JS添加修改URL參數

function ChangeParam(name, value) {

        var url = window.location.href;

        var newUrl = "";

        var reg = new RegExp("(^|)" + name + "=([^&]*)(|$)");

        var tmp = name + "=" + value;

        if (url.match(reg) != null) {

            newUrl = url.replace(eval(reg), tmp);

        }

        else {

            if (url.match("[\?]")) {

                newUrl = url + "&" + tmp;

            }

            else {

                newUrl = url + "?" + tmp;

            }

        }

        location.href = newUrl;

    }