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) {
		aboutus = newImage("welcome_tickets_images/aboutus_over.gif");
        advertising = newImage("welcome_tickets_images/advertising_over.gif");
        publishers = newImage("welcome_tickets_images/publishers_word_over.gif");
        order_copies = newImage("welcome_tickets_images/order_copies_over.gif");
        contact_us = newImage("welcome_tickets_images/contact_us_over.gif");
        hotel_res_over = newImage("welcome_tickets_images/hotel_res_over.gif");
        attraction = newImage("welcome_tickets_images/attraction_tickets_over.gif");
        so_cal_blogs = newImage("welcome_tickets_images/so_cal_blogs_over.gif");
        calendar = newImage("welcome_tickets_images/mark_calendar_over.gif");
        article_archives = newImage("welcome_tickets_images/article_archives_over.gif");
		preloadFlag = true;
	}
}