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) {
		menuHome_over = newImage("./images/menu/menuHome-over.gif");
		menuOurServices_over = newImage("./images/menu/menuOurServices-over.gif");
		menuJustOne_over = newImage("./images/menu/menuJustOne-over.gif");
		menuContacts_over = newImage("./images/menu/menuContacts-over.gif");
		menuNetworks_over = newImage("./images/menu/menuNetworks-over.gif");
		menuEmployment_over = newImage("./images/menu/menuEmployment-over.gif");
		menuLogin_over = newImage("./images/menu/menuLogin-over.gif");
		preloadFlag = true;
	}
}