USEMAP Attribute | useMap Property

Sets or retrieves the URL, often with a bookmark extension (#name), to use as a client-side image map.

Syntax

HTML	<ELEMENT USEMAP = sURL... >
Scripting	object.useMap [ = sURL ]

Possible Values

sURL	String that specifies or receives the URL of the image map.

The property is read/write. The property has no default value.

Expressions can be used in place of the preceding value(s), as of Microsoft® Internet Explorer 5. .

Remarks

The useMap property identifies the image as a client-side image map by associating a map object with the image. This map object contains area objects that define regions within the image. The user can click these regions to navigate to a designated URL.

You can dynamically assign the maps to the image through the useMap property.

Example

This example specifies map1 as the image map underlying image.gif. The map can be changed to another map, map2, by clicking the button.

<MAP NAME="map1">
<AREA NAME="area1" COORDS="0,0,40,40" HREF="doc1.htm" 
    TARGET="frame1">
<AREA NAME="area2" COORDS="40,0,80,40" HREF="doc2.htm" 
    TARGET="frame1">
<AREA NAME="area3" COORDS="10,40,40,80" HREF="doc3.htm" 
    TARGET="frame1">
<AREA NAME="area4" COORDS="40,40,80,80" HREF="doc4.htm" 
    TARGET="frame1">
</MAP>
:
<IMG USEMAP="#map1" ID=idImg SRC="image.gif">
:
<BUTTON onclick="idImg.useMap='#map2'">
    Change Maps</BUTTON>

Standards Information

This property is defined in HTML 3.2  and is defined in World Wide Web Consortium (W3C) Document Object Model (DOM) Level 1 .

Applies To

	IMG, OBJECT, INPUT