function check_readonly ( name )
    {
        if ( $('form#' + name + ' input.poll_submit').attr("readonly") == true ) 
        {                    
            alert ('{ALREADY_VOTED}');
            return 'false';
        }
        else
        {
            return true;
        }
    }

    $(document).ready ( function () 
        {
        
            $('form.poll').bind ( 'submit' ,function () 
                {
                    var name = $(this).attr ('id');
                    var id = $('form#' + name + ' input[@name=poll_id]' ).val();
                    var post = false;

                    if ( check_readonly ( name ) == 'false' )
                    {
                        return false;
                    }
                    else
                    {
                        $('form#' + name + ' input[@name=question_'+ id +']' ).each( function () 
                            {
                                if ( $(this).attr ( 'checked') == true )
                                {
                                    post = true;
                                }
                            });
                        
                        
                        if ( post == false )
                        {                    
                            alert ("Kies asseblief \'n antwoord om voort te gaan");
                            return false;
                        }
                    }
                });
        });