activateMenu = function(nav) {
	if(document.all && document.getElementById(nav).currentStyle){
		// only MSIE supports document.all
		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";
				}
			}
		}
	}
}