Ext3.X 同步请求
许多需要返回结果的函数，使用ajax异步请求将得不到值，这时需要使用同步请求，代码如下Synchronize = function(url) {function createXhrObject() {var http;var activeX = ["MSXML2XMLHttp.5.0","MSXML2XMLHttp.4.0","MSXML2.XMLHttp.3.0", "MSXML2.XMLHttp","Microsoft.XMLHttp"];try {http = new XMLHttpRequest();} catch (e) {for (var i = 0; i < activeX.length; ++i) {try {http = new ActiveXObject(activeX);break;} catch (e) {UICtrl.WriteToPhoneMessageBox('生成'+activeX+'失败！');}}} finally {return http;}};var conn = createXhrObject();if (conn){conn.open("POST", url, false);conn.send(null);if (conn.responseText != '') {return Ext.decode(conn.responseText);} else {UICtrl.WriteToPhoneMessageBox('服务器出现错误请稍后再试！');}}else{UICtrl.WriteToPhoneMessageBox('创建HTTP请求失败！');}};
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