Replacing special charactes with "?"

[PMysore1]

Hi We are using Xalan XSLT for XML to XML transformation and when the input XML contains special characters like � we want transformed XML to contain question marks inplace of special characters. I saw lot of postings where they had issues in retaining special characters. Please let me know any tags that will replace the special characters with "?". Below i have copied the top few lines of the XSLT that we are currently using.   <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">  <xsl:template match="/"> .................................   Thanks   Pradeep