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) {
		hd1_home_over = newImage("images/menu/hd1_home-over.gif");
		hdr1_contact_over = newImage("images/menu/hdr1_contact-over.gif");
		hdr1_tandc_over = newImage("images/menu/hdr1_tandc-over.gif");
		hdr1_privacy_over = newImage("images/menu/hdr1_privacy-over.gif");
		hdr1_site_over = newImage("images/menu/hdr1_site-over.gif");
		hdr1_gap_hdr1_about_over = newImage("images/menu/hdr1_gap-hdr1_about_over.gif");
		hdr1_about_over = newImage("images/menu/hdr1_about-over.gif");
		hdr1_solutions_over = newImage("images/menu/hdr1_solutions-over.gif");
		hdr1_services_over = newImage("images/menu/hdr1_services-over.gif");
		hdr1_training_over = newImage("images/menu/hdr1_training-over.gif");
		hdr1_testimonials_over = newImage("images/menu/hdr1_testimonials-over.gif");
		hdr1_news_over = newImage("images/menu/hdr1_news-over.gif");
		footer_about_over = newImage("images/menu/footer_about-over.gif");
		footer_solutions_over = newImage("images/menu/footer_solutions-over.gif");
		footer_services_over = newImage("images/menu/footer_services-over.gif");
		footer_training_over = newImage("images/menu/footer_training-over.gif");
		footer_testimonial_over = newImage("images/menu/footer_testimonial-over.gif");
		footer_news_over = newImage("images/menu/footer_news-over.gif");
		footer_contact_over = newImage("images/menu/footer_contact-over.gif");
		footer_site_over = newImage("images/menu/footer_site-over.gif");
		preloadFlag = true;
	}
}