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) {
		jobs_over = newImage("/images/public/main_nav/jobs-over.gif");
		for_talent_over = newImage("/images/public/main_nav/for_talent-over.gif");
		for_clients_over = newImage("/images/public/main_nav/for_clients-over.gif");
		creative_connects_over = newImage("/images/public/main_nav/creative_connects-over.gif");
		about_us_over = newImage("/images/public/main_nav/about_us-over.gif");
		contact_us_over = newImage("/images/public/main_nav/contact_us-over.gif");
		login_over = newImage("/images/public/main_nav/login-over.gif");
		preloadFlag = true;
	}
}