HTML Element: <map>
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The
HTML <map> element indicates a
client-side image-map (i.e. an image with clickable areas). It needs a name attribute,
which creates a relationship between the image and the map. It typically
contains one or more <area>
elements that indicate which parts of the image map are clickable. In HTML 5,
if the id attribute
of the <map> element is
specified then it needs to have the same value as the name attribute.
The attributes it can take
(other than HTML
global attributes and HTML event attributes)
include:
|
Attribute
|
Description
|
More
|
|
name
|
Name of associated element
|
Here
|
To create or access such an element in JavaScript
see here. The
corresponding HTML DOM
object supports standard
DOM properties and methods, and additional properties with the same name and
meaning as the attributes of the underlying HTML element referred to above. It
also supports the following additional properties:
|
Property
|
Description
|
More
|
|
areas
|
Returns a collection of
all <area>
elements linked to the <map>
element
|
Here
|
|
images
|
Returns a collection of
all <img>
and <object>
elements linked to the <map>
element
|
Here
|
The default style
applicable to this element is shown here.
EXAMPLE:
HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head></head>
<body>
<p>Click on one of the two images of each pair to see it in isolation</p>
<br>Created using HTML:<br>
<img src="Pictures/Shape1and2.png" alt="2 images" usemap="#images">
<map name="images">
<area shape="rect" coords="0,0,102,99" alt="Shape 1" href="Pictures/Shape1.jpg">
<area shape="rect" coords="103,0,208,99" alt="Shape 2" href="Pictures/Shape2.jpg">
</map>
<br><br>Created using JavaScript:<br>
<img id="img2" src="Pictures/Shape1and2.png" alt="Shapes 1 and 2" usemap="#images2">
<span id="element"></span>
<script>
var x = document.createElement("MAP");
x.setAttribute("name","images2");
var x1 = document.createElement("AREA");
x1.setAttribute("shape","rect");
x1.setAttribute("coords","0,0,102,99");
x1.setAttribute("alt","Shape1 (using JavaScript)");
x1.setAttribute("href","Pictures/Shape1.jpg");
x.appendChild(x1);
var x2 = document.createElement("AREA");
x2.setAttribute("shape","rect");
x2.setAttribute("coords","103,0,208,99");
x2.setAttribute("alt","Shape2 (using JavaScript)");
x2.setAttribute("href","Pictures/Shape2.jpg");
x.appendChild(x2);
document.getElementById("element").appendChild(x);
document.getElementById("img2").setAttribute("usemap","#images2");
</script>
</body>
</html>
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