var zindex=100;
var ns4=document.layers;
var ns6=document.getElementById&&!document.all;
var ie4=document.all;
var opr=navigator.userAgent.indexOf("Opera");

function dropit(e,whichone)
{curmenuID=ns6?document.getElementById(whichone).id:eval(whichone).id;
 if(window.themenu&&themenu.id!=curmenuID)themenuStyle.visibility=ns4?"hide":"hidden";
 themenu=ns6?document.getElementById(whichone):eval(whichone);
 themenuStyle=(ns6||ie4)?themenu.style:themenu;
 themenuoffsetX=(ie4&&opr==-1)?document.body.scrollLeft:0;
 themenuoffsetY=(ie4&&opr==-1)?document.body.scrollTop:0;
 themenuStyle.left=ns6||ns4?e.pageX-e.layerX:themenuoffsetX+event.clientX-event.offsetX-2;
 themenuStyle.top=ns6||ns4?e.pageY-e.layerY:themenuoffsetY+event.clientY-event.offsetY-2;
 hiddenconst=(ns6||ie4)?"hidden":"hide";
 if(themenuStyle.visibility==hiddenconst)
 {themenuStyle.visibility=(ns6||ie4)?"visible":"show";
  themenuStyle.zIndex=zindex++;
 }else hidemenu();
 return false;
}
function hidemenu()
{if((ie4||ns6)&&window.themenu)themenuStyle.visibility="hidden"; 
 else if(ns4)themenu.visibility="hide";
}
if(ie4||ns6)document.onclick=hidemenu;