addEvent(window, 'load', synchronizeHeight);
function synchronizeHeight()
{
	var novaVelikost = Math.max(
		document.getElementById('layout_levysloupec').offsetHeight,
		document.getElementById('layout_pravysloupec').offsetHeight
	);

	document.getElementById('layout_levysloupec').style.height = novaVelikost + 40 + (!document.all ? 'px' : '');
	document.getElementById('layout_pravysloupec').style.height = novaVelikost + (!document.all ? 'px' : '');
}

function zobrazObrazek(id_novinka, id_priloha)
{
    if (window.open("cs_ob_novinka_obrazky.php?id_novinka="+id_novinka+"&id_priloha="+id_priloha, null, "width=870, height=730, location=no, menubar=no, toolbar=no, resizable=yes, scrollbars=yes"))
    	return false;
    else
		return true;
}

function addEvent(obj, evType, fn){ 
 if (obj.addEventListener){ 
   obj.addEventListener(evType, fn, false); 
   return true; 
 } else if (obj.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
}