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) {
		link_rollover_top_over = newImage("images/link_rollover_top_over.gif");
		link_rollover_video_over = newImage("images/link_rollover_video_over.gif");
		link_rollover_video_over011 = newImage("images/link_rollover_video_over-11.gif");
		link_rollover_dup_over = newImage("images/link_rollover_dup_over.gif");
		link_rollover_dup_over016 = newImage("images/link_rollover_dup_over-16.gif");
		link_rollover_dup_over017 = newImage("images/link_rollover_dup_over-17.gif");
		link_rollover_dvd_over = newImage("images/link_rollover_dvd_over.gif");
		link_rollover_dvd_over021 = newImage("images/link_rollover_dvd_over-21.gif");
		link_rollover_dvd_over022 = newImage("images/link_rollover_dvd_over-22.gif");
		link_rollover_equip_over = newImage("images/link_rollover_equip_over.gif");
		link_rollover_equip_over026 = newImage("images/link_rollover_equip_over-26.gif");
		link_rollover_equip_over027 = newImage("images/link_rollover_equip_over-27.gif");
		link_rollover_web_over = newImage("images/link_rollover_web_over.gif");
		link_rollover_web_over031 = newImage("images/link_rollover_web_over-31.gif");
		link_rollover_web_over032 = newImage("images/link_rollover_web_over-32.gif");
		link_rollover_ppt_over = newImage("images/link_rollover_ppt_over.gif");
		link_rollover_ppt_over036 = newImage("images/link_rollover_ppt_over-36.gif");
		link_rollover_bottom_over = newImage("images/link_rollover_bottom_over.gif");
		preloadFlag = true;
	}
}