function ohide() 
{
 o=document.getElementById("ko");
  o.style.visibility="hidden";
}
function akt(o,h) 
{
   w= (o.offsetWidth);     
	 g= (o.offsetHeight);    
	 var x =0, y = 0;
   if (o.offsetParent) 
   {   
  	 x = o.offsetLeft;   
  	 y = o.offsetTop;
  	 while (o = o.offsetParent) 
  	 			{
          	 x += o.offsetLeft;
          	 y += o.offsetTop;
    	 		}
	 }
   od=document.getElementById("ko");
   od.style.position="absolute"; od.style.visibility = "visible";
	 od.style.top=(y) + "px"; 
	 od.style.left=(x + w) +"px";
 	 od.innerHTML=h;   
}