obj._setMessage("正在逐个切换......");
}else if(readyStateTmp==4){
var statusTmp=a.status;
if(statusTmp==404){
obj._setMessage("未找到请求页面！",true);
}else if(window.location.href.indexOf("http")==-1 || statusTmp==200){
obj._setMessage("完成！");
if(this._domResult && window.XMLHttpRequest){
obj._requestResult=a.responseXml;
}else{
obj._requestResult=a.responseText;
}
if(obj._callBack){
obj.doCallBack();
}
}else{
