var _d=document; var mX; var mY; var last_o=0;
function cc(o,c){o.className=c;}
function nv_mXmY(oid){if(!(o=_d.getElementById(oid))){return false;} mX=o.offsetLeft; mY=o.offsetTop; var parent = o.offsetParent; while(parent && parent.tagName != "BODY"){mX+=parent.offsetLeft; mY+=parent.offsetTop; parent=parent.offsetParent;}}
//------------------------------------------------------ 
function nv_mn(o,ox,oy){
  nv_hd();
  _d.getElementById('div_bkg').style.visibility='visible';
nv_mXmY(o.id);
  last_o='div_'+o.id;
  d=_d.getElementById(last_o);
  d.style.left=mX+ox;
  d.style.top=mY+oy;
  d.style.visibility='visible';
 } 
//------------------------------------------------------ 
function nv_hd(){
  if(last_o){
    _d.getElementById(last_o).style.visibility='hidden';
    _d.getElementById('div_bkg').style.visibility='hidden';
   }
 } 

/*
function nv_hd(oid){
  o=_d.getElementById(oid);
  d.style.visibility='hidden';
 }
*/ 
//------------------------------------------------------