var xmlHttp



function Username(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url="check.php"        
url=url+"?q="+str
url=url+"&String=Username"
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged1 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

function stateChanged1() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
   {   
document.getElementById("txtHint1").innerHTML=xmlHttp.responseText 
   } 
} 




function Email(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url="check.php"        
url=url+"?q="+str
url=url+"&String=Email"
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged2 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

function stateChanged2() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
   {   
document.getElementById("txtHint2").innerHTML=xmlHttp.responseText 
   } 
} 



function Domain(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}        
var url="check.php"
url=url+"?q="+str
url=url+"&String=Domain"
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged3 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

function stateChanged3() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
   {   
document.getElementById("txtHint3").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;
}