$(function(){
    $(window).scroll(function() {
        $('#shopping_cart').stop().animate({
            'top':$(window).scrollTop()
            }, 500);
    });
    $('.select_currency a').click(function() {
        $('#currency_overlay').show();
        $('body').click(function() {
            $('#currency_overlay').hide();
        });
        return false;
    });

    $('a.overlay').fancybox({
        titlePosition:'inside',
        overlayColor: '#000'
    });

    $('a.continue-shopping').click(function() {
        $.fancybox.close();
    });

    $('a#show_cart_overlay').fancybox({
        titlePosition:'inside',
        overlayColor: '#000'
    });
        
    $('a#show_cart_overlay').click();

    // Check that products have quantity and a size before adding to cart.
    $('.product-cart-form, .full-cart-form').submit(function() {
        var size = $(this).find("select[name='size_id']").val();
        var qty = $(this).find("select[name='unitSelect']").val();
        if(!size && !qty) {
            alert("You must selet a quantity and size.");
            return false;
        }
        return true;
    });
});