//SessionsController@store  -  Login form POSTs to this.


public function store()
{
    //take the email and password supplied by the user
    $input = Input::only('head_email', 'password');

    // dd($input);   //for testing, gives correct result

    //attempt to authenticate
    if( Auth::attempt($input) )
    {
        //if Authenticated, redirect to here
	return redirect('delegates.pay');	
    }
    
    // No authentication - ie, redirect back with an error message
    return Redirect::back()->withInput()->withFlashMessage('Invalid Login Details');
}


// MORE STUFF
// dd( Auth::attempt($input) )  returns false.
// On redirect back, no flash message is passed back.