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");
			aim_over = newImage("images/aim-over.gif");
			malawi_over = newImage("images/malawi-over.gif");
			activities_over = newImage("images/activities-over.gif");
			pricing_over = newImage("images/pricing-over.gif");
			contacts_over = newImage("images/contacts-over.gif");
			faq_over = newImage("images/faq-over.gif");
			apply_over = newImage("images/apply-over.gif");
			locations_over = newImage("images/locations-over.gif");
			gallery_over = newImage("images/gallery-over.gif");
			partners_over = newImage("images/partners-over.gif");
			preloadFlag = true;
		}
	}

	function openImage(imageSRC, imageWidth, imageHeight){
		window.open('galleryimage.php?src=' + imageSRC, 'gallery', 'width=' + imageWidth + ',height=' + imageHeight);
	}