var popup = null;

	function open_photo(url) {
	  popup = window.open(url,'photo','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=840,height=840');
	}

	var popup = null;
	
		function open_gallery(url) {
	  popup = window.open(url,'gallery','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=840,height=640');
	}
	
	var popup = null;