var xmlHttp;


function showCity(str)

{ 

xmlHttp=GetXmlHttpObject();

if (xmlHttp==null)

 {

 alert ("Browser does not support HTTP Request");

 return;

 }

var url="ajax.php";

url=url+"?z="+str;

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("txtHint").innerHTML=xmlHttp.responseText;

 } 

}





function showModel(str)

{ 

xmlHttp1=GetXmlHttpObject1();

if (xmlHttp1==null)

 {

 alert ("Browser does not support HTTP Request");

 return;

 }

var url="model.php";

url=url+"?z="+str;

url=url+"&sid="+Math.random();

xmlHttp1.onreadystatechange=stateChanged1;

xmlHttp1.open("GET",url,true);

xmlHttp1.send(null);

}



function stateChanged1() 

{ 

if (xmlHttp1.readyState==4 || xmlHttp1.readyState=="complete")

 { 

 document.getElementById("txtHint1").innerHTML=xmlHttp1.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;

}



function GetXmlHttpObject1()

{

var xmlHttp1=null;

try

 {

 // Firefox, Opera 8.0+, Safari

 xmlHttp1=new XMLHttpRequest();

 }

catch (e)

 {

 //Internet Explorer

 try

  {

  xmlHttp1=new ActiveXObject("Msxml2.XMLHTTP");

  }

 catch (e)

  {

  xmlHttp1=new ActiveXObject("Microsoft.XMLHTTP");

  }

 }

return xmlHttp1;

}

//----------------------------

function showCity1(str)

{ 

xmlHttp2=GetXmlHttpObject2();

if (xmlHttp2==null)

 {

 alert ("Browser does not support HTTP Request");

 return;

 }

var url="ajax1.php";

url=url+"?z="+str;

url=url+"&sid="+Math.random();

xmlHttp2.onreadystatechange=stateChanged2;

xmlHttp2.open("GET",url,true);

xmlHttp2.send(null);

}



function stateChanged2() 

{ 

if (xmlHttp2.readyState==4 || xmlHttp2.readyState=="complete")

 { 

 document.getElementById("txtHint2").innerHTML=xmlHttp2.responseText;

 } 

}



function showModel2(str)

{ 

xmlHttp3=GetXmlHttpObject3();

if (xmlHttp3==null)

 {

 alert ("Browser does not support HTTP Request");

 return;

 }

var url="model1.php";

url=url+"?z="+str;

url=url+"&sid="+Math.random();

xmlHttp3.onreadystatechange=stateChanged3;

xmlHttp3.open("GET",url,true);

xmlHttp3.send(null);

}



function stateChanged3() 

{ 

if (xmlHttp3.readyState==4 || xmlHttp3.readyState=="complete")

 { 

 document.getElementById("txtHint3").innerHTML=xmlHttp3.responseText;

 } 

}





function GetXmlHttpObject2()

{

var xmlHttp2=null;

try

 {

 // Firefox, Opera 8.0+, Safari

 xmlHttp2=new XMLHttpRequest();

 }

catch (e)

 {

 //Internet Explorer

 try

  {

  xmlHttp2=new ActiveXObject("Msxml2.XMLHTTP");

  }

 catch (e)

  {

  xmlHttp2=new ActiveXObject("Microsoft.XMLHTTP");

  }

 }

return xmlHttp2;

}



function GetXmlHttpObject3()

{

var xmlHttp3=null;

try

 {

 // Firefox, Opera 8.0+, Safari

 xmlHttp3=new XMLHttpRequest();

 }

catch (e)

 {

 //Internet Explorer

 try

  {

  xmlHttp3=new ActiveXObject("Msxml2.XMLHTTP");

  }

 catch (e)

  {

  xmlHttp3=new ActiveXObject("Microsoft.XMLHTTP");

  }

 }

return xmlHttp3;

}