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) {
		menu06_over = newImage("../images/menu06-over.gif");
		menu07_over = newImage("../images/menu07-over.gif");
		menu08_over = newImage("../images/menu08-over.gif");
		menu09_over = newImage("../images/menu09-over.gif");
		menu10_over = newImage("../images/menu10-over.gif");
		menu11_over = newImage("../images/menu11-over.gif");
		preloadFlag = true;
	}
}