activateMenu = function(nav) {
			var ua = navigator.userAgent.toLowerCase(); 
			var isIE = ((ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1)); 
			var ieVersion = parseFloat(ua.substring(ua.indexOf('msie ') + 5));
			//if(ieVersion == 6){
		   		if (document.all && document.getElementById(nav).currentStyle) {  
					var navroot = document.getElementById(nav);
					var lis=navroot.getElementsByTagName("LI");  
					for (i=0; i<lis.length; i++) {
						if(lis[i].lastChild.tagName=="UL"){
							lis[i].onmouseover=function() {		
							   this.lastChild.style.display="block";
							}
							lis[i].onmouseout=function() {                       
								this.lastChild.style.display="none";
							}
						}
					}
				}
			//}
		}
		
//		getElementByTagName(body).onload= function(){
//		   activateMenu('nav');  
//		}