var curPop = null;
 function clearCurrent() {
            // Hide the pop-up menu that is currently displayed
            if (null != curPop)
                        curPop.style.display = "";
            curPop = null;
 }

function popup() {
           clearCurrent();	  
            var el = event.srcElement;
            // Display a new menu option
            if (("P" == el.tagName) &&
                     ("menu" == el.parentElement.parentElement.parentElement.parentElement.id)) {
                             // Position and display the pop-up menu
                             var elpop = document.all[el.sourceIndex + 1];
                            elpop.style.pixelLeft = el.parentElement.offsetLeft+5;
                            elpop.style.pixelTop  = el.parentElement.offsetTop + el.offsetTop + document.all.menu.offsetTop+18;
                            elpop.style.display = "block";
                            curPop = elpop;
             }
             event.cancelBubble = true;
}


 function highlight() {
        // Highlight and popup  the menu options
        if (null != event.fromElement)
              if ((event.fromElement.tagName == "P") &&
	     	  (event.fromElement.parentElement.parentElement.parentElement.parentElement.id == "menu"))  {
                      event.fromElement.className = "";
         }
            
         if (null != event.toElement)
               if ((event.toElement.tagName == "P") && (event.toElement.parentElement.parentElement.parentElement.parentElement.id == "menu"))  {
                      popup();					
                      event.toElement.className = "over";
         }
}