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) {
		home_over = newImage("images/home_over.gif");
		reviews_over = newImage("images/reviews_over.gif");
		bio_over = newImage("images/bio_over.gif");
		interviews_over = newImage("images/interviews_over.gif");
		upcoming_screenings_over = newImage("images/upcoming_screenings_over.gif");
		buy_over = newImage("images/buy_over.gif");
		past_screenings_over = newImage("images/past_screenings_over.gif");
		synopsis_over = newImage("images/synopsis_over.gif");
		preloadFlag = true;
	}
}