Now, there is more simple way using CSS we can set more than one background images to the DIV.
See the following code:
<style type="text/css">
<!--
#test {background:
url(topleft.gif) 0 0 no-repeat,
url(topright.gif) 100% 0 no-repeat,
url(botleft.gif) 0 100% no-repeat,
url(botright.gif) 100% 100% no-repeat;
padding: 25px;
background-color: #008000; color: #FFF;
font: bold small Arial, sans-serif;}
-->
</style>
And apply the above style to the DIV as follows:
<div id="test">
Let's add four images to a single background! I mean, why not?
</div>