function changeImage(imgName, imgFile)
   {
    if( document.images )
      document.images[imgName].src = imgFile;
   }

  function popUpWin (url, win, width, height, leftPos, topPos, options)
   {
	   options += 'width=' + width + ',height=' + height + ',left=' + leftPos + ',top=' + topPos + 'status=yes';
   	return window.open(url, win, options);
   }

 function ZobrazPopUp(id, cislo)
   {
    sirka    = 100;
    vyska    = 100;
    awidth   = screen.availWidth;
    aheight  = screen.availHeight;
    obrsirka = (awidth - sirka)/2;
    obrvyska = (aheight - vyska)/2;
    url      = '?id=80&cat=' + id + '&gal=' + cislo + '&awidth=' + awidth + '&aheight=' + aheight;
    popUpWin(url, 'Nahlad', sirka, vyska, obrsirka, obrvyska, '');
   }

	function ld(theurl)
  {
	 	document.getElementById("url").href = theurl;
	 	document.getElementById("url").click();
	 }

 function text_onmouse()
  { 
   if (document.form1.search.value == 'vyhľadať')
    document.form1.search.value = "";
  }
 
 function text_onmouseout()
  { 
   if (document.form1.search.value == '')
    document.form1.search.value = "vyhľadať";
  }

 function posliznamemu ()
  {
   if (document.getElementById("posliznamemu").style.display == 'none')
    document.getElementById("posliznamemu").style.display='block';
   else
    document.getElementById("posliznamemu").style.display='none';
  }