 el = document.getElementById(id);
            if (!el) {
                el = document.createElement("span");
            }
            return el;
        }

        (function (w) {
            w.URLSearchParams = w.URLSearchParams || function (searchString) {
                var self = this;
                self.searchString = searchString;
                self.get = function (name) {
                    var results = new RegExp('[\\?&]' + name + '=([^&#]*)').exec(self.searchString);
        