activateMenu = function(nav) {
		if(document.getElementById(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";
						}
					}
				}
			}
		}
    }