var fName = null;
function loginStateChanged() 
{ 
   if (xmlHttp.readyState==4)
   { 	
	  if(xmlHttp.responseText.match("SUCCESS"))
	  {
 		 document.loginForm1.submit();
		return true;
	  }
	  else
	  {
		  var formNumber = "errorField"+fName.substr(fName.length-1,fName.length);
  		document.getElementById(formNumber).innerHTML = "<div style='margin-top:5px;'>Incorrect user account. Please try again or contact opal for assistance.</div>";
		return false;
	  }
  }
  return false;
}
function loginCheck(formName)
{
	
     xmlHttp=getXmlHttpObject(); 
	 fName = formName;
   if (xmlHttp==null)
   {
      alert ("Your browser does not support AJAX!");
      return;
   }
 
	   var getAddress =   window.location.href.substr(7);
	   var addresses = getAddress.split("/");
	   var mainPage = addresses[1].split("?");
   var url="interface/loginCheck.php"; 
      url=url+"?username="+document.forms[formName].username.value+"&password="+document.forms[formName].password.value;
      xmlHttp.onreadystatechange=loginStateChanged;
      xmlHttp.open("GET",url,true);
      xmlHttp.send(null);
      return false;
 
}