Adding Text to the Copy Event not working in IE

Hi,

I added an addTextToCopy() function to my topics in RoboHelp 2015 and the FlashHelp output works in every browser except for Internet Explorer. I tested the function on a test site and it works fine ... it is only in the FlashHelp output that the function does not work in IE. Would appreciate any ideas!

Thanks,

AV

PS : Just in case, this is the script :

<script language="javascript">

function addTextToCopy() {

         var selection = window.getSelection(),

            pagelink = '<br><br> My copyright text',

             copytext = selection + pagelink,

             newdiv = document.createElement('div');

         newdiv.style.position = 'absolute';

         newdiv.style.left = '-99999px';

         document.body.appendChild(newdiv);

         newdiv.innerHTML = copytext;

         selection.selectAllChildren(newdiv);

         window.setTimeout(function () {

             document.body.removeChild(newdiv);

         }, 100);

     }

     document.addEventListener('copy', addTextToCopy);

< /script>