my $header = ${$ele->child()}{0};
# erzeuge headerzeile
foreach my $ele2 (@documentlist){
     if($header eq ${$ele->name()}){
                   
     my %hash = %{$ele2->spalteninfo()};
     my @sorted = sort keys %hash;
     $string .= '<tr>';
     for my $key(@sorted){
          $string .= '<th>'.$key.'</th>';
     }
     $string .= '</tr>'; 
     #PROBLEM
     break; 
     }
}