Indicates a comment that is not displayed.

Members Table

The following table lists the members exposed by the comment object.

Attributes/Properties

Attribute	Property	Description
	ariaBusy	Sets or retrieves the busy state of this element.
	ariaChecked	Sets or retrieves the checked state of this element.
	ariaDisabled	Sets or retrieves the disabled state of this element.
	ariaExpanded	Sets or retrieves the expanded state of this element.
	ariaHaspopup	Sets or retrieves a value indicating whether this element may display a pop-up window.
	ariaHidden	Sets or retrieves the hidden state of this element.
	ariaInvalid	Sets or retrieves the invalid state of this element.
	ariaLevel	Sets or retrieves the level of this element.
	ariaMultiselect	Sets or retrieves the multiple-selection state of this element.
	ariaPosinset	Sets or retrieves the current position of an item within a set.
	ariaPressed	Sets or retrieves the pressed state of a button that can be toggled.
	ariaReadonly	Sets or retrieves the read-only state of this element.
	ariaRequired	Sets or retrieves the form-completion requirement of this element.
	ariaSecret	Sets or retrieves the secret state of this element.
	ariaSelected	Sets or retrieves the selection state of this element.
	ariaSetsize	Sets or retrieves the set size of this element.
	attributes	Retrieves a collection of attributes of the object.
	canHaveChildren	Gets a value indicating whether the object can contain child objects.
	canHaveHTML	Sets or retrieves the value indicating whether the object can contain rich HTML markup.
DATA	data	Sets or retrieves the URL that references the data of the object.
	firstChild	Retrieves a reference to the first child in the childNodes collection of the object.
ID	id	Retrieves the string identifying the object.
	isContentEditable	Gets the value that indicates whether the user can edit the contents of the object.
	isDisabled	Gets the value that indicates whether the user can interact with the object.
	isMultiLine	Retrieves the value indicating whether the content of the object contains one or more lines.
	isTextEdit	Retrieves whether a TextRange object can be created using the object.
LANG	lang	Sets or retrieves the language to use.
	lastChild	Retrieves a reference to the last child in the childNodes collection of an object.
	length	Retrieves the number of objects in a collection.
	nextSibling	Retrieves a reference to the next child of the parent for the object.
	nodeName	Retrieves the name of a particular type of node.
	nodeType	Retrieves the type of the requested node.
	nodeValue	Sets or retrieves the value of a node.
	offsetParent	Retrieves a reference to the container object that defines the offsetTop and offsetLeft properties of the object.
	outerText	Sets or retrieves the text of the object.
	ownerDocument	Retrieves the document object associated with the node.
	parentElement	Retrieves the parent object in the object hierarchy.
	parentNode	Retrieves the parent object in the document hierarchy.
	parentTextEdit	Retrieves the container object in the document hierarchy that can be used to create a TextRange containing the original object.
	previousSibling	Retrieves a reference to the previous child of the parent for the object.
	readyState	Retrieves the current state of the object.
	role	Sets or retrieves the role for this element.
	scopeName	Gets the namespace defined for the element.
	sourceIndex	Retrieves the ordinal position of the object, in source order, as the object appears in the document's all collection.
	tagName	Retrieves the tag name of the object.
	tagUrn	Sets or gets the Uniform Resource Name (URN) specified in the namespace declaration.
	text	Retrieves or sets the text of the object as a string.
	uniqueID	Retrieves an autogenerated, unique identifier for the object.

Behaviors

Behavior	Description
clientCaps	Provides information about features supported by Internet Explorer, as well as a way for installing browser components on demand.
download	Downloads a file and notifies a specified callback function when the download is complete.
homePage	Contains information about a user's homepage.

Collections

Collection	Description
attributes	Retrieves a collection of attributes of the object.
behaviorUrns	Returns a collection of Uniform Resource Name (URN) strings identifying the behaviors attached to the element.
childNodes	Retrieves a collection of HTML Elements and TextNode objects that are direct descendants of the specified object.

Events

Event	Description
onpropertychange	Fires when a property changes on the object.
onreadystatechange	Fires when the state of the object has changed.

Methods

Method	Description
addBehavior	Attaches a behavior to the element.
appendChild	Appends an element as a child to the object.
appendData	Adds a new character string to the end of the object.
applyElement	Makes the element either a child or parent of another element.
attachEvent	Binds the specified function to an event, so that the function gets called whenever the event fires on the object.
clearAttributes	Removes all attributes and values from the object.
cloneNode	Copies a reference to the object from the document hierarchy.
componentFromPoint	Returns the component located at the specified coordinates via certain events.
deleteData	Removes a specified range of characters from the object.
detachEvent	Unbinds the specified function from the event, so that the function stops receiving notifications when the event fires.
dragDrop	Initiates a drag event.
fireEvent	Fires a specified event on the object.
getAdjacentText	Returns the adjacent text string.
getAttribute	Retrieves the value of the specified attribute.
getAttribute	Retrieves the value of the specified attribute.
getAttributeNode	Gets an attribute object referenced by the attribute.name property.
getBoundingClientRect	Retrieves an object that specifies the bounds of a collection of TextRectangle objects.
getClientRects	Retrieves a collection of rectangles that describes the layout of the contents of an object or range within the client. Each rectangle describes a single line.
hasAttribute	Determines whether an attribute with the specified name exists.
hasChildNodes	Returns a value that indicates whether the object has children.
insertAdjacentElement	Inserts an element at the specified location.
insertAdjacentHTML	Inserts the given HTML text into the element at the location.
insertAdjacentText	Inserts the given text into the element at the specified location.
insertBefore	Inserts an element into the document hierarchy as a child node of a parent object.
insertData	Inserts a new character string in the object at a specified offset.
mergeAttributes	Copies all read/write attributes to the specified element.
normalize	Merges adjacent TextNode objects to produce a normalized document object model.
removeAttribute	Removes the given attribute from the object.
removeAttribute	Removes the given attribute from the object.
removeAttributeNode	Removes an attribute object from the object.
removeBehavior	Detaches a behavior from the element.
removeChild	Removes a child node from the object.
removeNode	Removes the object from the document hierarchy.
replaceAdjacentText	Replaces the text adjacent to the element.
replaceChild	Replaces an existing child element with a new child element.
replaceData	Replaces a specified range of characters in the object with a new character string.
replaceNode	Replaces the object with another element.
scrollIntoView	Causes the object to scroll into view, aligning it either at the top or bottom of the window.
setAttribute	Sets the value of the specified attribute.
setAttribute	Sets the value of the specified attribute.
setAttributeNode	Sets an attribute object node as part of the object.
substringData	Extracts a range of characters from the object.
swapNode	Exchanges the location of two objects in the document hierarchy.

Styles

Style attribute	Style property	Description
background-position-x	backgroundPositionX	Sets or retrieves the x-coordinate of the backgroundPosition property.
background-position-y	backgroundPositionY	Sets or retrieves the y-coordinate of the backgroundPosition property.
behavior	behavior	Sets or retrieves the location of the Dynamic HTML (DHTML) behavior.
	pixelBottom	Sets or retrieves the bottom position of the object.
	pixelHeight	Sets or retrieves the height of the object.
	pixelLeft	Sets or retrieves the left position of the object.
	pixelRight	Sets or retrieves the right position of the object.
	pixelTop	Sets or retrieves the top position of the object.
	pixelWidth	Sets or retrieves the width of the object.
	posBottom	Sets or retrieves the bottom position of the object in the units specified by the bottom attribute.
	posHeight	Sets or retrieves the height of the object in the units specified by the height attribute.
	posLeft	Sets or retrieves the left position of the object in the units specified by the left attribute.
	posRight	Sets or retrieves the right position of the object in the units specified by the right attribute.
	posTop	Sets or retrieves the top position of the object in the units specified by the top attribute.
	posWidth	Sets or retrieves the width of the object in the units specified by the width attribute.
text-autospace	textAutospace	Sets or retrieves the autospacing and narrow space width adjustment of text.
text-underline-position	textUnderlinePosition	Sets or retrieves the position of the underline decoration that is set through the textDecoration property of the object.

Remarks

The COMMENT element is treated as a no-scope element and does not expose any children.

The comment.length property, available as of Microsoft Internet Explorer 6, returns the number of characters in the object.

This element is not rendered.

This element requires a closing tag.

Standards Information

This object is a Microsoft extension to HTML .

See Also

HTML Comment Element