function getOffsetTop(el, p) { 
var _t = el.offsetTop; 
while (el = el.offsetParent) { 
if (el == p) break;
 _t += el.offsetTop 
 } 
 return _t 
 }; 
 function getOffsetLeft(el, p) { 
 var _l = el.offsetLeft; 
 while (el = el.offsetParent) {
  if (el == p) break;
   _l += el.offsetLeft 
   } 
   return _l 
   }; 
   
   
   var tt; 
   var curMenu;  
   function mouseover(th, menu) { 
   if (tt) 
   clearTimeout(tt); 
   displayMenu(false); 
   menu = document.getElementById('menu' + menu);
   menu.style.left = th.offsetLeft + 'px';
   menu.style.bottom = th.offsetHeight + 'px';  
   curMenu = menu; 
   displayMenu(true) 
   }
   function mouseover2(th, menu) { 
   if (tt) 
   clearTimeout(tt); 
   displayMenu(false); 
   menu = document.getElementById('menu' + menu); 
   menu.style.left = getOffsetLeft(th) +th.offsetWidth + 'px'; 
   menu.style.top = getOffsetTop(th) + 'px'; 
   curMenu = menu; 
   displayMenu(true) 
   } 
   function mouseout() { 
   tt = setTimeout('displayMenu(false)', 200) 
   } 
   function _mouseover() { 
   if (tt) clearTimeout(tt); 
   displayMenu(true) 
   } 
   function _mouseout() {
    displayMenu(false)
     } 

function displayMenu(display) { 
if (curMenu) { 
curMenu.style.display = display ? 'block' : 'none' 
}
}