      *  If the sort uses the default compareFunction, returns
      *  <code>true</code> if the
      *  <code>property</code> parameter specifies a sort field.
-     *  If the sort or any ISortField uses a custom comparator,
+     *  If the sort or any <code>ISortField</code> uses a custom comparator,
      *  there's no way to know, so return <code>true</code>.
      *
      *  @langversion 3.0

     *  fields listed in the fields property result in an indeterminate or
     *  non-unique sort order; that is, if two or more items have identical
     *  sort field values. An error is thrown if the sort is not unique.
     *
     *  @default false
     *

     *                and second fields in this parameter, but you cannot
     *                specify  only the first and third fields.
     *  @param mode String containing the type of find to perform.
     *           Valid values are:
     *             <table>
     *               <tr>
     *                 <th>ANY_INDEX_MODE</th> 
     *                 <th>Return any position that
     *                   is valid for the values.</th>
     *               </tr>
     *               <tr>
     *                 <th>FIRST_INDEX_MODE</th> 
     *                 <th>Return the position
     *                   where the first occurrance of the values is found.</th>
     *               </tr>
     *               <tr>
     *                 <th>LAST_INDEX_MODE</th> 
     *                 <th>Return the position where the
     *                   last ocurrance of the specified values is found.
     *                 </th>
     *               </tr>
     *               </table>
     *  @param returnInsertionIndex If the method does not find an item
     *                     identified by the <code>values</code> parameter,
     *                     and this parameter is <code>true</code> the 
