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) {
		logo_contactus_over = newImage("images/logo-contactus_over.gif");
		home_gallery_over = newImage("images/home-gallery_over.gif");
		home_over = newImage("images/home-over.gif");
		gallery_over = newImage("images/gallery-over.gif");
		gallery_home_over = newImage("images/gallery-home_over.gif");
		location_facilities_over = newImage("images/location-facilities_over.gif");
		location_over = newImage("images/location-over.gif");
		location_gallery_over = newImage("images/location-gallery_over.gif");
		facilities_over = newImage("images/facilities-over.gif");
		facilities_location_over = newImage("images/facilities-location_over.gif");
		contactus_facilities_over = newImage("images/contactus-facilities_over.gif");
		contactus_over = newImage("images/contactus-over.gif");
		button_bg_contactus_over = newImage("images/button_bg-contactus_over.gif");
		preloadFlag = true;
	}
}

function newViewerImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeViewerImages() {
	if (document.images && (preloadViewerFlag == true)) {
		for (var i=0; i<changeViewerImages.arguments.length; i+=2) {
			document[changeViewerImages.arguments[i]].src = changeViewerImages.arguments[i+1];
		}
	}
}

var preloadViewerFlag = false;
function preloadViewerImages() {
	if (document.images) {
		photoviewer_btn_prev_over = newImage("images/photoviewer_btn_prev-over.gif");
		photoviewer_btn_stopstart_over = newImage("images/photoviewer_btn_stopstart-o.gif");
		photoviewer_btn_next_over = newImage("images/photoviewer_btn_next-over.gif");
		photoviewer_footer_photoviewer_btn_next_over = newImage("images/photoviewer_footer-photovie.gif");
		photoviewer_footer_photoviewer_btn_prev_over = newImage("images/photoviewer_footer-photo-19.gif");
		preloadViewerFlag = true;
	}
}