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 = true;
function preloadImages() {
	if (document.images) {
		feedback_01_over = newImage("images/public/feedback_01-over.gif");
		administration_01_over = newImage("../images/public/administration_01-over.gif");
		help_01_over = newImage("images/public/help_01-over.gif");
		preloadFlag = true;
	}
}