activateMenu = function(nav) {
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";
}}}}
}

window.onload= function(){activateMenu('nav')}
function showimgpopup(address){
newpopup = window.open(address, '', 'scrollbars=yes, resizable=no,left=100, top=100, screenX=100, screenY=100');
}