(function($){

$.jd = {

    'get': function(url, data, successFn, dataType)
    {
        return $.get(url, data, successFn, dataType);
    },
    'post': function(url, data, successFn, dataType)
    {
        return $.post(url, data, successFn, dataType);
    },
    'getJSON': function(url, data, successFn)
    {
        return $.getJSON(url, data, successFn)
    },
    'postJSON': function(url, data, successFn)
    {
        return $.post(url, data, successFn, 'json');
    }
};

})(jQuery);