js使用post方式打开新窗口

 $.ajax({  
                     type: "POST",  
                     url: '${contextPath}/analyse/detail.do',  
                     data: {carNum :carNum,ids:refIds},  
                     success: function(str_response) { var obj = window.open("about:blank");  
                        obj.document.write(str_response);  
                     }  
                 });

function post(URL, PARAMS) { var temp_form = document.createElement("form");     
            temp_form .action = URL;     
            temp_form .target = "_blank";
            temp_form .method = "post";     
            temp_form .style.display = "none"; for (var x in PARAMS) { var opt = document.createElement("textarea");     
                opt.name = x;     
                opt.value = PARAMS[x];     
                temp_form .appendChild(opt);     
            }     
            document.body.appendChild(temp);     
            temp_form .submit();    
        }