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_00_over = newImage("images/menu_00-over.jpg");
		menu_02_over = newImage("images/menu_02-over.jpg");
		menu_03_over = newImage("images/menu_03-over.jpg");
		menu_04_over = newImage("images/menu_04-over.jpg");
                mainmenu_02_over = newImage("images/mainmenu_02-over.gif");
		mainmenu_03_over = newImage("images/mainmenu_03-over.gif");
		mainmenu_04_over = newImage("images/mainmenu_04-over.gif");
		mainmenu_06_over = newImage("images/mainmenu_06-over.gif");
		mainmenu_07_over = newImage("images/mainmenu_07-over.gif");
		mainmenu_10_over = newImage("images/mainmenu_10-over.gif");
		mainmenu_11_over = newImage("images/mainmenu_11-over.gif");
		mainmenu_14_over = newImage("images/mainmenu_14-over.gif");
		mainmenu_15_over = newImage("images/mainmenu_15-over.gif");
		mainmenu_16_over = newImage("images/mainmenu_16-over.gif");
		mainmenu_17_over = newImage("images/mainmenu_17-over.gif");
		preloadFlag = true;
	}
}