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) {
		content_button_over = newImage("images/content_button-over.gif");
		account_button_over = newImage("images/account_button-over.gif");
		layout_button_over = newImage("images/layout_button-over.gif");
		help_button_over = newImage("images/help_button-over.gif");
		logout_button_over = newImage("images/logout_button-over.gif");
		nav_page_over = newImage("images/nav_page_over.gif");
		nav_news_over = newImage("images/nav_news_over.gif");
		nav_resources_over = newImage("images/nav_resources_over.gif");
		nav_calendar_over = newImage("images/nav_calendar_over.gif");
		nav_depts_over = newImage("images/nav_depts_over.gif");
		nav_staff_over = newImage("images/nav_staff_over.gif");
		nav_beliefs_over = newImage("images/nav_beliefs_over.gif");
		nav_media_over = newImage("images/nav_media_over.gif");
		nav_account_over = newImage("images/nav_account_over.gif");
		nav_billing_over = newImage("images/nav_billing_over.gif");
		nav_product_over = newImage("images/nav_product_over.gif");
		nav_admin_over = newImage("images/nav_admin_over.gif");
		nav_email_over = newImage("images/nav_email_over.gif");
		nav_ticket_over = newImage("images/nav_ticket_over.gif");
		nav_payment_over = newImage("images/nav_payment_over.gif");
		nav_chat_over = newImage("images/nav_chat_over.gif");
		nav_help_over = newImage("images/nav_help_over.gif");
		nav_template_over = newImage("images/nav_template_over.gif");
		preloadFlag = true;}
}