if ($_POST['systemCall'] == "checkLogin") {
	$username = mysql_real_escape_string(stripslashes($_POST['username']));
	$password = md5($_POST['password']);
	$date = date('Y')."-".date('j')."-".date('d')."T".date('H').":".date('i').":".date('s').".".date('u');
	$query = mysql_query("SELECT * FROM es_users WHERE username='$username' AND password='$password' LIMIT 1");
	$user_count = mysql_num_rows($query);
	$user = mysql_fetch_assoc($query);
	if ($user_count > 0) {
		if($user['activated'] == 1){
			mysql_query("UPDATE es_users SET lastlogin='$date' WHERE username='$username' AND password='$password'") or die(mysql_error());
			print "systemResult=User login Successful.";
		} else {
			print "systemResult=User is not Activated.";
		}
	} else if($user_count == 0) {
		print "systemResult=User does not Exist.";
	}
}