asp.net中js和jquery调用ashx的不同方法分享

=============js================

var xhr = new xmlhttprequest();
            xhr.open("get", 'controls/gengcart.ashx?cartid=' + input + '&count=' + inp, true);
            xhr.setrequestheader("if-modified-since", "0");
            xhr.onreadystatechange = function () {
                if (xhr.readystate == 4 && xhr.status == 200) {
                    var result = xhr.responsetext;
                    var json = eval("(" + result + ")");
                    alert(js.name);
                }
            };
            xhr.send(null);

============jquery=====================

  $.post('controls/cart.ashx', { "productid":<%= getid %>,"count":"1","userid":'<%= uid %>' }, function (data,statu) {
                if (statu == 'success') {
                   if(data=="false"){
                      alert("请登录后再进行此操作");
                   }
                   else{
                      window.location="gwc.aspx?uid="+'<%= uid%>';
                   }
                }
            })