Right click anywhere on this page to see how this context menu works

Home
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Menu item 3
Menu item 4

<ul id="contextMenu">
	<li><a href="http://www.dhtmlgoodies.com"><img src="images/button.gif">Home</a></li>
	<li><a href="#" onclick="document.getElementById('htmlSource').style.display='block';return false">View HTML</a></li>
	<li><a href="#">Menu item 3</a></li>
	<li><a href="#">Menu item 4</a></li>
</ul>

This is a script from DHTMLGoodies.com, A library of Free DHTML, Ajax and Javascript codes