/*function loadImages()
{
	preload_image_object = new Image();
	var pageImages = new Array();
	var imageList = new Array("bt_1.jpg" , "bt_1_sel.jpg", "bt_2_.jpg", "bt_2_sel.jpg", "bt_3.jpg", "bt_3_sel.jpg", "bt_4.jpg", 
		"bt_4_sel.jpg" , "bt_5.jpg" , "bt_5_sel.jpg" , "bt_6.jpg" , "bt_6_sel.jpg" , "bt_7.jpg" , "bt_7_sel.jpg")
	var noOfImages = imageList.length;
	alert("number of images are " + noOfImages);
	for (x=0; x<noOfImages; x++)	
	{
		preload_image_object.src = "images/" + imageList[x];
		alert("image is " + preload_image_object.src);
	}
}*/

 <script type="text/javascript">
<!--
var myimages = new Array();
function preloading(){
for (x=0; x<preloading.arguments.length; x++){
myimages[x] = new Image();
myimages[x].src = preloading.arguments[x];
}
}
preloading("large_front1.jpg","large_front2.jpg","large_front3.jpg","large_front4.jpg","large_front5.jpg","large_front6.jpg");
// -->
</script>