<?php 
if (!defined('IN_CB')) { die('You are not allowed to access to this page.'); } 
 
$default_value['thickness'] = 30; 
$thickness = intval(isset($_POST['thickness']) ? $_POST['thickness'] : $default_value['thickness']); 
registerImageKey('thickness', $thickness); 
?> 
                    <tr> 
                        <td><label for="thickness">Thickness</label></td> 
                        <td><?php echo getInputTextHtml('thickness', $thickness, array('type' => 'number', 'min' => 20, 'max' => 90, 'step' => 5, 'required' => 'required')); ?></td> 
                    </tr>
 
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