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) {
		on_home = newImage("../images/nav_home_on.gif");
		on_webhosting = newImage("../images/nav_webhosting_on.gif");
		on_ecommerce = newImage("../images/nav_ecommerce_on.gif");
                on_order = newImage("../images/nav_order_on.gif");
		on_dedicatedservers = newImage("../images/nav_dedicated_servers_on.gif");							
		preloadFlag = true;
	}
}