function newWindow(category){
	//alert(category);
			var width = 1000;
		    var height = 700;
		    var left = parseInt((screen.availWidth/2) - (width/2));
		    var top = parseInt((screen.availHeight/2) - (height/2));
		    var windowFeatures = "width=" + width + ",height=" + height + 
		        ",status=no,resizable=yes,scrollbars=yes,left=" + left + ",top=" + top + 
		        ",screenX=" + left + ",screenY=" + top;
		    var newWind = window.open("./include/print_images.php?ctg="+category, "subWindow", 
		              windowFeatures);
		}