I have an XML file that a user can upload to any website that will pull both the XSL file and the XML data. It looks like this:

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="http://www.tblog.com/templates/traditional/xsl-style.xsl"?>
<!DOCTYPE letter [
<!ENTITY disclaimer SYSTEM "http://www.tblog.com/xml_parse.xml?bid=rocky">
]>
<data>
&disclaimer;
</data>

If you were to paste that in a file named whatever.xml it should pull my page. However, I have links that need to activate HTML on the page. How do I turn on/off data in my XSL (or XML) by using an href?