(function(window, $){
    'use strict';

    if(!$){ return; }

    function replaceAccountPanel(url, pushHistory){
        var current = $('#rightcol .rightcol_inner').first();
        if(!current.length){ window.location.href = url; return; }

        current.addClass('modern-panel-is-loading');
        $.ajax({
            url: url,
            type: 'GET',
            cache: false,
            success: function(markup){
                var incoming = $('<div></div>').html(markup).find('#rightcol .rightcol_inner').first();
                if(!incoming.length){
                    window.location.href = url;
                    return;
                }

                current.replaceWith(incoming);
                if(pushHistory && window.history && window.history.pushState){
                    window.history.pushState({ accountPanel: true }, '', url);
                }

                var panel = $('#rightcol').first();
                if(panel.length){
                    $('html, body').animate({ scrollTop: panel.offset().top - 18 }, 180);
                }
            },
            error: function(){
                current.removeClass('modern-panel-is-loading');
            }
        });
    }

    $(document).on('click', 'body.modern-account-page #rightcol .pagination a', function(event){
        if($(this).closest('#modern-won-results').length){ return; }

        var url = $(this).attr('href');
        if(!url || url === '#'){ return; }

        event.preventDefault();
        replaceAccountPanel(url, true);
    });

    if(window.history && window.history.pushState){
        window.addEventListener('popstate', function(event){
            if(event.state && event.state.accountPanel){
                replaceAccountPanel(window.location.href, false);
            }
        });
    }
})(window, window.jQuery);