href with & ?

I have the following code to create a link that will call a servlet.  :

<xsl:for-each select="Code">
               <br/>
        <A href="../TransformXMLServlet?code={.}&"><xsl:value-of 
select="."/></A>
          </xsl:for-each>

It works until I put the & in before the value statement.  Is there a way to do 
this?  I havent' seen this issue in the archives.  

Thanks!
Rick

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list