function getQueryObject(url) {     url = url == null ? window.location.href : url;     var search = url.substring(url.lastIndexOf("?") + 1);     var obj = {};     var reg = /([^?&=]+)=([^?&=]*)/g;     search.replace(reg, function (rs, key, value) {         var name = decodeURIComponent(key);         var val = decodeURIComponent(value);                        val = String(val);         obj[name] = val;         return rs;     });     return obj; }