activateMenu = function(nav) {

    /* currentStyle restricts the Javascript to IE only */
	if (document.all && document.getElementById(nav).currentStyle) {  
        var navroot = document.getElementById(nav);
        
        /* Get all the list items within the menu */
        var lis=navroot.getElementsByTagName("LI");  
        for (i=0; i<lis.length; i++) {
        
           /* If the LI has another menu level */
            if(lis[i].lastChild.tagName=="UL"){
            
                /* assign the function to the LI */
             	lis[i].onmouseover=function() {	
                
                   /* display the inner menu */
                   this.lastChild.style.display="block";
                }
                lis[i].onmouseout=function() {                       
                   this.lastChild.style.display="none";
                }
            }
        }
    }
}
window.onload= function(){
    /* pass the function the id of the top level UL */
    /* remove one, when only using one menu */
    //ctivateMenu('nav'); 
    //activateMenu('vertnav'); 
}

//ORIGINAL
//startList = function()
//{
//	if (document.all&&document.getElementById)
//	{
//		navRoot = document.getElementById("nav");
//		for (i=0; i<navRoot.childNodes.length; i++)
//		{
//			node = navRoot.childNodes[i];
//			if (node.nodeName=="LI")
//			{
//				node.onmouseover=function()
//				{
//					this.className+=" over";
//				}
//				node.onmouseout=function()
//				{
//					this.className=this.className.replace(" over", "");
//				}
//			}
//		}
//	}
//}
//window.onload=startList;