// JavaScript Document
// ============================================================================================
//		File 	: username.js
//		Purpose : To Check Availability of User Id
//		Coder   : kuldeep shah
//		Date 	: 07 Nov, 2007.		
// ===========================================================================================


var url = "username.php?param="; // The server-side script 

function updateName() 
{ 
  // display a quick message while the script is being processed 
  document.getElementById('un').innerHTML = "...checking database..."; 
  //var name = document.getElementById("username").value; 
  var name = document.forms['frmRegister'].username.value; 
  //name = "aaa";
  ///alert(name);  
  http.open("GET", "username.php?param=" + escape(name), true); 
  http.onreadystatechange = handleHttpResponse; 
  http.send(null); 
} 

function handleHttpResponse() 
{ 
  if (http.readyState == 4) { 
    results = http.responseText; 
	//alert(results);
    // var name = document.getElementById("username").value; 
    var name = document.forms['frmRegister'].username.value; 
	if(results == "") 
		results = "<font color='green'>* Username <b>"+name+"</b> Is Available...</font>"; 
    
	// the div in which the message appears 
    document.getElementById('un').innerHTML = results; 
  } 
} 

function getHTTPObject() { 
  var xmlhttp; 
	if (!xmlhttp && typeof XMLHttpRequest != 'undefined') { 
    try { 
      xmlhttp = new XMLHttpRequest(); 
    } catch (e) { 
      xmlhttp = false; 
    } 
  } 
  return xmlhttp; 
} 
var http = getHTTPObject(); // We create the HTTP Object