XALAN

Hello,
I have a question. I would like to transform XML using XALAN and XSL.
If catching tag <source>, I would like to handle it with my own method. The
result should be some text( String).
What I would like, is, that this String may contain substring "<source>".
But when running, I obtain "&lt;source&gt;", not "<source>".
Is it possible to change this?
Thanks for any help.

  <xsl:template match="source">
    <xsl:variable name="ID" select="string(./@ID)"/>

    <xsl:variable name="text"
        select="java:miro.MyClass.getText($ID)"/>
    <xsl:value-of select="$text"/>

  </xsl:template>


public static String getText(String ID)
{
    String text = new String();
    //.................
    return text;    //text may contain substring "<source>"
}