var preloadFlag = false;

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];
		}
	}
}
function preloadImages() {
	if (document.images) {
		photos_over = newImage("../gifs/photosButton-over.gif");
		reviews_over = newImage("../gifs/reviewsButton-over.gif");
		calendar_over = newImage("../gifs/calButton-over.gif");
		bio_over = newImage("../gifs/bioButton-over.gif");
		rec_over = newImage("../gifs/recButton-over.gif");
		contact_over = newImage("../gifs/contactButton-over.gif");
		home_over = newImage("../gifs/homeButton-over.gif");
		
		
		preloadFlag = true;
	}
}