var xmlHttp

function DoReset()
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
 
var username = document.getElementById("resetuser");
var email = document.getElementById("email");

if (username.value == null) {
	alert("You must enter your username");
	return false;
} else {
if (username.value && username.value.match(/[^a-zA-Z0-9]/))
              {
                alert("Your username can only contain letters and numbers");
                return false;
              }
}


if (email.value == null) {
  	alert("You must enter your registered email address");
	return false;
  } else {
  if (isValidEmail(email.value) === false)
                {
                  alert('Please enter a valid email address');
                  return false;
                } 
 }

 
var url="../ajax/reset-password.php"
url=url+"?username="+username.value
url=url+"&email="+email.value
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")
 	{
 	
 		alert(xmlHttp.responseText);
 		document.getElementById("resetuser").value = '';
		document.getElementById("email").value = '';
	
	}
  
}





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 isValidEmail(str)
{
  // trim starting / ending whitespace
  str = str.replace(/^\s*/, "");
  str = str.replace(/\s*$/, "");

  var at="@"
  var dot="."
  var lat=str.indexOf(at)
  var lstr=str.length
  var ldot=str.indexOf(dot)

  if (str.indexOf(at)==-1)
    return false

  if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
    return false

  if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
    return false

  if (str.indexOf(at,(lat+1))!=-1)
    return false

  if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
    return false

  if (str.indexOf(dot,(lat+2))==-1)
    return false

  if (str.indexOf(" ")!=-1)
    return false

  return true;
}


// helper function to check to see if a string is empty
function isEmpty(str)
{
  return ((str == null) || (str.length == 0));
}