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ID Attribute | id Property


Retrieves the string identifying the object.

Syntax

HTML<ELEMENT ID = sID ... >
Scripting[ sID = ] object.id

Possible Values

sIDAny alphanumeric string that begins with a letter. The underscore (_) can also be used.

In Microsoft® Internet Explorer 5 and later, the property is read/write. The property has no default value.

Remarks

In versions earlier than Internet Explorer 5, the property is read-only.

The id should be unique throughout the scope of the current document. If a document contains more than one object with the same identifier, the objects are exposed as a collection that can be referenced only in ordinal position.

Example

This example sets the ID attribute and then passes it to a function to manipulate the object that the attribute is attached to.

Sample Code

<SCRIPT>
function checkCols(oObject)
{
    var iColumns = oObject.cols;
    alert (iColumns);
}
</SCRIPT>
</HEAD>
<BODY>
<TABLE ID=oTable BORDER COLS=3 onclick="checkCols(this)">
<TR><TD>Column 1</TD><TD>Column 2</TD><TD>Column 3</TD></TR>
</TABLE>

This feature requires Internet Explorer 4.0 or later. Click the icon below to install the latest version. Then reload this page to view the sample.
Microsoft Internet Explorer

Applies To

[ Object Name ]
PlatformVersion
Win16:
Win32:
Mac:
Unix:
WinCE:
A, ACRONYM, ADDRESS, APPLET, AREA, B, BASE, BASEFONT, BDO, BGSOUND, BIG, BLOCKQUOTE, BODY, BR, BUTTON, CAPTION, CENTER, CITE, CODE, COL, COLGROUP, COMMENT, custom, DD, DEL, DFN, DIR, DIV, DL, DT, EM, EMBED, FIELDSET, FONT, FORM, FRAME, FRAMESET, HEAD, Hn, HR, HTML, I, IFRAME, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, INS, ISINDEX, KBD, LABEL, LEGEND, LI, LINK, LISTING, MAP, MARQUEE, MENU, NEXTID, NOBR, NOFRAMES, NOSCRIPT, OBJECT, OL, OPTION, P, PLAINTEXT, PRE, Q, RT, RUBY, S, SAMP, SCRIPT, SELECT, SMALL, SPAN, STRIKE, STRONG, styleSheet, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TITLE, TR, TT, U, UL, VAR, WBR, XML, XMP


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