Checkbox Array Result in Email Template (solved)

I have made a Form and when i send it to an Email then die Array result are

Template result
Führerscheinklasse array ( 0 => 'Kurs A', )

Template entry
<td><strong>Führerscheinklasse</strong></td>
<td>{kurs}</td> / what must i type {kurs_name} ?


I want to display only the array input 'Kurs A'

i know its not hard then i made it yesterday but then *grml* :'( i delete it unwittingly


AHHH OK =) i made it i forgott the array handler on the submit button😉.