// JavaScript Document
var xmlHttp
var display

function ShowMajor(str)
{
display = 'm'
//if (str.length==0)
 // { 
 // document.getElementById("major").innerHTML=""
 // return
 // }
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {  
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="content.php"
url=url+"?q="+str
url=url+"&t=m"
//alert(url)
xmlHttp.onreadystatechange=stateChanged1 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function ShowGeraiesh(str)
{
display = 'g'
//alert('sdsds')
if (str.length==0)
  { 
  
  document.getElementById("major").innerHTML=""
  return
  }
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {  
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="content.php"
url=url+"?q="+str
url=url+"&t=g"
xmlHttp.onreadystatechange=stateChanged1 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function stateChanged1() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
  if (display == 'm') 
    document.getElementById("major").innerHTML=xmlHttp.responseText
  else if (display == 'g')
  {
    alert(xmlHttp.responseText)
	document.getElementById("geraiesh").innerHTML=xmlHttp.responseText
  }
 ShowResult();
 } 
}

function ShowResult()
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {  
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="result.php?"
if (document.getElementById("sgroup").value.length!=0 )
  url=url+"group="+document.getElementById("sgroup").value
if (document.getElementById("majorval").value.length!=0 )
  url=url+"&major="+document.getElementById("majorval").value
if (document.getElementById("maghta").value.length!=0 )
  url=url+"&maghta="+document.getElementById("maghta").value
//if (document.getElementById("geraieshval").value.length!=0 )
  //url=url+"&geraiesh="+document.getElementById("geraieshval").value
xmlHttp.onreadystatechange=stateChanged2
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function stateChanged2() 
{ 
var loadstatustext="<center><img src='loading.gif'/><h2>در حال دريافت اطلاعات...</h2></center>";
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("result").innerHTML=xmlHttp.responseText 
 } 
else
  document.getElementById("result").innerHTML=loadstatustext;
}


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;
}