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) {
		about_over = newImage(MEDIA_URL + "img/menu/" + LANG + "/01-about-h.gif");
		objects_over = newImage(MEDIA_URL + "img/menu/" + LANG + "/02-objects-h.gif");
		services_over = newImage(MEDIA_URL + "img/menu/" + LANG + "/03-services-h.gif");
		contacts_over = newImage(MEDIA_URL + "img/menu/" + LANG + "/04-contacts-h.gif");
		press_over = newImage(MEDIA_URL + "img/menu/" + LANG + "/05-press-h.gif");
		rus_over = newImage(MEDIA_URL + "img/menu/01-rus-h.gif");
		eng_over = newImage(MEDIA_URL + "img/menu/02-eng-h.gif");
		fra_over = newImage(MEDIA_URL + "img/menu/03-fra-h.gif");
	    preloadFlag = true;
	}
}