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) {
        frame_about_us_over = newImage("/images/frame-about_us_over.gif");
        frame_events_over = newImage("/images/frame-events_over.gif");
        frame_on_our_shelves_over = newImage("/images/frame-on_our_shelves_over.gif");
        frame_subscribe_over = newImage("/images/frame-subscribe_over.gif");
        frame_university_clothing_about_us_over = newImage("/images/frame-university_clothing_o.gif");
        frame_navigation_sub_about_us_over = newImage("/images/frame-navigation_sub_about.gif");
        frame_navigation_sub_events_over = newImage("/images/frame-navigation_sub_events.gif");
        frame_navigation_sub_on_our_shelves_over = newImage("/images/frame-navigation_sub_on_our.gif");
        frame_navigation_sub_subscribe_over = newImage("/images/frame-navigation_sub_subscr.gif");
        frame_navigation_sub_university_clothing_over = newImage("/images/frame-navigation_sub_univer.gif");
        frame_shopping_cart_over = newImage("/images/frame-shopping_cart_over.gif");
        preloadFlag = true;
    }
}
function clearImageMap (element) {
	mapObj = document.getElementById(element);
	while (mapObj.childNodes.length)   {
		mapObj.removeChild(mapObj.firstChild);
	}
}
function resetImages(section) {
	switch(section) {
		case "about":
		changeImages('frame_on_our_shelves', '/images/frame-on_our_shelves.gif', 'frame_events', '/images/frame-events.gif', 'frame_subscribe', '/images/frame-subscribe.gif', 'frame_university_clothing', '/images/frame-university_clothing.gif');
		break;
		case "events":
		changeImages('frame_about_us', '/images/frame-about_us.gif', 'frame_on_our_shelves', '/images/frame-on_our_shelves.gif', 'frame_subscribe', '/images/frame-subscribe.gif', 'frame_university_clothing', '/images/frame-university_clothing.gif');
		break;
		case "onourshelves":
		changeImages('frame_about_us', '/images/frame-about_us.gif', 'frame_events', '/images/frame-events.gif', 'frame_subscribe', '/images/frame-subscribe.gif', 'frame_university_clothing', '/images/frame-university_clothing.gif');
		break;
		case "subscribe":
		changeImages('frame_about_us', '/images/frame-about_us.gif', 'frame_on_our_shelves', '/images/frame-on_our_shelves.gif', 'frame_events', '/images/frame-events.gif', 'frame_university_clothing', '/images/frame-university_clothing.gif');
		break;
		case "store":
		changeImages('frame_about_us', '/images/frame-about_us.gif', 'frame_on_our_shelves', '/images/frame-on_our_shelves.gif', 'frame_events', '/images/frame-events.gif', 'frame_subscribe', '/images/frame-subscribe.gif');
		break;
	}

	
}
function zoom(style) {
	var url = "/store/zoom.php?style=" + style;
	var zoom = window.open(url,"zoom","scrollbars=yes,resizable=yes,status=no,menubar=yes,directories=no,location=no,toolbar=no,width=650,height=500");
	if (zoom.opener == null) zoom.opener = self;
}