REC-DOM-Level-1-19981001


2. Document Object Model (HTML) Level 1

Editors
Mike Champion, ArborText
Vidur Apparao, Netscape
Scott Isaacs, Microsoft (until January 1998)
Chris Wilson, Microsoft (after January 1998)
Ian Jacobs, W3C

Table of contents


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:

The term "DOM Level 0" refers to a mix (not formally specified) of HTML document functionalities offered by Netscape Navigator version 3.0 and Microsoft Internet Explorer version 3.0. In some cases, attributes or methods have been included for reasons of backward compatibility with "DOM Level 0".

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.

More specifically, this document includes the following specializations for HTML:

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 be 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 DOMString 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 Value
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. It first searches for a Node with a matching id attribute. If it doesn't find one, it then searches for a Node with a matching name attribute, but only on those elements that are allowed a name attribute.
Parameters
name

The name of the Node to be fetched.

Return Value
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:

IDL Definition
interface HTMLDocument : Document {
           attribute  DOMString            title;
  readonly attribute  DOMString            referrer;
  readonly attribute  DOMString            domain;
  readonly attribute  DOMString            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  DOMString            cookie;
  void                      open();
  void                      close();
  void                      write(in DOMString text);
  void                      writeln(in DOMString text);
  Element                   getElementById(in DOMString elementId);
  NodeList                  getElementsByName(in DOMString 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 null. Behavior is not defined if more than one element has this id.
Parameters
elementId

The unique id value for an element.

Return Value
The matching element.

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 Value
The matching elements.

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 TypeObject Model Data Type
CDATADOMString
Value list (e.g., (left | right | center))DOMString
one-value Value list (e.g., (border))boolean
Numberlong 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:

Note. The style attribute for this interface is reserved for future usage.

IDL Definition
interface HTMLElement : Element {
           attribute  DOMString            id;
           attribute  DOMString            title;
           attribute  DOMString            lang;
           attribute  DOMString            dir;
           attribute  DOMString            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  DOMString            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  DOMString            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  DOMString            charset;
           attribute  DOMString            href;
           attribute  DOMString            hreflang;
           attribute  DOMString            media;
           attribute  DOMString            rel;
           attribute  DOMString            rev;
           attribute  DOMString            target;
           attribute  DOMString            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  DOMString            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  DOMString            content;
           attribute  DOMString            httpEquiv;
           attribute  DOMString            name;
           attribute  DOMString            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  DOMString            href;
           attribute  DOMString            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  DOMString            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  DOMString            media;
           attribute  DOMString            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  DOMString            aLink;
           attribute  DOMString            background;
           attribute  DOMString            bgColor;
           attribute  DOMString            link;
           attribute  DOMString            text;
           attribute  DOMString            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  DOMString            name;
           attribute  DOMString            acceptCharset;
           attribute  DOMString            action;
           attribute  DOMString            enctype;
           attribute  DOMString            method;
           attribute  DOMString            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  DOMString            type;
           attribute  long                 selectedIndex;
           attribute  DOMString            value;
  readonly attribute  long                 length;
  readonly attribute  HTMLFormElement      form;
  readonly attribute  HTMLCollection       options;
           attribute  boolean              disabled;
           attribute  boolean              multiple;
           attribute  DOMString            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  DOMString            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  DOMString            text;
           attribute  long                 index;
           attribute  boolean              disabled;
           attribute  DOMString            label;
  readonly attribute  boolean              selected;
           attribute  DOMString            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  DOMString            defaultValue;
           attribute  boolean              defaultChecked;
  readonly attribute  HTMLFormElement      form;
           attribute  DOMString            accept;
           attribute  DOMString            accessKey;
           attribute  DOMString            align;
           attribute  DOMString            alt;
           attribute  boolean              checked;
           attribute  boolean              disabled;
           attribute  long                 maxLength;
           attribute  DOMString            name;
           attribute  boolean              readOnly;
           attribute  DOMString            size;
           attribute  DOMString            src;
           attribute  long                 tabIndex;
  readonly attribute  DOMString            type;
           attribute  DOMString            useMap;
           attribute  DOMString            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  DOMString            defaultValue;
  readonly attribute  HTMLFormElement      form;
           attribute  DOMString            accessKey;
           attribute  long                 cols;
           attribute  boolean              disabled;
           attribute  DOMString            name;
           attribute  boolean              readOnly;
           attribute  long                 rows;
           attribute  long                 tabIndex;
  readonly attribute  DOMString            type;
           attribute  DOMString            value;
  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.
value
The current textual content of the multi-line text field. If the entirety of the data can not fit into a single wstring, the implementation may truncate the data.
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  DOMString            accessKey;
           attribute  boolean              disabled;
           attribute  DOMString            name;
           attribute  long                 tabIndex;
  readonly attribute  DOMString            type;
           attribute  DOMString            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  DOMString            accessKey;
           attribute  DOMString            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  DOMString            accessKey;
           attribute  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            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  DOMString            color;
           attribute  DOMString            face;
           attribute  DOMString            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  DOMString            color;
           attribute  DOMString            face;
           attribute  DOMString            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  DOMString            align;
           attribute  boolean              noShade;
           attribute  DOMString            size;
           attribute  DOMString            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  DOMString            cite;
           attribute  DOMString            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  DOMString            accessKey;
           attribute  DOMString            charset;
           attribute  DOMString            coords;
           attribute  DOMString            href;
           attribute  DOMString            hreflang;
           attribute  DOMString            name;
           attribute  DOMString            rel;
           attribute  DOMString            rev;
           attribute  DOMString            shape;
           attribute  long                 tabIndex;
           attribute  DOMString            target;
           attribute  DOMString            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  DOMString            lowSrc;
           attribute  DOMString            name;
           attribute  DOMString            align;
           attribute  DOMString            alt;
           attribute  DOMString            border;
           attribute  DOMString            height;
           attribute  DOMString            hspace;
           attribute  boolean              isMap;
           attribute  DOMString            longDesc;
           attribute  DOMString            src;
           attribute  DOMString            useMap;
           attribute  DOMString            vspace;
           attribute  DOMString            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  DOMString            code;
           attribute  DOMString            align;
           attribute  DOMString            archive;
           attribute  DOMString            border;
           attribute  DOMString            codeBase;
           attribute  DOMString            codeType;
           attribute  DOMString            data;
           attribute  boolean              declare;
           attribute  DOMString            height;
           attribute  DOMString            hspace;
           attribute  DOMString            name;
           attribute  DOMString            standby;
           attribute  long                 tabIndex;
           attribute  DOMString            type;
           attribute  DOMString            useMap;
           attribute  DOMString            vspace;
           attribute  DOMString            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  DOMString            name;
           attribute  DOMString            type;
           attribute  DOMString            value;
           attribute  DOMString            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  DOMString            align;
           attribute  DOMString            alt;
           attribute  DOMString            archive;
           attribute  DOMString            code;
           attribute  DOMString            codeBase;
           attribute  DOMString            height;
           attribute  DOMString            hspace;
           attribute  DOMString            name;
           attribute  DOMString            object;
           attribute  DOMString            vspace;
           attribute  DOMString            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  DOMString            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  DOMString            accessKey;
           attribute  DOMString            alt;
           attribute  DOMString            coords;
           attribute  DOMString            href;
           attribute  boolean              noHref;
           attribute  DOMString            shape;
           attribute  long                 tabIndex;
           attribute  DOMString            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  DOMString            text;
           attribute  DOMString            htmlFor;
           attribute  DOMString            event;
           attribute  DOMString            charset;
           attribute  boolean              defer;
           attribute  DOMString            src;
           attribute  DOMString            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;
  readonly attribute  HTMLCollection       tBodies;
           attribute  DOMString            align;
           attribute  DOMString            bgColor;
           attribute  DOMString            border;
           attribute  DOMString            cellPadding;
           attribute  DOMString            cellSpacing;
           attribute  DOMString            frame;
           attribute  DOMString            rules;
           attribute  DOMString            summary;
           attribute  DOMString            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 null if none exists.
tFoot
Returns the table's TFOOT, or null if none exists.
rows
Returns a collection of all the rows in the table, including all in THEAD, TFOOT, all TBODY elements.
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 Value
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 Value
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 Value
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 Value
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  DOMString            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  DOMString            align;
           attribute  DOMString            ch;
           attribute  DOMString            chOff;
           attribute  long                 span;
           attribute  DOMString            vAlign;
           attribute  DOMString            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  DOMString            align;
           attribute  DOMString            ch;
           attribute  DOMString            chOff;
           attribute  DOMString            vAlign;
  readonly 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 Value
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  DOMString            align;
           attribute  DOMString            bgColor;
           attribute  DOMString            ch;
           attribute  DOMString            chOff;
           attribute  DOMString            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 TD cell into this row.
Parameters
index

The place to insert the cell.

Return Value
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  DOMString            abbr;
           attribute  DOMString            align;
           attribute  DOMString            axis;
           attribute  DOMString            bgColor;
           attribute  DOMString            ch;
           attribute  DOMString            chOff;
           attribute  long                 colSpan;
           attribute  DOMString            headers;
           attribute  DOMString            height;
           attribute  boolean              noWrap;
           attribute  long                 rowSpan;
           attribute  DOMString            scope;
           attribute  DOMString            vAlign;
           attribute  DOMString            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  DOMString            cols;
           attribute  DOMString            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  DOMString            frameBorder;
           attribute  DOMString            longDesc;
           attribute  DOMString            marginHeight;
           attribute  DOMString            marginWidth;
           attribute  DOMString            name;
           attribute  boolean              noResize;
           attribute  DOMString            scrolling;
           attribute  DOMString            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  DOMString            align;
           attribute  DOMString            frameBorder;
           attribute  DOMString            height;
           attribute  DOMString            longDesc;
           attribute  DOMString            marginHeight;
           attribute  DOMString            marginWidth;
           attribute  DOMString            name;
           attribute  DOMString            scrolling;
           attribute  DOMString            src;
           attribute  DOMString            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.