อีกตัวอย่างได้จาก http://www.free-webpage-templates.info/for-free/page2.html <html><head> <script type="text/javascript"> <!-- var preloadFlag = false; 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]; } } } function preloadImages() { if (document.images) { b11 = newImage("b11.jpg"); b10 = newImage("b10.jpg"); preloadFlag = true; } } // --> </script> </head> <body onload="preloadImages();"> <a href="/" onmouseover="window.status='about us'; changeimages('b1', 'b11.jpg'); return true;" onmouseout="window.status=''; changeimages('b1', 'b10.jpg'); return true;"> </body></html>