. [HTML 3.2 ] [HTML4.0 ] IDL An Interface Definition Language (IDL) is used to define the interfaces for accessing and operating upon objects. Examples of IDLs are the Object Management Group's IDL , Microsoft's IDL , and Sun's Java IDL . implementor Companies, organizations, and individuals that claim to support the Document Object Model as an API for their products. inheritance In object-oriented programming, the ability to create new classes (or interfaces) that contain all the methods and properties of another class (or interface), plus additional methods and properties. If class (or interface) D inherits from class (or interface) B, then D is said to be derived from B. B is said to be a base class (or interface) for D. Some programming languages allow for multiple inheritance, that is, inheritance from more than one class or interface. initial structure model Also known as the raw structure model or the uncooked model, this represents the document before it has been modified by entity expansions, generated text, style-specified reordering, or the execution of scripts. In some implementations, this might correspond to the "initial parse tree" for the document, if it ever exists. Note that a given implementation might not be able to provide access to the initial structure model for a document, though an editor probably would. interface An interface is a declaration of a set of methods with no information given about their implementation. In object systems that support interfaces and inheritance, interfaces can usually inherit from one another. language binding A programming language binding for an IDL specification is an implementation of the interfaces in the specification for the given language. For example, a Java language binding for the Document Object Model IDL specification would implement the concrete Java classes that provide the functionality exposed by the interfaces. method A method is an operation or function that is associated with an object and is allowed to manipulate the object's data. model A model is the actual data representation for the information at hand. Examples are the structural model and the style model representing the parse structure and the style information associated with a document. The model might be a tree, or a directed graph, or something else. object model An object model is a collection of descriptions of classes or interfaces, together with their member data, member functions, and class-static operations. parent A parent is an immediate ancestor node of a node. root node The root node is the unique node that is not a child of any other node. All other nodes are children or other descendents of the root node. [XML ] sibling Two nodes are siblings if they have the same parent node. string comparison When string matching is required, it is to occur as though the comparison was between 2 sequences of code points from the Unicode 2.0 standard. tag valid document A document is tag valid if all begin and end tags are properly balanced and nested. type valid document A document is type valid if it conforms to an explicit DTD. uncooked model See initial structure model. well-formed document A document is well-formed if it is tag valid and entities are limited to single elements (i.e., single sub-trees). XML Extensible Markup Language (XML) is an extremely simple dialect of SGML which is completely described in this document. The goal is to enable generic SGML to be served, received, and processed on the Web in the way that is now possible with HTML. XML has been designed for ease of implementation and for interoperability with both SGML and HTML. [XML ] Appendix C: IDL Definitions This appendix contains the complete OMG IDL for the Level 1 Document Object Model definitions. The definitions are divided into Core and HTML. The IDL files are also available as: http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/idl.zip C.1: Document Object Model Level 1 Core This section contains the OMG IDL definitions for the interfaces in the Core Document Object Model specification, including the extended (XML) interfaces. enum ExceptionCode { INDEX_SIZE_ERR, WSTRING_SIZE_ERR, HIERARCHY_REQUEST_ERR, WRONG_DOCUMENT_ERR, INVALID_NAME_ERR, NO_DATA_ALLOWED_ERR, NO_MODIFICATION_ALLOWED_ERR, NOT_FOUND_ERR, NOT_SUPPORTED_ERR, INUSE_ATTRIBUTE_ERR }; exception DOMException { ExceptionCode code; }; interface DOMImplementation { boolean hasFeature(in wstring feature, in wstring version); }; interface DocumentFragment : Node { }; interface Document : Node { readonly attribute DocumentType doctype; readonly attribute DOMImplementation implementation; readonly attribute Element documentElement; Element createElement(in wstring tagName) raises(DOMException); DocumentFragment createDocumentFragment(); Text createTextNode(in wstring data); Comment createComment(in wstring data); CDATASection createCDATASection(in wstring data) raises(DOMException); ProcessingInstruction createProcessingInstruction(in wstring target, in wstring data) raises(DOMException); Attribute createAttribute(in wstring name) raises(DOMException); EntityReference createEntityReference(in wstring name) raises(DOMException); NodeList getElementsByTagName(in wstring tagname); }; interface Node { // NodeType const unsigned short ELEMENT_NODE = 1; const unsigned short ATTRIBUTE_NODE = 2; const unsigned short TEXT_NODE = 3; const unsigned short CDATA_SECTION_NODE = 4; const unsigned short ENTITY_REFERENCE_NODE = 5; const unsigned short ENTITY_NODE = 6; const unsigned short PROCESSING_INSTRUCTION_NODE = 7; const unsigned short COMMENT_NODE = 8; const unsigned short DOCUMENT_NODE = 9; const unsigned short DOCUMENT_TYPE_NODE = 10; const unsigned short DOCUMENT_FRAGMENT_NODE = 11; const unsigned short NOTATION_NODE = 12; readonly attribute wstring nodeName; attribute wstring nodeValue; readonly attribute unsigned short nodeType; readonly attribute Node parentNode; readonly attribute NodeList childNodes; readonly attribute Node firstChild; readonly attribute Node lastChild; readonly attribute Node previousSibling; readonly attribute Node nextSibling; readonly attribute NamedNodeMap attributes; readonly attribute Document ownerDocument; Node insertBefore(in Node newChild, in Node refChild) raises(DOMException); Node replaceChild(in Node newChild, in Node oldChild) raises(DOMException); Node removeChild(in Node oldChild) raises(DOMException); Node appendChild(in Node newChild) raises(DOMException); boolean hasChildNodes(); Node cloneNode(in boolean deep); }; interface NodeList { Node item(in unsigned long index); readonly attribute unsigned long length; }; interface NamedNodeMap { Node getNamedItem(in wstring name); Node setNamedItem(in Node arg) raises(DOMException); Node removeNamedItem(in wstring name) raises(DOMException); Node item(in unsigned long index); readonly attribute unsigned long length; }; interface CharacterData : Node { attribute wstring data; readonly attribute unsigned long length; wstring substringData(in unsigned long offset, in unsigned long count) raises(DOMException); void appendData(in wstring arg) raises(DOMException); void insertData(in unsigned long offset, in wstring arg) raises(DOMException); void deleteData(in unsigned long offset, in unsigned long count) raises(DOMException); void replaceData(in unsigned long offset, in unsigned long count, in wstring arg) raises(DOMException); }; interface Attribute : Node { readonly attribute wstring name; readonly attribute boolean specified; attribute wstring value; }; interface Element : Node { readonly attribute wstring tagName; wstring getAttribute(in wstring name); void setAttribute(in wstring name, in wstring value) raises(DOMException); void removeAttribute(in wstring name) raises(DOMException); Attribute getAttributeNode(in wstring name); Attribute setAttributeNode(in Attribute newAttr) raises(DOMException); Attribute removeAttributeNode(in Attribute oldAttr) raises(DOMException); NodeList getElementsByTagName(in wstring name); void normalize(); }; interface Text : CharacterData { Text splitText(in unsigned long offset) raises(DOMException); }; interface Comment : CharacterData { }; interface ProcessingInstruction : Node { readonly attribute wstring target; attribute wstring data; }; interface CDATASection : Text { }; interface DocumentType : Node { readonly attribute wstring name; readonly attribute NamedNodeMap entities; readonly attribute NamedNodeMap notations; }; interface Notation : Node { readonly attribute wstring publicId; readonly attribute wstring systemId; }; interface Entity : Node { readonly attribute wstring publicId; readonly attribute wstring systemId; readonly attribute wstring notationName; }; interface EntityReference : Node { }; C.2: Document Object Model Level 1 HTML interface HTMLCollection { readonly attribute unsigned long length; Node item(in unsigned long index); Node namedItem(in wstring name); }; interface HTMLDocument : Document { attribute wstring title; readonly attribute wstring referrer; readonly attribute wstring domain; readonly attribute wstring URL; attribute HTMLElement body; readonly attribute HTMLCollection images; readonly attribute HTMLCollection applets; readonly attribute HTMLCollection links; readonly attribute HTMLCollection forms; readonly attribute HTMLCollection anchors; attribute wstring cookie; void open(); void close(); void write(in wstring text); void writeln(in wstring text); Element getElementById(in wstring elementId); NodeList getElementsByName(in wstring elementName); }; interface HTMLElement : Element { attribute wstring id; attribute wstring title; attribute wstring lang; attribute wstring dir; attribute wstring className; }; interface HTMLHtmlElement : HTMLElement { attribute wstring version; }; interface HTMLHeadElement : HTMLElement { attribute wstring profile; }; interface HTMLLinkElement : HTMLElement { attribute boolean disabled; attribute wstring charset; attribute wstring href; attribute wstring hreflang; attribute wstring media; attribute wstring rel; attribute wstring rev; attribute wstring target; attribute wstring type; }; interface HTMLTitleElement : HTMLElement { attribute wstring text; }; interface HTMLMetaElement : HTMLElement { attribute wstring content; attribute wstring httpEquiv; attribute wstring name; attribute wstring scheme; }; interface HTMLBaseElement : HTMLElement { attribute wstring href; attribute wstring target; }; interface HTMLIsIndexElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring prompt; }; interface HTMLStyleElement : HTMLElement { attribute boolean disabled; attribute wstring media; attribute wstring type; }; interface HTMLBodyElement : HTMLElement { attribute wstring aLink; attribute wstring background; attribute wstring bgColor; attribute wstring link; attribute wstring text; attribute wstring vLink; }; interface HTMLFormElement : HTMLElement { readonly attribute HTMLCollection elements; readonly attribute long length; attribute wstring name; attribute wstring acceptCharset; attribute wstring action; attribute wstring enctype; attribute wstring method; attribute wstring target; void submit(); void reset(); }; interface HTMLSelectElement : HTMLElement { readonly attribute wstring type; attribute long selectedIndex; attribute wstring value; attribute long length; readonly attribute HTMLFormElement form; attribute HTMLCollection options; attribute boolean disabled; attribute boolean multiple; attribute wstring name; attribute long size; attribute long tabIndex; void add(in HTMLElement element, in HTMLElement before); void remove(in long index); void blur(); void focus(); }; interface HTMLOptGroupElement : HTMLElement { attribute boolean disabled; attribute wstring label; }; interface HTMLOptionElement : HTMLElement { readonly attribute HTMLFormElement form; attribute boolean defaultSelected; readonly attribute wstring text; attribute long index; attribute boolean disabled; attribute wstring label; readonly attribute boolean selected; attribute wstring value; }; interface HTMLInputElement : HTMLElement { attribute wstring defaultValue; attribute boolean defaultChecked; readonly attribute HTMLFormElement form; attribute wstring accept; attribute wstring accessKey; attribute wstring align; attribute wstring alt; attribute boolean checked; attribute boolean disabled; attribute long maxLength; attribute wstring name; attribute boolean readOnly; attribute wstring size; attribute wstring src; attribute long tabIndex; readonly attribute wstring type; attribute wstring useMap; attribute wstring value; void blur(); void focus(); void select(); void click(); }; interface HTMLTextAreaElement : HTMLElement { attribute wstring defaultValue; readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute long cols; attribute boolean disabled; attribute wstring name; attribute boolean readOnly; attribute long rows; attribute long tabIndex; readonly attribute wstring type; void blur(); void focus(); void select(); }; interface HTMLButtonElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute boolean disabled; attribute wstring name; attribute long tabIndex; readonly attribute wstring type; attribute wstring value; }; interface HTMLLabelElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute wstring htmlFor; }; interface HTMLFieldSetElement : HTMLElement { readonly attribute HTMLFormElement form; }; interface HTMLLegendElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring accessKey; attribute wstring align; }; interface HTMLUListElement : HTMLElement { attribute boolean compact; attribute wstring type; }; interface HTMLOListElement : HTMLElement { attribute boolean compact; attribute long start; attribute wstring type; }; interface HTMLDListElement : HTMLElement { attribute boolean compact; }; interface HTMLDirectoryElement : HTMLElement { attribute boolean compact; }; interface HTMLMenuElement : HTMLElement { attribute boolean compact; }; interface HTMLLIElement : HTMLElement { attribute wstring type; attribute long value; }; interface HTMLBlockquoteElement : HTMLElement { attribute wstring cite; }; interface HTMLDivElement : HTMLElement { attribute wstring align; }; interface HTMLParagraphElement : HTMLElement { attribute wstring align; }; interface HTMLHeadingElement : HTMLElement { attribute wstring align; }; interface HTMLQuoteElement : HTMLElement { attribute wstring cite; }; interface HTMLPreElement : HTMLElement { attribute long width; }; interface HTMLBRElement : HTMLElement { attribute wstring clear; }; interface HTMLBaseFontElement : HTMLElement { attribute wstring color; attribute wstring face; attribute wstring size; }; interface HTMLFontElement : HTMLElement { attribute wstring color; attribute wstring face; attribute wstring size; }; interface HTMLHRElement : HTMLElement { attribute wstring align; attribute boolean noShade; attribute wstring size; attribute wstring width; }; interface HTMLModElement : HTMLElement { attribute wstring cite; attribute wstring dateTime; }; interface HTMLAnchorElement : HTMLElement { attribute wstring accessKey; attribute wstring charset; attribute wstring coords; attribute wstring href; attribute wstring hreflang; attribute wstring name; attribute wstring rel; attribute wstring rev; attribute wstring shape; attribute long tabIndex; attribute wstring target; attribute wstring type; void blur(); void focus(); }; interface HTMLImageElement : HTMLElement { attribute wstring lowSrc; attribute wstring name; attribute wstring align; attribute wstring alt; attribute wstring border; attribute wstring height; attribute wstring hspace; attribute boolean isMap; attribute wstring longDesc; attribute wstring src; attribute wstring useMap; attribute wstring vspace; attribute wstring width; }; interface HTMLObjectElement : HTMLElement { readonly attribute HTMLFormElement form; attribute wstring code; attribute wstring align; attribute wstring archive; attribute wstring border; attribute wstring codeBase; attribute wstring codeType; attribute wstring data; attribute boolean declare; attribute wstring height; attribute wstring hspace; attribute wstring name; attribute wstring standby; attribute long tabIndex; attribute wstring type; attribute wstring useMap; attribute wstring vspace; attribute wstring width; }; interface HTMLParamElement : HTMLElement { attribute wstring name; attribute wstring type; attribute wstring value; attribute wstring valueType; }; interface HTMLAppletElement : HTMLElement { attribute wstring align; attribute wstring alt; attribute wstring archive; attribute wstring code; attribute wstring codeBase; attribute wstring height; attribute wstring hspace; attribute wstring name; attribute wstring object; attribute wstring vspace; attribute wstring width; }; interface HTMLMapElement : HTMLElement { readonly attribute HTMLCollection areas; attribute wstring name; }; interface HTMLAreaElement : HTMLElement { attribute wstring accessKey; attribute wstring alt; attribute wstring coords; attribute wstring href; attribute boolean noHref; attribute wstring shape; attribute long tabIndex; attribute wstring target; }; interface HTMLScriptElement : HTMLElement { attribute wstring text; attribute wstring htmlFor; attribute wstring event; attribute wstring charset; attribute boolean defer; attribute wstring src; attribute wstring type; }; interface HTMLTableElement : HTMLElement { attribute HTMLTableCaptionElement caption; attribute HTMLTableSectionElement tHead; attribute HTMLTableSectionElement tFoot; readonly attribute HTMLCollection rows; attribute HTMLCollection tBodies; attribute wstring align; attribute wstring bgColor; attribute wstring border; attribute wstring cellPadding; attribute wstring cellSpacing; attribute wstring frame; attribute wstring rules; attribute wstring summary; attribute wstring width; HTMLElement createTHead(); void deleteTHead(); HTMLElement createTFoot(); void deleteTFoot(); HTMLElement createCaption(); void deleteCaption(); HTMLElement insertRow(in long index); void deleteRow(in long index); }; interface HTMLTableCaptionElement : HTMLElement { attribute wstring align; }; interface HTMLTableColElement : HTMLElement { attribute wstring align; attribute wstring ch; attribute wstring chOff; attribute long span; attribute wstring vAlign; attribute wstring width; }; interface HTMLTableSectionElement : HTMLElement { attribute wstring align; attribute wstring ch; attribute wstring chOff; attribute wstring vAlign; attribute HTMLCollection rows; HTMLElement insertRow(in long index); void deleteRow(in long index); }; interface HTMLTableRowElement : HTMLElement { attribute long rowIndex; attribute long sectionRowIndex; attribute HTMLCollection cells; attribute wstring align; attribute wstring bgColor; attribute wstring ch; attribute wstring chOff; attribute wstring vAlign; HTMLElement insertCell(in long index); void deleteCell(in long index); }; interface HTMLTableCellElement : HTMLElement { attribute long cellIndex; attribute wstring abbr; attribute wstring align; attribute wstring axis; attribute wstring bgColor; attribute wstring ch; attribute wstring chOff; attribute long colSpan; attribute wstring headers; attribute wstring height; attribute boolean noWrap; attribute long rowSpan; attribute wstring scope; attribute wstring vAlign; attribute wstring width; }; interface HTMLFrameSetElement : HTMLElement { attribute wstring cols; attribute wstring rows; }; interface HTMLFrameElement : HTMLElement { attribute wstring frameBorder; attribute wstring longDesc; attribute wstring marginHeight; attribute wstring marginWidth; attribute wstring name; attribute boolean noResize; attribute wstring scrolling; attribute wstring src; }; interface HTMLIFrameElement : HTMLElement { attribute wstring align; attribute wstring frameBorder; attribute wstring height; attribute wstring longDesc; attribute wstring marginHeight; attribute wstring marginWidth; attribute wstring name; attribute wstring scrolling; attribute wstring src; attribute wstring width; }; Appendix D: Java Language Binding This appendix contains the complete Java binding for the Level 1 Document Object Model. The definitions are divided into Core and HTML. The Java files are also available as http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/java-binding.zip D.1: Document Object Model Level 1 Core public static final int INDEX_SIZE_ERR= 1; public static final int WSTRING_SIZE_ERR= 2; public static final int HIERARCHY_REQUEST_ERR= 3; public static final int WRONG_DOCUMENT_ERR= 4; public static final int INVALID_NAME_ERR= 5; public static final int NO_DATA_ALLOWED_ERR= 6; public static final int NO_MODIFICATION_ALLOWED_ERR= 7; public static final int NOT_FOUND_ERR= 8; public static final int NOT_SUPPORTED_ERR= 9; public static final int INUSE_ATTRIBUTE_ERR= 10; public abstract class DOMException extends RuntimeException { public DOMException(int code, String message) { super(message); this.code = code; } public static final int INDEX_SIZE_ERR= 1; public static final int WSTRING_SIZE_ERR= 2; public static final int HIERARCHY_REQUEST_ERR= 3; public static final int WRONG_DOCUMENT_ERR= 4; public static final int INVALID_NAME_ERR= 5; public static final int NO_DATA_ALLOWED_ERR= 6; public static final int NO_MODIFICATION_ALLOWED_ERR= 7; public static final int NOT_FOUND_ERR= 8; public static final int NOT_SUPPORTED_ERR= 9; public static final int INUSE_ATTRIBUTE_ERR= 10; public int code; } public interface DOMImplementation { public boolean hasFeature(String feature, String version); } public interface DocumentFragment extends Node { } public interface Document extends Node { public DocumentType getDoctype(); public DOMImplementation getImplementation(); public Element getDocumentElement(); public Element createElement(String tagName) throws DOMException; public DocumentFragment createDocumentFragment(); public Text createTextNode(String data); public Comment createComment(String data); public CDATASection createCDATASection(String data) throws DOMException; public ProcessingInstruction createProcessingInstruction(String target, String data) throws DOMException; public Attribute createAttribute(String name) throws DOMException; public EntityReference createEntityReference(String name) throws DOMException; public NodeList getElementsByTagName(String tagname); } public interface Node { // NodeType public static final short ELEMENT_NODE = 1; public static final short ATTRIBUTE_NODE = 2; public static final short TEXT_NODE = 3; public static final short CDATA_SECTION_NODE = 4; public static final short ENTITY_REFERENCE_NODE = 5; public static final short ENTITY_NODE = 6; public static final short PROCESSING_INSTRUCTION_NODE = 7; public static final short COMMENT_NODE = 8; public static final short DOCUMENT_NODE = 9; public static final short DOCUMENT_TYPE_NODE = 10; public static final short DOCUMENT_FRAGMENT_NODE = 11; public static final short NOTATION_NODE = 12; public String getNodeName(); public String getNodeValue(); public void setNodeValue(String arg); public short getNodeType(); public Node getParentNode(); public NodeList getChildNodes(); public Node getFirstChild(); public Node getLastChild(); public Node getPreviousSibling(); public Node getNextSibling(); public NamedNodeMap getAttributes(); public Document getOwnerDocument(); public Node insertBefore(Node newChild, Node refChild) throws DOMException; public Node replaceChild(Node newChild, Node oldChild) throws DOMException; public Node removeChild(Node oldChild) throws DOMException; public Node appendChild(Node newChild) throws DOMException; public boolean hasChildNodes(); public Node cloneNode(boolean deep); } public interface NodeList { public Node item(int index); public int getLength(); } public interface NamedNodeMap { public Node getNamedItem(String name); public Node setNamedItem(Node arg) throws DOMException; public Node removeNamedItem(String name) throws DOMException; public Node item(int index); public int getLength(); } public interface CharacterData extends Node { public String getData(); public void setData(String arg); public int getLength(); public String substringData(int offset, int count) throws DOMException; public void appendData(String arg) throws DOMException; public void insertData(int offset, String arg) throws DOMException; public void deleteData(int offset, int count) throws DOMException; public void replaceData(int offset, int count, String arg) throws DOMException; } public interface Attribute extends Node { public String getName(); public boolean getSpecified(); public String getValue(); public void setValue(String arg); } public interface Element extends Node { public String getTagName(); public String getAttribute(String name); public void setAttribute(String name, String value) throws DOMException; public void removeAttribute(String name) throws DOMException; public Attribute getAttributeNode(String name); public Attribute setAttributeNode(Attribute newAttr) throws DOMException; public Attribute removeAttributeNode(Attribute oldAttr) throws DOMException; public NodeList getElementsByTagName(String name); public void normalize(); } public interface Text extends CharacterData { public Text splitText(int offset) throws DOMException; } public interface Comment extends CharacterData { } public interface ProcessingInstruction extends Node { public String getTarget(); public String getData(); public void setData(String arg); } public interface CDATASection extends Text { } public interface DocumentType extends Node { public String getName(); public NamedNodeMap getEntities(); public NamedNodeMap getNotations(); } public interface Notation extends Node { public String getPublicId(); public String getSystemId(); } public interface Entity extends Node { public String getPublicId(); public String getSystemId(); public String getNotationName(); } public interface EntityReference extends Node { } D.2: Document Object Model Level 1 HTML public interface HTMLCollection { public int getLength(); public Node item(int index); public Node namedItem(String name); } public interface HTMLDocument extends Document { public String getTitle(); public void setTitle(String arg); public String getReferrer(); public String getDomain(); public String getURL(); public HTMLElement getBody(); public void setBody(HTMLElement arg); public HTMLCollection getImages(); public HTMLCollection getApplets(); public HTMLCollection getLinks(); public HTMLCollection getForms(); public HTMLCollection getAnchors(); public String getCookie(); public void setCookie(String arg); public void open(); public void close(); public void write(String text); public void writeln(String text); public Element getElementById(String elementId); public NodeList getElementsByName(String elementName); } public interface HTMLElement extends Element { public String getId(); public void setId(String arg); public String getTitle(); public void setTitle(String arg); public String getLang(); public void setLang(String arg); public String getDir(); public void setDir(String arg); public String getClassName(); public void setClassName(String arg); } public interface HTMLHtmlElement extends HTMLElement { public String getVersion(); public void setVersion(String arg); } public interface HTMLHeadElement extends HTMLElement { public String getProfile(); public void setProfile(String arg); } public interface HTMLLinkElement extends HTMLElement { public boolean getDisabled(); public void setDisabled(boolean arg); public String getCharset(); public void setCharset(String arg); public String getHref(); public void setHref(String arg); public String getHreflang(); public void setHreflang(String arg); public String getMedia(); public void setMedia(String arg); public String getRel(); public void setRel(String arg); public String getRev(); public void setRev(String arg); public String getTarget(); public void setTarget(String arg); public String getType(); public void setType(String arg); } public interface HTMLTitleElement extends HTMLElement { public String getText(); public void setText(String arg); } public interface HTMLMetaElement extends HTMLElement { public String getContent(); public void setContent(String arg); public String getHttpEquiv(); public void setHttpEquiv(String arg); public String getName(); public void setName(String arg); public String getScheme(); public void setScheme(String arg); } public interface HTMLBaseElement extends HTMLElement { public String getHref(); public void setHref(String arg); public String getTarget(); public void setTarget(String arg); } public interface HTMLIsIndexElement extends HTMLElement { public HTMLFormElement getForm(); public String getPrompt(); public void setPrompt(String arg); } public interface HTMLStyleElement extends HTMLElement { public boolean getDisabled(); public void setDisabled(boolean arg); public String getMedia(); public void setMedia(String arg); public String getType(); public void setType(String arg); } public interface HTMLBodyElement extends HTMLElement { public String getALink(); public void setALink(String arg); public String getBackground(); public void setBackground(String arg); public String getBgColor(); public void setBgColor(String arg); public String getLink(); public void setLink(String arg); public String getText(); public void setText(String arg); public String getVLink(); public void setVLink(String arg); } public interface HTMLFormElement extends HTMLElement { public HTMLCollection getElements(); public int getLength(); public String getName(); public void setName(String arg); public String getAcceptCharset(); public void setAcceptCharset(String arg); public String getAction(); public void setAction(String arg); public String getEnctype(); public void setEnctype(String arg); public String getMethod(); public void setMethod(String arg); public String getTarget(); public void setTarget(String arg); public void submit(); public void reset(); } public interface HTMLSelectElement extends HTMLElement { public String getType(); public int getSelectedIndex(); public void setSelectedIndex(int arg); public String getValue(); public void setValue(String arg); public int getLength(); public void setLength(int arg); public HTMLFormElement getForm(); public HTMLCollection getOptions(); public void setOptions(HTMLCollection arg); public boolean getDisabled(); public void setDisabled(boolean arg); public boolean getMultiple(); public void setMultiple(boolean arg); public String getName(); public void setName(String arg); public int getSize(); public void setSize(int arg); public int getTabIndex(); public void setTabIndex(int arg); public void add(HTMLElement element, HTMLElement before); public void remove(int index); public void blur(); public void focus(); } public interface HTMLOptGroupElement extends HTMLElement { public boolean getDisabled(); public void setDisabled(boolean arg); public String getLabel(); public void setLabel(String arg); } public interface HTMLOptionElement extends HTMLElement { public HTMLFormElement getForm(); public boolean getDefaultSelected(); public void setDefaultSelected(boolean arg); public String getText(); public int getIndex(); public void setIndex(int arg); public boolean getDisabled(); public void setDisabled(boolean arg); public String getLabel(); public void setLabel(String arg); public boolean getSelected(); public String getValue(); public void setValue(String arg); } public interface HTMLInputElement extends HTMLElement { public String getDefaultValue(); public void setDefaultValue(String arg); public boolean getDefaultChecked(); public void setDefaultChecked(boolean arg); public HTMLFormElement getForm(); public String getAccept(); public void setAccept(String arg); public String getAccessKey(); public void setAccessKey(String arg); public String getAlign(); public void setAlign(String arg); public String getAlt(); public void setAlt(String arg); public boolean getChecked(); public void setChecked(boolean arg); public boolean getDisabled(); public void setDisabled(boolean arg); public int getMaxLength(); public void setMaxLength(int arg); public String getName(); public void setName(String arg); public boolean getReadOnly(); public void setReadOnly(boolean arg); public String getSize(); public void setSize(String arg); public String getSrc(); public void setSrc(String arg); public int getTabIndex(); public void setTabIndex(int arg); public String getType(); public String getUseMap(); public void setUseMap(String arg); public String getValue(); public void setValue(String arg); public void blur(); public void focus(); public void select(); public void click(); } public interface HTMLTextAreaElement extends HTMLElement { public String getDefaultValue(); public void setDefaultValue(String arg); public HTMLFormElement getForm(); public String getAccessKey(); public void setAccessKey(String arg); public int getCols(); public void setCols(int arg); public boolean getDisabled(); public void setDisabled(boolean arg); public String getName(); public void setName(String arg); public boolean getReadOnly(); public void setReadOnly(boolean arg); public int getRows(); public void setRows(int arg); public int getTabIndex(); public void setTabIndex(int arg); public String getType(); public void blur(); public void focus(); public void select(); } public interface HTMLButtonElement extends HTMLElement { public HTMLFormElement getForm(); public String getAccessKey(); public void setAccessKey(String arg); public boolean getDisabled(); public void setDisabled(boolean arg); public String getName(); public void setName(String arg); public int getTabIndex(); public void setTabIndex(int arg); public String getType(); public String getValue(); public void setValue(String arg); } public interface HTMLLabelElement extends HTMLElement { public HTMLFormElement getForm(); public String getAccessKey(); public void setAccessKey(String arg); public String getHtmlFor(); public void setHtmlFor(String arg); } public interface HTMLFieldSetElement extends HTMLElement { public HTMLFormElement getForm(); } public interface HTMLLegendElement extends HTMLElement { public HTMLFormElement getForm(); public String getAccessKey(); public void setAccessKey(String arg); public String getAlign(); public void setAlign(String arg); } public interface HTMLUListElement extends HTMLElement { public boolean getCompact(); public void setCompact(boolean arg); public String getType(); public void setType(String arg); } public interface HTMLOListElement extends HTMLElement { public boolean getCompact(); public void setCompact(boolean arg); public int getStart(); public void setStart(int arg); public String getType(); public void setType(String arg); } public interface HTMLDListElement extends HTMLElement { public boolean getCompact(); public void setCompact(boolean arg); } public interface HTMLDirectoryElement extends HTMLElement { public boolean getCompact(); public void setCompact(boolean arg); } public interface HTMLMenuElement extends HTMLElement { public boolean getCompact(); public void setCompact(boolean arg); } public interface HTMLLIElement extends HTMLElement { public String getType(); public void setType(String arg); public int getValue(); public void setValue(int arg); } public interface HTMLBlockquoteElement extends HTMLElement { public String getCite(); public void setCite(String arg); } public interface HTMLDivElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); } public interface HTMLParagraphElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); } public interface HTMLHeadingElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); } public interface HTMLQuoteElement extends HTMLElement { public String getCite(); public void setCite(String arg); } public interface HTMLPreElement extends HTMLElement { public int getWidth(); public void setWidth(int arg); } public interface HTMLBRElement extends HTMLElement { public String getClear(); public void setClear(String arg); } public interface HTMLBaseFontElement extends HTMLElement { public String getColor(); public void setColor(String arg); public String getFace(); public void setFace(String arg); public String getSize(); public void setSize(String arg); } public interface HTMLFontElement extends HTMLElement { public String getColor(); public void setColor(String arg); public String getFace(); public void setFace(String arg); public String getSize(); public void setSize(String arg); } public interface HTMLHRElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); public boolean getNoShade(); public void setNoShade(boolean arg); public String getSize(); public void setSize(String arg); public String getWidth(); public void setWidth(String arg); } public interface HTMLModElement extends HTMLElement { public String getCite(); public void setCite(String arg); public String getDateTime(); public void setDateTime(String arg); } public interface HTMLAnchorElement extends HTMLElement { public String getAccessKey(); public void setAccessKey(String arg); public String getCharset(); public void setCharset(String arg); public String getCoords(); public void setCoords(String arg); public String getHref(); public void setHref(String arg); public String getHreflang(); public void setHreflang(String arg); public String getName(); public void setName(String arg); public String getRel(); public void setRel(String arg); public String getRev(); public void setRev(String arg); public String getShape(); public void setShape(String arg); public int getTabIndex(); public void setTabIndex(int arg); public String getTarget(); public void setTarget(String arg); public String getType(); public void setType(String arg); public void blur(); public void focus(); } public interface HTMLImageElement extends HTMLElement { public String getLowSrc(); public void setLowSrc(String arg); public String getName(); public void setName(String arg); public String getAlign(); public void setAlign(String arg); public String getAlt(); public void setAlt(String arg); public String getBorder(); public void setBorder(String arg); public String getHeight(); public void setHeight(String arg); public String getHspace(); public void setHspace(String arg); public boolean getIsMap(); public void setIsMap(boolean arg); public String getLongDesc(); public void setLongDesc(String arg); public String getSrc(); public void setSrc(String arg); public String getUseMap(); public void setUseMap(String arg); public String getVspace(); public void setVspace(String arg); public String getWidth(); public void setWidth(String arg); } public interface HTMLObjectElement extends HTMLElement { public HTMLFormElement getForm(); public String getCode(); public void setCode(String arg); public String getAlign(); public void setAlign(String arg); public String getArchive(); public void setArchive(String arg); public String getBorder(); public void setBorder(String arg); public String getCodeBase(); public void setCodeBase(String arg); public String getCodeType(); public void setCodeType(String arg); public String getData(); public void setData(String arg); public boolean getDeclare(); public void setDeclare(boolean arg); public String getHeight(); public void setHeight(String arg); public String getHspace(); public void setHspace(String arg); public String getName(); public void setName(String arg); public String getStandby(); public void setStandby(String arg); public int getTabIndex(); public void setTabIndex(int arg); public String getType(); public void setType(String arg); public String getUseMap(); public void setUseMap(String arg); public String getVspace(); public void setVspace(String arg); public String getWidth(); public void setWidth(String arg); } public interface HTMLParamElement extends HTMLElement { public String getName(); public void setName(String arg); public String getType(); public void setType(String arg); public String getValue(); public void setValue(String arg); public String getValueType(); public void setValueType(String arg); } public interface HTMLAppletElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); public String getAlt(); public void setAlt(String arg); public String getArchive(); public void setArchive(String arg); public String getCode(); public void setCode(String arg); public String getCodeBase(); public void setCodeBase(String arg); public String getHeight(); public void setHeight(String arg); public String getHspace(); public void setHspace(String arg); public String getName(); public void setName(String arg); public String getObject(); public void setObject(String arg); public String getVspace(); public void setVspace(String arg); public String getWidth(); public void setWidth(String arg); } public interface HTMLMapElement extends HTMLElement { public HTMLCollection getAreas(); public String getName(); public void setName(String arg); } public interface HTMLAreaElement extends HTMLElement { public String getAccessKey(); public void setAccessKey(String arg); public String getAlt(); public void setAlt(String arg); public String getCoords(); public void setCoords(String arg); public String getHref(); public void setHref(String arg); public boolean getNoHref(); public void setNoHref(boolean arg); public String getShape(); public void setShape(String arg); public int getTabIndex(); public void setTabIndex(int arg); public String getTarget(); public void setTarget(String arg); } public interface HTMLScriptElement extends HTMLElement { public String getText(); public void setText(String arg); public String getHtmlFor(); public void setHtmlFor(String arg); public String getEvent(); public void setEvent(String arg); public String getCharset(); public void setCharset(String arg); public boolean getDefer(); public void setDefer(boolean arg); public String getSrc(); public void setSrc(String arg); public String getType(); public void setType(String arg); } public interface HTMLTableElement extends HTMLElement { public HTMLTableCaptionElement getCaption(); public void setCaption(HTMLTableCaptionElement arg); public HTMLTableSectionElement getTHead(); public void setTHead(HTMLTableSectionElement arg); public HTMLTableSectionElement getTFoot(); public void setTFoot(HTMLTableSectionElement arg); public HTMLCollection getRows(); public HTMLCollection getTBodies(); public void setTBodies(HTMLCollection arg); public String getAlign(); public void setAlign(String arg); public String getBgColor(); public void setBgColor(String arg); public String getBorder(); public void setBorder(String arg); public String getCellPadding(); public void setCellPadding(String arg); public String getCellSpacing(); public void setCellSpacing(String arg); public String getFrame(); public void setFrame(String arg); public String getRules(); public void setRules(String arg); public String getSummary(); public void setSummary(String arg); public String getWidth(); public void setWidth(String arg); public HTMLElement createTHead(); public void deleteTHead(); public HTMLElement createTFoot(); public void deleteTFoot(); public HTMLElement createCaption(); public void deleteCaption(); public HTMLElement insertRow(int index); public void deleteRow(int index); } public interface HTMLTableCaptionElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); } public interface HTMLTableColElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); public String getCh(); public void setCh(String arg); public String getChOff(); public void setChOff(String arg); public int getSpan(); public void setSpan(int arg); public String getVAlign(); public void setVAlign(String arg); public String getWidth(); public void setWidth(String arg); } public interface HTMLTableSectionElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); public String getCh(); public void setCh(String arg); public String getChOff(); public void setChOff(String arg); public String getVAlign(); public void setVAlign(String arg); public HTMLCollection getRows(); public void setRows(HTMLCollection arg); public HTMLElement insertRow(int index); public void deleteRow(int index); } public interface HTMLTableRowElement extends HTMLElement { public int getRowIndex(); public void setRowIndex(int arg); public int getSectionRowIndex(); public void setSectionRowIndex(int arg); public HTMLCollection getCells(); public void setCells(HTMLCollection arg); public String getAlign(); public void setAlign(String arg); public String getBgColor(); public void setBgColor(String arg); public String getCh(); public void setCh(String arg); public String getChOff(); public void setChOff(String arg); public String getVAlign(); public void setVAlign(String arg); public HTMLElement insertCell(int index); public void deleteCell(int index); } public interface HTMLTableCellElement extends HTMLElement { public int getCellIndex(); public void setCellIndex(int arg); public String getAbbr(); public void setAbbr(String arg); public String getAlign(); public void setAlign(String arg); public String getAxis(); public void setAxis(String arg); public String getBgColor(); public void setBgColor(String arg); public String getCh(); public void setCh(String arg); public String getChOff(); public void setChOff(String arg); public int getColSpan(); public void setColSpan(int arg); public String getHeaders(); public void setHeaders(String arg); public String getHeight(); public void setHeight(String arg); public boolean getNoWrap(); public void setNoWrap(boolean arg); public int getRowSpan(); public void setRowSpan(int arg); public String getScope(); public void setScope(String arg); public String getVAlign(); public void setVAlign(String arg); public String getWidth(); public void setWidth(String arg); } public interface HTMLFrameSetElement extends HTMLElement { public String getCols(); public void setCols(String arg); public String getRows(); public void setRows(String arg); } public interface HTMLFrameElement extends HTMLElement { public String getFrameBorder(); public void setFrameBorder(String arg); public String getLongDesc(); public void setLongDesc(String arg); public String getMarginHeight(); public void setMarginHeight(String arg); public String getMarginWidth(); public void setMarginWidth(String arg); public String getName(); public void setName(String arg); public boolean getNoResize(); public void setNoResize(boolean arg); public String getScrolling(); public void setScrolling(String arg); public String getSrc(); public void setSrc(String arg); } public interface HTMLIFrameElement extends HTMLElement { public String getAlign(); public void setAlign(String arg); public String getFrameBorder(); public void setFrameBorder(String arg); public String getHeight(); public void setHeight(String arg); public String getLongDesc(); public void setLongDesc(String arg); public String getMarginHeight(); public void setMarginHeight(String arg); public String getMarginWidth(); public void setMarginWidth(String arg); public String getName(); public void setName(String arg); public String getScrolling(); public void setScrolling(String arg); public String getSrc(); public void setSrc(String arg); public String getWidth(); public void setWidth(String arg); } Appendix E: ECMA Script Language Binding This appendix contains the complete ECMA Script binding for the Level 1 Document Object Model definitions. The definitions are divided into Core and HTML. E.1: Document Object Model Level 1 Core Object ExceptionCode Object DOMException Object DOMImplementation The DOMImplementation object has the following methods: hasFeature(feature, version) This method returns a boolean. The feature parameter is of type wstring. The version parameter is of type wstring. Object DocumentFragment DocumentFragment has the all the properties and methods of Node as well as the properties and methods defined below. Object Document Document has the all the properties and methods of Node as well as the properties and methods defined below. The Document object has the following properties: doctype This property is of type DocumentType. implementation This property is of type DOMImplementation. documentElement This property is of type Element. createDocumentFragment This property is of type DocumentFragment. The Document object has the following methods: createElement(tagName) This method returns a Element. The tagName parameter is of type wstring. createTextNode(data) This method returns a Text. The data parameter is of type wstring. createComment(data) This method returns a Comment. The data parameter is of type wstring. createCDATASection(data) This method returns a CDATASection. The data parameter is of type wstring. createProcessingInstruction(target, data) This method returns a ProcessingInstruction. The target parameter is of type wstring. The data parameter is of type wstring. createAttribute(name) This method returns a Attribute. The name parameter is of type wstring. createEntityReference(name) This method returns a EntityReference. The name parameter is of type wstring. getElementsByTagName(tagname) This method returns a NodeList. The tagname parameter is of type wstring. Object Node The Node object has the following properties: nodeName This property is of type String. nodeValue This property is of type String. nodeType This property is of type short. parentNode This property is of type Node. childNodes This property is of type NodeList. firstChild This property is of type Node. lastChild This property is of type Node. previousSibling This property is of type Node. nextSibling This property is of type Node. attributes This property is of type NamedNodeMap. ownerDocument This property is of type Document. hasChildNodes This property is of type boolean. The Node object has the following methods: insertBefore(newChild, refChild) This method returns a Node. The newChild parameter is of type Node. The refChild parameter is of type Node. replaceChild(newChild, oldChild) This method returns a Node. The newChild parameter is of type Node. The oldChild parameter is of type Node. removeChild(oldChild) This method returns a Node. The oldChild parameter is of type Node. appendChild(newChild) This method returns a Node. The newChild parameter is of type Node. cloneNode(deep) This method returns a Node. The deep parameter is of type boolean. Object NodeList The NodeList object has the following properties: length This property is of type int. The NodeList object has the following methods: item(index) This method returns a Node. The index parameter is of type unsigned long. Object NamedNodeMap The NamedNodeMap object has the following properties: length This property is of type int. The NamedNodeMap object has the following methods: getNamedItem(name) This method returns a Node. The name parameter is of type wstring. setNamedItem(arg) This method returns a Node. The arg parameter is of type Node. removeNamedItem(name) This method returns a Node. The name parameter is of type wstring. item(index) This method returns a Node. The index parameter is of type unsigned long. Object CharacterData CharacterData has the all the properties and methods of Node as well as the properties and methods defined below. The CharacterData object has the following properties: data This property is of type String. length This property is of type int. The CharacterData object has the following methods: substringData(offset, count) This method returns a wstring. The offset parameter is of type unsigned long. The count parameter is of type unsigned long. appendData(arg) This method returns a void. The arg parameter is of type wstring. insertData(offset, arg) This method returns a void. The offset parameter is of type unsigned long. The arg parameter is of type wstring. deleteData(offset, count) This method returns a void. The offset parameter is of type unsigned long. The count parameter is of type unsigned long. replaceData(offset, count, arg) This method returns a void. The offset parameter is of type unsigned long. The count parameter is of type unsigned long. The arg parameter is of type wstring. Object Attribute Attribute has the all the properties and methods of Node as well as the properties and methods defined below. The Attribute object has the following properties: name This property is of type String. specified This property is of type boolean. value This property is of type String. Object Element Element has the all the properties and methods of Node as well as the properties and methods defined below. The Element object has the following properties: tagName This property is of type String. normalize This property is of type void. The Element object has the following methods: getAttribute(name) This method returns a wstring. The name parameter is of type wstring. setAttribute(name, value) This method returns a void. The name parameter is of type wstring. The value parameter is of type wstring. removeAttribute(name) This method returns a void. The name parameter is of type wstring. getAttributeNode(name) This method returns a Attribute. The name parameter is of type wstring. setAttributeNode(newAttr) This method returns a Attribute. The newAttr parameter is of type Attribute. removeAttributeNode(oldAttr) This method returns a Attribute. The oldAttr parameter is of type Attribute. getElementsByTagName(name) This method returns a NodeList. The name parameter is of type wstring. Object Text Text has the all the properties and methods of CharacterData as well as the properties and methods defined below. The Text object has the following methods: splitText(offset) This method returns a Text. The offset parameter is of type unsigned long. Object Comment Comment has the all the properties and methods of CharacterData as well as the properties and methods defined below. Object ProcessingInstruction ProcessingInstruction has the all the properties and methods of Node as well as the properties and methods defined below. The ProcessingInstruction object has the following properties: target This property is of type String. data This property is of type String. Object CDATASection CDATASection has the all the properties and methods of Text as well as the properties and methods defined below. Object DocumentType DocumentType has the all the properties and methods of Node as well as the properties and methods defined below. The DocumentType object has the following properties: name This property is of type String. entities This property is of type NamedNodeMap. notations This property is of type NamedNodeMap. Object Notation Notation has the all the properties and methods of Node as well as the properties and methods defined below. The Notation object has the following properties: publicId This property is of type String. systemId This property is of type String. Object Entity Entity has the all the properties and methods of Node as well as the properties and methods defined below. The Entity object has the following properties: publicId This property is of type String. systemId This property is of type String. notationName This property is of type String. Object EntityReference EntityReference has the all the properties and methods of Node as well as the properties and methods defined below. E.2: Document Object Model Level 1 HTML Object HTMLCollection The HTMLCollection object has the following properties: length This property is of type int. The HTMLCollection object has the following methods: item(index) This method returns a Node. The index parameter is of type unsigned long. namedItem(name) This method returns a Node. The name parameter is of type wstring. Object HTMLDocument HTMLDocument has the all the properties and methods of Document as well as the properties and methods defined below. The HTMLDocument object has the following properties: title This property is of type String. referrer This property is of type String. domain This property is of type String. URL This property is of type String. body This property is of type HTMLElement. images This property is of type HTMLCollection. applets This property is of type HTMLCollection. links This property is of type HTMLCollection. forms This property is of type HTMLCollection. anchors This property is of type HTMLCollection. cookie This property is of type String. open This property is of type void. close This property is of type void. The HTMLDocument object has the following methods: write(text) This method returns a void. The text parameter is of type wstring. writeln(text) This method returns a void. The text parameter is of type wstring. getElementById(elementId) This method returns a Element. The elementId parameter is of type wstring. getElementsByName(elementName) This method returns a NodeList. The elementName parameter is of type wstring. Object HTMLElement HTMLElement has the all the properties and methods of Element as well as the properties and methods defined below. The HTMLElement object has the following properties: id This property is of type String. title This property is of type String. lang This property is of type String. dir This property is of type String. className This property is of type String. Object HTMLHtmlElement HTMLHtmlElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLHtmlElement object has the following properties: version This property is of type String. Object HTMLHeadElement HTMLHeadElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLHeadElement object has the following properties: profile This property is of type String. Object HTMLLinkElement HTMLLinkElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLLinkElement object has the following properties: disabled This property is of type boolean. charset This property is of type String. href This property is of type String. hreflang This property is of type String. media This property is of type String. rel This property is of type String. rev This property is of type String. target This property is of type String. type This property is of type String. Object HTMLTitleElement HTMLTitleElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTitleElement object has the following properties: text This property is of type String. Object HTMLMetaElement HTMLMetaElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLMetaElement object has the following properties: content This property is of type String. httpEquiv This property is of type String. name This property is of type String. scheme This property is of type String. Object HTMLBaseElement HTMLBaseElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLBaseElement object has the following properties: href This property is of type String. target This property is of type String. Object HTMLIsIndexElement HTMLIsIndexElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLIsIndexElement object has the following properties: form This property is of type HTMLFormElement. prompt This property is of type String. Object HTMLStyleElement HTMLStyleElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLStyleElement object has the following properties: disabled This property is of type boolean. media This property is of type String. type This property is of type String. Object HTMLBodyElement HTMLBodyElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLBodyElement object has the following properties: aLink This property is of type String. background This property is of type String. bgColor This property is of type String. link This property is of type String. text This property is of type String. vLink This property is of type String. Object HTMLFormElement HTMLFormElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLFormElement object has the following properties: elements This property is of type HTMLCollection. length This property is of type long. name This property is of type String. acceptCharset This property is of type String. action This property is of type String. enctype This property is of type String. method This property is of type String. target This property is of type String. submit This property is of type void. reset This property is of type void. Object HTMLSelectElement HTMLSelectElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLSelectElement object has the following properties: type This property is of type String. selectedIndex This property is of type long. value This property is of type String. length This property is of type long. form This property is of type HTMLFormElement. options This property is of type HTMLCollection. disabled This property is of type boolean. multiple This property is of type boolean. name This property is of type String. size This property is of type long. tabIndex This property is of type long. blur This property is of type void. focus This property is of type void. The HTMLSelectElement object has the following methods: add(element, before) This method returns a void. The element parameter is of type HTMLElement. The before parameter is of type HTMLElement. remove(index) This method returns a void. The index parameter is of type long. Object HTMLOptGroupElement HTMLOptGroupElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLOptGroupElement object has the following properties: disabled This property is of type boolean. label This property is of type String. Object HTMLOptionElement HTMLOptionElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLOptionElement object has the following properties: form This property is of type HTMLFormElement. defaultSelected This property is of type boolean. text This property is of type String. index This property is of type long. disabled This property is of type boolean. label This property is of type String. selected This property is of type boolean. value This property is of type String. Object HTMLInputElement HTMLInputElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLInputElement object has the following properties: defaultValue This property is of type String. defaultChecked This property is of type boolean. form This property is of type HTMLFormElement. accept This property is of type String. accessKey This property is of type String. align This property is of type String. alt This property is of type String. checked This property is of type boolean. disabled This property is of type boolean. maxLength This property is of type long. name This property is of type String. readOnly This property is of type boolean. size This property is of type String. src This property is of type String. tabIndex This property is of type long. type This property is of type String. useMap This property is of type String. value This property is of type String. blur This property is of type void. focus This property is of type void. select This property is of type void. click This property is of type void. Object HTMLTextAreaElement HTMLTextAreaElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTextAreaElement object has the following properties: defaultValue This property is of type String. form This property is of type HTMLFormElement. accessKey This property is of type String. cols This property is of type long. disabled This property is of type boolean. name This property is of type String. readOnly This property is of type boolean. rows This property is of type long. tabIndex This property is of type long. type This property is of type String. blur This property is of type void. focus This property is of type void. select This property is of type void. Object HTMLButtonElement HTMLButtonElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLButtonElement object has the following properties: form This property is of type HTMLFormElement. accessKey This property is of type String. disabled This property is of type boolean. name This property is of type String. tabIndex This property is of type long. type This property is of type String. value This property is of type String. Object HTMLLabelElement HTMLLabelElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLLabelElement object has the following properties: form This property is of type HTMLFormElement. accessKey This property is of type String. htmlFor This property is of type String. Object HTMLFieldSetElement HTMLFieldSetElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLFieldSetElement object has the following properties: form This property is of type HTMLFormElement. Object HTMLLegendElement HTMLLegendElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLLegendElement object has the following properties: form This property is of type HTMLFormElement. accessKey This property is of type String. align This property is of type String. Object HTMLUListElement HTMLUListElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLUListElement object has the following properties: compact This property is of type boolean. type This property is of type String. Object HTMLOListElement HTMLOListElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLOListElement object has the following properties: compact This property is of type boolean. start This property is of type long. type This property is of type String. Object HTMLDListElement HTMLDListElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLDListElement object has the following properties: compact This property is of type boolean. Object HTMLDirectoryElement HTMLDirectoryElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLDirectoryElement object has the following properties: compact This property is of type boolean. Object HTMLMenuElement HTMLMenuElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLMenuElement object has the following properties: compact This property is of type boolean. Object HTMLLIElement HTMLLIElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLLIElement object has the following properties: type This property is of type String. value This property is of type long. Object HTMLBlockquoteElement HTMLBlockquoteElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLBlockquoteElement object has the following properties: cite This property is of type String. Object HTMLDivElement HTMLDivElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLDivElement object has the following properties: align This property is of type String. Object HTMLParagraphElement HTMLParagraphElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLParagraphElement object has the following properties: align This property is of type String. Object HTMLHeadingElement HTMLHeadingElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLHeadingElement object has the following properties: align This property is of type String. Object HTMLQuoteElement HTMLQuoteElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLQuoteElement object has the following properties: cite This property is of type String. Object HTMLPreElement HTMLPreElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLPreElement object has the following properties: width This property is of type long. Object HTMLBRElement HTMLBRElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLBRElement object has the following properties: clear This property is of type String. Object HTMLBaseFontElement HTMLBaseFontElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLBaseFontElement object has the following properties: color This property is of type String. face This property is of type String. size This property is of type String. Object HTMLFontElement HTMLFontElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLFontElement object has the following properties: color This property is of type String. face This property is of type String. size This property is of type String. Object HTMLHRElement HTMLHRElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLHRElement object has the following properties: align This property is of type String. noShade This property is of type boolean. size This property is of type String. width This property is of type String. Object HTMLModElement HTMLModElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLModElement object has the following properties: cite This property is of type String. dateTime This property is of type String. Object HTMLAnchorElement HTMLAnchorElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLAnchorElement object has the following properties: accessKey This property is of type String. charset This property is of type String. coords This property is of type String. href This property is of type String. hreflang This property is of type String. name This property is of type String. rel This property is of type String. rev This property is of type String. shape This property is of type String. tabIndex This property is of type long. target This property is of type String. type This property is of type String. blur This property is of type void. focus This property is of type void. Object HTMLImageElement HTMLImageElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLImageElement object has the following properties: lowSrc This property is of type String. name This property is of type String. align This property is of type String. alt This property is of type String. border This property is of type String. height This property is of type String. hspace This property is of type String. isMap This property is of type boolean. longDesc This property is of type String. src This property is of type String. useMap This property is of type String. vspace This property is of type String. width This property is of type String. Object HTMLObjectElement HTMLObjectElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLObjectElement object has the following properties: form This property is of type HTMLFormElement. code This property is of type String. align This property is of type String. archive This property is of type String. border This property is of type String. codeBase This property is of type String. codeType This property is of type String. data This property is of type String. declare This property is of type boolean. height This property is of type String. hspace This property is of type String. name This property is of type String. standby This property is of type String. tabIndex This property is of type long. type This property is of type String. useMap This property is of type String. vspace This property is of type String. width This property is of type String. Object HTMLParamElement HTMLParamElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLParamElement object has the following properties: name This property is of type String. type This property is of type String. value This property is of type String. valueType This property is of type String. Object HTMLAppletElement HTMLAppletElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLAppletElement object has the following properties: align This property is of type String. alt This property is of type String. archive This property is of type String. code This property is of type String. codeBase This property is of type String. height This property is of type String. hspace This property is of type String. name This property is of type String. object This property is of type String. vspace This property is of type String. width This property is of type String. Object HTMLMapElement HTMLMapElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLMapElement object has the following properties: areas This property is of type HTMLCollection. name This property is of type String. Object HTMLAreaElement HTMLAreaElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLAreaElement object has the following properties: accessKey This property is of type String. alt This property is of type String. coords This property is of type String. href This property is of type String. noHref This property is of type boolean. shape This property is of type String. tabIndex This property is of type long. target This property is of type String. Object HTMLScriptElement HTMLScriptElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLScriptElement object has the following properties: text This property is of type String. htmlFor This property is of type String. event This property is of type String. charset This property is of type String. defer This property is of type boolean. src This property is of type String. type This property is of type String. Object HTMLTableElement HTMLTableElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTableElement object has the following properties: caption This property is of type HTMLTableCaptionElement. tHead This property is of type HTMLTableSectionElement. tFoot This property is of type HTMLTableSectionElement. rows This property is of type HTMLCollection. tBodies This property is of type HTMLCollection. align This property is of type String. bgColor This property is of type String. border This property is of type String. cellPadding This property is of type String. cellSpacing This property is of type String. frame This property is of type String. rules This property is of type String. summary This property is of type String. width This property is of type String. createTHead This property is of type HTMLElement. deleteTHead This property is of type void. createTFoot This property is of type HTMLElement. deleteTFoot This property is of type void. createCaption This property is of type HTMLElement. deleteCaption This property is of type void. The HTMLTableElement object has the following methods: insertRow(index) This method returns a HTMLElement. The index parameter is of type long. deleteRow(index) This method returns a void. The index parameter is of type long. Object HTMLTableCaptionElement HTMLTableCaptionElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTableCaptionElement object has the following properties: align This property is of type String. Object HTMLTableColElement HTMLTableColElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTableColElement object has the following properties: align This property is of type String. ch This property is of type String. chOff This property is of type String. span This property is of type long. vAlign This property is of type String. width This property is of type String. Object HTMLTableSectionElement HTMLTableSectionElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTableSectionElement object has the following properties: align This property is of type String. ch This property is of type String. chOff This property is of type String. vAlign This property is of type String. rows This property is of type HTMLCollection. The HTMLTableSectionElement object has the following methods: insertRow(index) This method returns a HTMLElement. The index parameter is of type long. deleteRow(index) This method returns a void. The index parameter is of type long. Object HTMLTableRowElement HTMLTableRowElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTableRowElement object has the following properties: rowIndex This property is of type long. sectionRowIndex This property is of type long. cells This property is of type HTMLCollection. align This property is of type String. bgColor This property is of type String. ch This property is of type String. chOff This property is of type String. vAlign This property is of type String. The HTMLTableRowElement object has the following methods: insertCell(index) This method returns a HTMLElement. The index parameter is of type long. deleteCell(index) This method returns a void. The index parameter is of type long. Object HTMLTableCellElement HTMLTableCellElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLTableCellElement object has the following properties: cellIndex This property is of type long. abbr This property is of type String. align This property is of type String. axis This property is of type String. bgColor This property is of type String. ch This property is of type String. chOff This property is of type String. colSpan This property is of type long. headers This property is of type String. height This property is of type String. noWrap This property is of type boolean. rowSpan This property is of type long. scope This property is of type String. vAlign This property is of type String. width This property is of type String. Object HTMLFrameSetElement HTMLFrameSetElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLFrameSetElement object has the following properties: cols This property is of type String. rows This property is of type String. Object HTMLFrameElement HTMLFrameElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLFrameElement object has the following properties: frameBorder This property is of type String. longDesc This property is of type String. marginHeight This property is of type String. marginWidth This property is of type String. name This property is of type String. noResize This property is of type boolean. scrolling This property is of type String. src This property is of type String. Object HTMLIFrameElement HTMLIFrameElement has the all the properties and methods of HTMLElement as well as the properties and methods defined below. The HTMLIFrameElement object has the following properties: align This property is of type String. frameBorder This property is of type String. height This property is of type String. longDesc This property is of type String. marginHeight This property is of type String. marginWidth This property is of type String. name This property is of type String. scrolling This property is of type String. src This property is of type String. width This property is of type String. Index ATTRIBUTE_NODE 1 Attribute 1 CDATASection 1 CDATA_SECTION_NODE 1 COMMENT_NODE 1 CharacterData 1 Comment 1 DOCUMENT_FRAGMENT_NODE DOCUMENT_NODE 1 1 DOCUMENT_TYPE_NODE 1 DOMImplementation 1 Document 1 DocumentFragment 1 DocumentType 1 ELEMENT_NODE 1 ENTITY_NODE 1 ENTITY_REFERENCE_NODE 1 Element 1 Entity 1 EntityReference 1 HTMLAnchorElement 1 HTMLAppletElement 1 HTMLAreaElement 1 HTMLBRElement 1 HTMLBaseElement 1 HTMLBaseFontElement 1 HTMLBlockquoteElement 1 HTMLBodyElement 1 HTMLButtonElement 1 HTMLCollection 1 HTMLDListElement 1 HTMLDirectoryElement 1 HTMLDivElement 1 HTMLDocument 1 HTMLElement 1 HTMLFieldSetElement 1 HTMLFontElement 1 HTMLFormElement 1 HTMLFrameElement 1 HTMLFrameSetElement 1 HTMLHRElement 1 HTMLHeadElement 1 HTMLHeadingElement 1 HTMLHtmlElement 1 HTMLIFrameElement 1 HTMLImageElement 1 HTMLInputElement 1 HTMLIsIndexElement 1 HTMLLIElement 1 HTMLLabelElement 1 HTMLLegendElement 1 HTMLLinkElement 1 HTMLMapElement 1 HTMLMenuElement 1 HTMLMetaElement 1 HTMLModElement 1 HTMLOListElement 1 HTMLObjectElement 1 HTMLOptGroupElement 1 HTMLOptionElement 1 HTMLParagraphElement 1 HTMLParamElement 1 HTMLPreElement 1 HTMLQuoteElement 1 HTMLScriptElement 1 HTMLSelectElement 1 HTMLStyleElement 1 HTMLTableCaptionElement HTMLTableCellElement 1 1 HTMLTableColElement 1 HTMLTableElement 1 HTMLTableRowElement 1 HTMLTableSectionElement 1 HTMLTextAreaElement 1 HTMLTitleElement 1 HTMLUListElement 1 NOTATION_NODE 1 NamedNodeMap 1 Node 1 NodeList 1 Notation 1 PROCESSING_INSTRUCTION_NODE 1 ProcessingInstruction 1 TEXT_NODE 1 Text 1 URL 1 aLink 1 abbr 1 accept 1 acceptCharset 1 accessKey 1, 2, 3, 4, 5, 6, 7 action 1 add 1 align 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, alt 1, 2, 3, 4 anchors 1 15, 16 appendChild 1 appendData 1 applets 1 archive 1, 2 areas 1 attributes 1 axis 1 background 1 bgColor 1, 2, 3, 4 blur 1, 2, 3, 4 body 1 border 1, 2, 3 caption 1 cellIndex 1 cellPadding 1 cellSpacing 1 cells 1 ch 1, 2, 3, 4 chOff 1, 2, 3, 4 charset 1, 2, 3 checked 1 childNodes 1 cite 1, 2, 3 className 1 clear 1 click 1 cloneNode 1 close 1 code 1, 2 codeBase 1, 2 codeType 1 colSpan 1 color 1, 2 cols 1, 2 compact 1, 2, 3, 4, 5 content 1 cookie 1 coords 1, 2 createAttribute 1 createCDATASection 1 createCaption 1 createComment 1 createDocumentFragment 1 createElement 1 createEntityReference 1 createProcessingInstruction 1 createTFoot 1 createTHead 1 createTextNode 1 data 1, 2, 3 dateTime 1 declare 1 defaultChecked 1 defaultSelected 1 defaultValue 1, 2 defer 1 deleteCaption 1 deleteCell 1 deleteData 1 deleteRow 1, 2 deleteTFoot 1 deleteTHead 1 dir 1 disabled 1, 2, 3, 4, 5, 6, 7, 8 doctype 1 documentElement 1 domain 1 elements 1 enctype 1 entities 1 event 1 face 1, 2 firstChild 1 focus 1, 2, 3, 4 form 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 forms 1 frame 1 frameBorder 1, 2 getAttribute 1 getAttributeNode 1 getElementById 1 getElementsByName 1 getElementsByTagName 1, getNamedItem 1 2 hasChildNodes 1 hasFeature 1 headers 1 height 1, 2, 3, 4, 5 href 1, 2, 3, 4 hreflang 1, 2 hspace 1, 2, 3 htmlFor 1, 2 httpEquiv 1 id 1 images 1 implementation 1 index 1 insertBefore 1 insertCell 1 insertData 1 insertRow 1, 2 isMap 1 item 1, 2, 3 label 1, 2 lang 1 lastChild 1 length 1, 2, 3, 4, 5, 6 link 1 links 1 longDesc 1, 2, 3 lowSrc 1 marginHeight 1, 2 marginWidth 1, 2 maxLength 1 media 1, 2 method 1 multiple 1 name 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, namedItem 1 nextSibling 1 15, 16 noHref 1 noResize 1 noShade 1 noWrap 1 nodeName 1 nodeType 1 nodeValue 1 normalize 1 notationName 1 notations 1 object 1 open 1 options 1 ownerDocument 1 parentNode 1 previousSibling 1 profile 1 prompt 1 publicId 1, 2 readOnly 1, 2 referrer 1 rel 1, 2 remove 1 removeAttribute 1 removeAttributeNode 1 removeChild 1 removeNamedItem 1 replaceChild 1 replaceData 1 reset 1 rev 1, 2 rowIndex 1 rowSpan 1 rows 1, 2, 3, 4 rules 1 scheme 1 scope 1 scrolling 1, 2 sectionRowIndex 1 select 1, 2 selected 1 selectedIndex 1 setAttribute 1 setAttributeNode 1 setNamedItem 1 shape 1, 2 size 1, 2, 3, 4, 5 span 1 specified 1 splitText 1 src 1, 2, 3, 4, 5 standby 1 start 1 submit 1 substringData 1 summary 1 systemId 1, 2 tBodies 1 tFoot 1 tHead 1 tabIndex 1, 2, 3, 4, 5, 6, target 1, 2, 3, 4, 5, 7 tagName 1 6 type 1, 2, 3, 4, 5, 6, text 1, 2, 3, 4 title 1, 2 7, 8, 9, 10, 11, 12, 13 useMap 1, 2, 3 vAlign 1, 2, 3, 4 vLink 1 value 1, 2, 3, 4, 5, 6, 7 valueType 1 version 1 vspace 1, 2, 3 width 1, 2, 3, 4, 5, 6, write 1 7, 8, 9 writeln 1 Production Notes Editors Gavin Nicol, Inso EPS The DOM specification serves as a good example of the power of using XML: all of the HTML documents, Java bindings, OMG IDL bindings, and ECMA Script bindings are generated from a single set of XML source files. This section outlines how this specification is written in XML, and how the various derived works are created. 1. The Document Type Definition This specification was written entirely in XML, using a DTD based heavily on the DTD used by the XML Working Group for the XML specification. The major difference between the DTD used by the XML Working Group, and the DTD used for this specification is the addition of a DTD module for interface specifications. The DTD module for interfaces specifications is a very loose translation of the Extended Backus-Naur Form (EBNF) specification of the OMG IDL syntax into XML DTD syntax. In addition to the translation, the ability to describe the interfaces was added, thereby creating a limited form of literate programming for interface definitions. While the DTD module is sufficient for the purposes of the DOM WG, it is very loosely typed, meaning that there are very few constraints placed on the type specifications (the type information is effectively treated as an opaque string). In a DTD for object to object communication, some stricter enforcement of data types would probably be beneficial. 2. The production process The DOM specification is written using XML. All documents are valid XML. In order to produce the HTML versions of the specification, the object indexes, the Java source code, and the OMG IDL and ECMA Script definitions, the XML specification is converted. The tool currently used for conversion is COST by Joe English. COST takes the ESIS output of nsgmls, creates an internal representation, and then allows scripts, and event handlers to be run over the internal data structure. Event handlers allow document patterns and associated processing to be specified: when the pattern is matched during a pre-order traversal of a document subtree, the associated action is executed. This is the heart of the conversion process. Scripts are used to tie the various components together. For example, each of the major derived data sources (Java code etc.) is created by the execution of a script, which in turn executes one or more event handlers. The scripts and event handlers are specified using TCL. The current version of COST has been somewhat modified from the publicly available version. In particular, it now runs correctly under 32-bit Windows, uses TCL 8.0, and correctly handles the case sensitivity of XML (though it probably could not correctly handle native language markup). We could also have used Jade, by James Clark. Like COST, Jade allows patterns and actions to be specified, but Jade is based on DSSSL, an international standard, whereas COST is not. Jade is more powerful than COST in many ways, but prior experience of the editor with Cost made it easier to use this rather than Jade. A future version or Level of the DOM specification may be produced using Jade or an XSL processor. The complete XML source files are available at: http://www.w3.org/TR/1998/PR-DOM-Level-1-19980818/xml-source.zip 3. Object Definitions As stated earlier, all object definitions are specified in XML. The Java bindings, OMG IDL bindings, and ECMA Script bindings are all generated automatically from the XML source code. This is possible because the information specified in XML is a superset of what these other syntax need. This is a general observation, and the same kind of technique can be applied to many other areas: given rich structure, rich processing and conversion are possible. For Java and OMG IDL, it is basically just a matter of renaming syntactic keywords; for ECMA Script, the process is somewhat more involved. A typical object definition in XML looks something like this:

Description goes here...

Description goes here...

Description goes here...

Description goes here...

 As can easily be seen, this is quite verbose, but not unlike OMG IDL. In fact, when the specification was originally converted to use XML, the OMG IDL definitions were automatically converted into the corresponding XML source using common Unix text manipulation tools.