$ret[] = '<div class="buttons">';
$ret[] = '<button id="button_save" onclick="return form_save(this);">Speichern</button>';
$ret[] = '<span></span>';
$ret[] = '<div class="buttons">';
$ret[] = '<button id="button_save" onclick="return form_save(this);">Speichern</button>';
$ret[] = '<span></span>';