<div class="helpdiv" id="chapters_validatedata">"Hide invalid chapters" defines the parameter <br/> <i><strong>ValidateData</strong></i> for the <em>Chapters</em> Plugin/Add-on.<br/><br/><strong>Parameter description:</strong><br/>By default the plug-in does not display items that refer to page numbers higher than the last page or lower than first page. Set this parameter to display all index items, even if refer to non-existing pages.<br/><br/><strong>Default Value:</strong> true</div>