Change Div Background Onclick

xavier039 · #1 (**permalink**) 07-06-10, 02:31 PM

I am relatively new to working with Javascript so I am hoping somebody can help me out here.

What I would like to do is have the div background change when a user clicks on another image or link.

I set up a few classes in CSS each with their own background image. Here is what I have but I am not sure what I am missing. Thanks so much!!

HTML Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>TheWebsite</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<style type="text/css">
#hdr {
	height : 150px;
	width : 100%;
	background-image: url(gang/Bass.png);
	background-repeat: no-repeat;
  }
.hdr1 {
	height : 150px;
	width : 100%;
	background-image: url(gang/carl.png);
	background-repeat: no-repeat;
  }
.hdr2 {
	height : 150px;
	width : 100%;
	background-image: url(gang/Chet.png);
	background-repeat: no-repeat;
  }
.hdr3 {
	height : 150px;
	width : 100%;
	background-image: url(gang/Mel.png);
	background-repeat: no-repeat;
  }
</style>
 
</head>
<body >
<div id="hdr">Sometext</div>

<div><b>Alternate Background Images</b> -<br /> 
    <a href="#none" onclick="document.getElementById('hdr').className ='hdr1'">Option 1</a>
    <a href="#none" onclick="document.getElementById('hdr').className ='hdr2'">Option 2</a>
    <a href="#none" onclick="document.getElementById('hdr').className ='hdr3'">Option 3</a>
    <a href="#none" onclick="document.getElementById('hdr').className ='hdr'">Default</a>
  </div>
  
</body>
</html>

UnrealEd · #2 (**permalink**) 07-08-10, 11:45 AM

works fine on Firefox 3.6.6 on Windows 7

drsim · #3 (**permalink**) 07-09-10, 12:55 AM

tested and working fine on firefox 3.6 , IE 7, IE 8 . the only reason why it is not working on your side could be the correct image path.
Also give a default class to the div, because your JS code is only changing the class. otherwise use setAttribute function to add class attribute. hope this helps