activateMenu = function(nav)
{
  /* currentStyle restricts the Javascript to IE only */

  if (document.all && document.getElementById(nav).currentStyle) 
  {  
        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";
              }
            }
        }
    }
}


var ROTOR_isIE = false;
if((document.all)&&(navigator.appVersion.indexOf("MSIE")!=-1))
  ROTOR_isIE = true;

if(ROTOR_isIE)
	ROTOR_addIEEvents(window, ["load"], function(){activateMenu('menu')});
else
	ROTOR_addnotIEEvents(window, ["load"], function(){activateMenu('menu')});


function ROTOR_addIEEvents(el, evs, func) {
	for (var i in evs)
  {
		el.attachEvent("on" + evs[i], func);
  }
}

function ROTOR_addnotIEEvents(el, evs, func) {
	for (var i in evs)
  {
 		el.addEventListener(evs[i], func, true);
  }
}