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) {
		top_menu_home_over 			= newImage("/images/top_menu_home-over.gif");
		top_menu_events_over 		= newImage("/images/top_menu_events-over.gif");
		top_menu_latest_news_over 	= newImage("/images/top_menu_latest_news-over.gif");
		top_menu_biography_over 	= newImage("/images/top_menu_biography-over.gif");
		top_menu_photo_gallery_over = newImage("/images/top_menu_photo_gallery-over.gif");
		top_menu_merchandise_over 	= newImage("/images/top_menu_merchandise-over.gif");
		top_menu_partners_over 		= newImage("/images/top_menu_partners-over.gif");
		top_menu_contact_us_over 	= newImage("/images/top_menu_contact_us-over.gif");
		mso_logo_over				= newImage("/images/mso_logo_on.gif");
		preloadFlag = true;
	}
}