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_01_over = newImage("/images/Menu/Menu_01-over.gif");
			Menu_01_Menu_02_over = newImage("/images/Menu/Menu_01-Menu_02_over.gif");
			Menu_02_over = newImage("/images/Menu/Menu_02-over.gif");
			Menu_03_over = newImage("/images/Menu/Menu_03-over.gif");
			Menu_04_over = newImage("/images/Menu/Menu_04-over.gif");
			Menu_04_Menu_05_over = newImage("/images/Menu/Menu_04-Menu_05_over.gif");
			Menu_05_over = newImage("/images/Menu/Menu_05-over.gif");
			Menu_05_Menu_06_over = newImage("/images/Menu/Menu_05-Menu_06_over.gif");
			Menu_06_over = newImage("/images/Menu/Menu_06-over.gif");
			Menu_07_over = newImage("/images/Menu/Menu_07-over.gif");
			Menu_08_over = newImage("/images/Menu/Menu_08-over.gif");
			Menu_09_over = newImage("/images/Menu/Menu_09-over.gif");
			preloadFlag = true;
		}
	}