/** 
* Based on Folding Menu Tree 
* Dynamic Drive (www.dynamicdrive.com)
* For full source code, installation instructions,
* 100's more DHTML scripts, and Terms Of
* Use, visit dynamicdrive.com
*
* Updated to support arbitrarily nested lists
* by Mark Quinn (mark@robocast.com) November 2nd 1998
*/
function change()
{
	if(!document.all)
		return;
	if (event.srcElement.id!="foldheader")
		return;	
	
	if (event.srcElement.id=="foldheader")
	{
		var srcIndex = event.srcElement.sourceIndex
		var nested = document.all[srcIndex+1]
		if (nested.style.display=="none") 
		{
			nested.style.display='block'
		}
		else 
		{
			nested.style.display="none"		
		}
	}
}

document.onclick=change