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) {
		point_n_clicker_over = newImage("/img/nav/rightbg/point-n-clicker_over.gif");
		budget_over = newImage("/img/nav/rightbg/budget_over.gif");
		traveler_over = newImage("/img/nav/rightbg/traveler_over.gif");
		business_over = newImage("/img/nav/rightbg/business_over.gif");
		experienced_over = newImage("/img/nav/rightbg/experienced_over.gif");
		kids_over = newImage("/img/nav/rightbg/kids_over.gif");
		preloadFlag = true;
	}
}