var ajax=new AJAXRequest;
ajax.setcharset("GB2312");
var pagePannel="mainbody";
var xpage=new AJAXRequest;
xpage.setcharset("GB2312");
xpage.method="GET";
xpage.timeout=36000;

xpage.Loadpage=function(url,id){
  $(id).innerHTML="<img src='images/loading.gif'>载入中.....";
  xpage.ontimeout=function(e){ $(id).innerHTML="请求超时....";}
  xpage.onexception=function(e){ $(id).innerHTML="请求时出现错误："+e.status;}
  xpage.get(url,function(obj) { $(id).innerHTML=obj.responseText;});
}