function zobraz(co){
            document.getElementById(co).style.display='block';
            
}
function skryj(co){
            document.getElementById(co).style.display='none';
}
 
function zobrazokno(e,num, prispevek, kniha)
{
	document.value=prispevek;

	kam=-20;
    
    if(document.getElementById)
      {
       
       elm=document.getElementById(num)
       if (document.all && !window.opera) {
          x = event.clientX + document.body.scrollLeft + kam;
          y = event.clientY + document.body.scrollTop + 0;  
        }  
        else {
          x = e.pageX + kam;
          y = e.pageY + 0;   
         }
        if (document.all && !window.opera) {
          elm.style.pixelLeft = x;
          elm.style.pixelTop = y;
         }
         else {
          elm.style.left = x + "px";
          elm.style.top = y + "px";
         }
        

       elm.style.display = "block";
      }
}
document.getElementById('telo').onmouseover = function() {document.getElementById('svokno').style.display='none';}