function checkLogin()
{
	
	var frm = document.forms['login'];
	uid = frm.username.value;
	upassword = frm.password.value;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
 	{
	  alert ("Your browser does not support AJAX!");
	  return false;
 	} 
	var url="index.php?id=65";
	url=url+"&username="+uid;
	url=url+"&password="+upassword;
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("POST",url,true);
	xmlHttp.send(null);
	
	return false;
} 
		
	
function stateChanged() 
{
	var frm = document.forms['login'];
	if (xmlHttp.readyState==4)
	{
		
		if(xmlHttp.responseText == '<p>nok</p>')
		{			
			document.getElementById("responsetext").innerHTML='<span class="ajaxresponseerror">Gebruikersnaam/Wachtwoord komen niet overeen.</span>';
		}
		else
		{
			
			document.location.href="/home";

		}
	}
}

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;
}