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) {
		menu1_01_menu1_08_over = newImage("/img/menu1_01-menu1_08_over.gif");
		menu1_03_menu1_09_over = newImage("/img/menu1_03-menu1_09_over.gif");
		menu1_05_menu1_10_over = newImage("/img/menu1_05-menu1_10_over.gif");
		menu1_07_menu1_11_over = newImage("/img/menu1_07-menu1_11_over.gif");
		preloadFlag = true;
	}
}