function initializeShoppingCart() {

    if ($('shoppingInfo') != null) {
        setupHelpLinks();
    }

    if ($('returningUserSubmitLink') != null) {
        $('returningUserSubmitLink').observe('click', function(event) { showLoginOverlay(event); });
    }

    if ($('guestUserSubmitLink') != null) {
        $('guestUserSubmitLink').observe('click', function(event) { showLoginOverlay(event); });
    }
}

function showVideoPlayerOverlay(videoUrl) {
    new Popup('videoPlayer', null, { modal: true }, { position: 'center' });
    $('videoPlayer').popup.show();
    $('popup_overlay').onclick = function() {
        $('videoPlayer').popup.hide();
    };
    wimpyConfigs.playlist = videoUrl;
    makeWimpyPlayer(wimpyConfigs);
}

function showHiresImage(event) {
	new Popup('highResImageOverlay', null, { modal: true }, { position: 'center' });
	$('highResImageOverlay').popup.show();
}