Table of Contents Web Part - Hide Libraries, List, Discussions from showing (For SharePoint Online)

Hi,

Hoping someone can help me with this one!

I'm after some JavaScript code that will filter my table of contents so that only sites and sub-sites are visible. I have 3 levels visible via the web part from I need and the table of contents is also showing all the other stuff from the quick launch which I di not want people to see.

The code I have at the moment which is not working is attached.

<script language="JavaScript" type="text/javascript">

 // This script removes lists, libraries and discussions from Table of Contents 
 

var links = document.body.getElementsByTagName("a"); 
for(ii=0; ii<links.length; ii++) 
{

 if(links[ii].outerHTML.indexOf("BaseType") != -1 &&  
 links[ii].parentNode.parentNode.parentNode.parentNode.className == "level-section")

 { 
  links[ii].parentNode.parentNode.parentNode.parentNode.style.display = "none"; 
 }

}
 </script>

Thanks!

Clare