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) {
		SLB_top_home_over = newImage("images/SLB_top_home-over.gif");
		SLB_top_askmike_over = newImage("images/SLB_top_askmike-over.gif");
		SLB_top_register_over = newImage("images/SLB_top_register-over.gif");
		SLB_top_shoponline_over = newImage("images/SLB_top_shoponline-over.gif");
		SLB_top_forum_over = newImage("images/SLB_top_forum-over.gif");
		SLB_top_chatroom_over = newImage("images/SLB_top_chatroom-over.gif");
		SLB_top_contactus_over = newImage("images/SLB_top_contactus-over.gif");
		SLB_top_terms_over = newImage("images/SLB_top_terms-over.gif");
		preloadFlag = true;
	}
}