<?php
$link = mysql_connect("localhost", "alad", "tinp4db");
mysql_select_db("upp");
$mystate = $_REQUEST['mystate'];
echo "<form><b>$mystate Districts</b><input type='hidden' name='mstate' value='$mystate'>";
if (isset($mystate)){
  echo "<ul style='margin-left:10px;padding-left:8px;'>";
  $rs2 = mysql_query("select home_district as district,count(*) as dno from personal_info where home_state='$mystate' group by home_district", $link);
  while ($q = mysql_fetch_object($rs2)){
    $district = ucwords(strtolower($q->district));
    $dno = $q->dno;
    echo "<input type='radio' name='mydistrict' value='$district' onclick='show_names(this.value)'>$district ($dno)";
    //echo "<input type='radio' name='mydistrict' value='$district' onclick='show_names(form.mystate.value, this.value);alert(form.mystate.value);'>$district ($dno)";
  }
  echo "</ul>";
}
?>
<div id="names"><b>Names</b></div></form>
<script language='javascript'>
<!--
var xmlHttp
function show_names(mydistrict){
  alert ("Browser does not support HTTP Request")
  return
  xmlHttp=GetXmlHttpObject()
  if (xmlHttp==null){
    alert ("Browser does not support HTTP Request")
    return
  }
  var url = "names.php?mydistrict=" + mydistrict
  //var url = "names.php?mystate=" + state1 + "&mydistrict=" + district1
  url = url + "&sid=" + Math.random()
  xmlHttp.onreadystatechange = stateChanged
  xmlHttp.open("GET", url, true)
  xmlHttp.send(null)
}
function stateChanged(){
  if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
    document.getElementById("names").innerHTML=xmlHttp.responseText
  }
}
function GetXmlHttpObject(){
  var objXMLHttp=null
  if (window.XMLHttpRequest){
    objXMLHttp=new XMLHttpRequest()
  }else if (window.ActiveXObject){
    objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
  }
  return objXMLHttp
}
//-->
</script>