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) {
		menu_home_over = newImage("menugraphics/menu_home_over.gif");
		menu_about_over = newImage("menugraphics/menu_about_over.gif");
		menu_trainer_over = newImage("menugraphics/menu_trainer_over.gif");
		menu_ceuinfo_over = newImage("menugraphics/menu_ceuinfo_over.gif");
		menu_order_over = newImage("menugraphics/menu_order_over.gif");
		menu_video_over = newImage("menugraphics/menu_video_over.gif");
		preloadFlag = true;
	}
}