ref = null;
function clickRef(nome,w,h) {
        

if((ref==null)||(ref.closed))			
ref=window.open(nome,'ref','width='+ w + ',height=' + h+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes');
		else
			ref.close();
			ref=window.open(nome,'ref','width='+ w + ',height=' + h+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes');  

}

function winClose() {
        
if((ref!=null))		
ref.close();
			

}