去掉url中的某个参数(正则)

 var s1 = s.replace(/[\?&]+"替换的参数名"+=[^&]*&?$/g, "");

            var url = window.location.href;
            var new_url = "";
            var par = "";
            if (url.split("request_locale").length > 1) {
                var temp = url.split("request_locale");
                par = temp[1];
                if (par.split("&").length > 1) {
                    var par2 = par.split("&")[0]+"&";
                    par = par.replace(par2, "");
                }else{
                    par = "";
                }
                new_url = temp[0] + par;
            }else{
                new_url = url;
            }
            if (new_url.split("?").length > 1) {
                if (new_url.charAt(new_url.length - 1)=="&" || new_url.charAt(new_url.length - 1)=="?") {
                    new_url += "request_locale=" + $("#queryVehicleType").val();
                }
            }
            else {
                new_url += "?request_locale=" + $("#queryVehicleType").val();
            }
            window.location.href = new_url;