'conv_units' => 'convertible_not_smaller',
'max_places' => 2);
$content .= qq| <input type="button" onclick="open_stock_in_out_window('${in_out}', $i);" value="?">|;
'conv_units' => 'convertible_not_smaller',
'max_places' => 2);
$content .= qq| <input type="button" onclick="open_stock_in_out_window('${in_out}', $i);" value="?">|;