function newImage(arg) {	if (document.images) {		rslt = new Image();		rslt.src = arg;		return rslt;	}}function changeImages() {	if (document.images && (preloadFlag == true)) {		for (var i=0; i<changeImages.arguments.length; i+=2) {			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];		}	}}var preloadFlag = false;function preloadImages() {	if (document.images) {		res_perf_07_over = newImage("images/res_perf_07-over.gif");		res_perf_10_over = newImage("images/res_perf_10-over.gif");		res_perf_12_over = newImage("images/res_perf_12-over.gif");		res_perf_17_over = newImage("images/res_perf_17-over.gif");		res_perf_19_over = newImage("images/res_perf_19-over.gif");		res_perf_21_over = newImage("images/res_perf_21-over.gif");		res_perf_23_over = newImage("images/res_perf_23-over.gif");		res_perf_25_over = newImage("images/res_perf_25-over.gif");		res_perf_27_over = newImage("images/res_perf_27-over.gif");		res_perf_29_over = newImage("images/res_perf_29-over.gif");		one_over = newImage("images/image_1.gif");		two_over = newImage("images/image_2.gif");		three_over = newImage("images/image_3.gif");		four_over = newImage("images/image_4.gif");		five_over = newImage("images/image_5.gif");		preloadFlag = true;	}}