var xmlHttp;

function showStu(stuName)
{ 
	//alert("Name: "+stuName);
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request");
 return
 }
var url="getResult.php";
url=url+"?stuName="+stuName;
//alert(url);
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged ;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}


function stateChanged() 
{ 
	 if(xmlHttp.readyState == 0) { document.getElementById('ResultSet').innerHTML = "<center><img src='images/mozilla_blu.gif'/></center>"; }   
     if(xmlHttp.readyState == 1) { document.getElementById('ResultSet').innerHTML = "<center><img src='images/mozilla_blu.gif'/></center>"; }   
     if(xmlHttp.readyState == 2) { document.getElementById('ResultSet').innerHTML = "<center><img src='images/mozilla_blu.gif'/></center>"; }   
     if(xmlHttp.readyState == 3) { document.getElementById('ResultSet').innerHTML = "<center><img src='images/mozilla_blu.gif'/></center>"; }   
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
	//alert("responseText: "+xmlHttp.responseText);
 document.getElementById("ResultSet").innerHTML=xmlHttp.responseText;

 } 
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}