jQuery.fn.loadCart  = function () {
    var $this = $(this);
    $.ajaxSetup({cache: false}); // need this for damned ies
    $this.load(CART_LOAD_URL, function () {
        $('#pr_amount', this).tooltip({
            bodyHandler: function () {
                return $('#cart_items', $this).html();
            },
            showURL: false
        });
    });
};//eof loadCart

$(document).ready(function () {
    $('#shoppingcart').loadCart();
});