function ShowImg(url)
 {
	document.getElementById('fotka').innerHTML='<table><tr><td><img title="Kliknutím zavřete." src="'+url+'" /></td></tr></table>';	 
	document.getElementById('fotkabg').style.display="block";
	document.getElementById('fotka').style.display="block";	
 }
 function HideImg()
 {
	document.getElementById('fotka').innerHTML='';	 
	document.getElementById('fotka').style.display="none";	
	document.getElementById('fotkabg').style.display="none";	 
 }