function createAjaxObj(a,b,c){
 var hReq=false;
 if(window.XMLHttpRequest){
  hReq=new XMLHttpRequest();
  if(hReq.overrideMimeType)
   hReq.overrideMimeType('text/htm')
 }else if(window.ActiveXObject){
  try{
   hReq=new ActiveXOjbect("Msxml2.XMLHTTP");
  }catch (e){
   try{
    hReq=new ActiveXObject("Microsoft.XMLHTTP");
   }
   catch (e){}
  }
 }
 hReq.open(a,b,c);
 return hReq;
}

function getStateData(){
 var url = "getStateData.asp?"+Date();
 var r = new createAjaxObj("get",url,true);
 r.onreadystatechange = function(){if(r.readyState==4){setStateData(r.responseText);}};
 r.send(null);
 return
}

function setStateData(t){
 if(t==""){
  document.getElementById('sd1').innerHTML = '<font color=red>数据提取失败！</font>';
  document.getElementById('sd2').innerHTML = '<font color=red>数据提取失败！</font>';
  document.getElementById('sd3').innerHTML = '<font color=red>数据提取失败！</font>';
 }else{
  var str = t.split("|");
  document.getElementById('sd1').innerHTML = str[0];
  document.getElementById('sd2').innerHTML = str[1];
  document.getElementById('sd3').innerHTML = str[2];
 }
 setTimeout("getStateData();",60000);
}

setTimeout("getStateData();",500);