I am trying to create a cross browser JS function to get selected text ... does anybody have anything better than what I am using?

function GetSelectedText()

   {

   var retval='';

 

   <%If mozilla Then%>

         sel=ce.GetSelection();
         retval=sel.focusNode.textContent.substr(sel.anchorOffset,sel.focusOffset-sel.anchorOffset);
   <%ElseIf IE Then%>

         sel=ce.GetSelection().createRange();
         retval=sel.htmlText;
   <%End If%>

 

   return retval;

   }