By bow, try to add the pagebreak code.
//$sform->addElement( new XoopsFormDhtmlTextArea( _MD_DESCRIPTION, 'message', '', 15, 60 ), true );
$sform->addElement(new XoopsFormWysiwygTextArea( _MD_DESCRIPTION, 'message',' ', '100%', '400px',''), true);
//xoopsCodeTarea("contents_contents", 60, 20);
//xoopsSmilies("contents_contents");
include_once XOOPS_ROOT_PATH."/include/xoopscodes.php";
include XOOPS_ROOT_PATH . "/class/xoopsformloader.php";
include XOOPS_ROOT_PATH . "/class/wysiwyg/formwysiwygtextarea.php";
$wysiwyg_text_area= new XoopsFormWysiwygTextArea( '', 'contents_contents', $contents_contents, '100%', '400px','');
echo $wysiwyg_text_area->render();
$html_checkbox = new XoopsFormCheckBox('', 'dohtml', $dohtml);
$html_checkbox->addOption(1, _CM_DOHTML);
$option_tray->addElement($html_checkbox);
$smiley_checkbox = new XoopsFormCheckBox('', 'dosmiley', $dosmiley);
}
}
$html_checkbox = new XoopsFormCheckBox('', 'dohtml', $dohtml);
$html_checkbox->addOption(1, _CM_DOHTML);
$option_tray->addElement($html_checkbox);
$smiley_checkbox = new XoopsFormCheckBox('', 'dosmiley', $dosmiley);
$smiley_checkbox->addOption(1, _CM_DOSMILEY);
...
$wysiwyg_text_area= new XoopsFormWysiwygTextArea( _MD_CONTENTC, 'content', $value, '100%', '400px','small');