gistfile1.txt

class MainApplicationFormStep1 extends MultiFormStep 
{

    public static $next_steps = 'MainApplicationFormStep2';

    public function getFields() {
        return FieldList::create(
            $name = TextField::create('FirstName', 'First name', 'spazz', '180'),
            $surname = TextField::create('Surname', 'Surname')
        );
        $name->setAttribute('ID', 'MyID');
        $surname->setAttribute('ID', 'MyID');
    }
}