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) {
        home_over = newImage("images/home-over.gif");
        webdesign_over = newImage("images/webdesign-over.gif");
        ecommerce_over = newImage("images/ecommerce-over.gif");
        cms_over = newImage("images/cms-over.gif");
        printing_over = newImage("images/printing-over.gif");
        portfolio_over = newImage("images/portfolio-over.gif");
        
        graphiclogo_over = newImage("images/graphic-logo-over.gif");  
        graphiccorporate_over  = newImage("images/graphic-corporate-over.gif");  
        graphiccalendar_over = newImage("images/graphic-calendar-over.gif");  
        graphicflyer_over = newImage("images/graphic-flyer-over.gif");  
        graphicposter_over  = newImage("images/graphic-poster-over.gif");  
        graphiccatalogue_over  = newImage("images/graphic-catalogue-over.gif");  
        graphiccard_over  = newImage("images/graphic-card-over.gif");  
        
        iconlogo_over  = newImage("images/iconlogo-over.gif");  
        iconid_over  = newImage("images/iconid-over.gif");  
        iconcalendar_over  = newImage("images/iconcalendar-over.gif");  
        iconflyer_over  = newImage("images/iconflyer-over.gif");  
        iconposter_over  = newImage("images/iconposter-over.gif");  
        iconcatalog_over  = newImage("images/iconcatalog-over.gif");  
        iconcard_over  = newImage("images/iconcard-over.gif");  
        
        troubleshooting_over = newImage("images/support-over.gif");
        order_over = newImage("images/printorder-over.gif");
		preloadFlag = true;
	}
}