function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images) {
		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) {
		hex1 = newImage("/graphics/menu_home_on.gif");
		hex2 = newImage("/graphics/menu_about_on.gif");
		hex3 = newImage("/graphics/menu_services_on.gif");
		hex4 = newImage("/graphics/menu_employers_on.gif");
		hex5 = newImage("/graphics/menu_candidates_on.gif");
		hex6 = newImage("/graphics/menu_partners_on.gif");
		hex7 = newImage("/graphics/menu_library_on.gif");
		hex8 = newImage("/graphics/menu_news_on.gif");
		hex9 = newImage("/graphics/menu_contact_on.gif");
				
		preloadFlag = true;
	}
}