function menus_init() { 
     if (document.all&&document.getElementById) { 
          menuList = document.getElementsByTagName("UL"); 
          if (menuList.length > 0) 
          { 
               for (x=0; x<menuList.length; x++) 
               { 
                    menuRoot = menuList[x]; 
                    for (i=0; i<menuRoot.childNodes.length; i++) { 
                         menuNode = menuRoot.childNodes[i]; 
                         if (menuNode.nodeName=="LI") { 
                              if (menuNode.className == "dropdown") 
                              { 
                                   menuNode.onmouseover=function() { 
                                        this.className+=" over"; 
                                   } 
                                   menuNode.onmouseout=function() { 
                                        this.className=this.className.replace(" over", ""); 
                                   } 
                              } 
                         } 
                    } 
               } 
          } 
     } 
} 
addEvent(window, "load", menus_init); 
 
// scott andrew (www.scottandrew.com) wrote this function. thanks, scott! 
// adds an eventListener for browsers which support it. 
function addEvent(obj, evType, fn){ 
  if (obj.addEventListener){ 
    obj.addEventListener(evType, fn, true); 
    return true; 
  } else if (obj.attachEvent){ 
     var r = obj.attachEvent("on"+evType, fn); 
    return r; 
  } else { 
     return false; 
  } 
}