var menuids=new Array("verticalmenu","verticalmenu1","verticalmenu2","verticalmenu3") //Enter id(s) of UL menus, separated by commas
var submenuoffset=-2 //Offset of submenus from main menu. Default is -2 pixels.  

function createcssmenu(){  
  for (var i=0; i<menuids.length; i++){  
    var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul")  
    for (var t=0; t<ultags.length; t++){  
      var spanref=document.createElement("span")  
      spanref.className="arrowdiv" 
      spanref.innerHTML="&nbsp;&nbsp;" 
      ultags[t].parentNode.getElementsByTagName("a")[0].appendChild(spanref)  
      ultags[t].parentNode.onmouseover=function(){  
       this.getElementsByTagName("ul")[0].style.left=this.parentNode.offsetWidth+submenuoffset+"px" 
       this.getElementsByTagName("ul")[0].style.display="block" 
      }  
      ultags[t].parentNode.onmouseout=function(){  
       this.getElementsByTagName("ul")[0].style.display="none" 
      }  
    }  
  }  
}  

if (window.addEventListener)  
window.addEventListener("load", createcssmenu, false)  
else if (window.attachEvent)  
window.attachEvent("onload", createcssmenu)