function najezd(element)
	{
	div=document.getElementById(element);
	if(element.substring(element.length-1)!="2")div.id=element+"2";
	}
	
function vyjezd(element)
	{
	div=document.getElementById(element+"2");
	if(element.substring(element.length-2,element.length-1)!="2")div.id=element;	
	}
	
function klik(element)
	{
	div=document.getElementById(element);
	div.style.zIndex="1";
	}