function pop(url)
		{
		iwin=window.open(url,"uno","status=no,location=no,menu=no,width=520,height=640,scrollbars=yes");
		return false;
		}
		
	function popimg(url)
		{
		iwin=window.open(url,"due","status=no,location=no,menu=no,width=800,height=600");
		return false;
		}

	function des()
		{
		window.close();
		return false;
		}

	function back()
		{
		history.back();
		return false;
		}