Hi,

Thank you, substring-after and substring-before are perfect.

The real world data actually has the 3 types of domain names

EG:

>> <server dn="media1.mysite.com" id="server392" os="FreeBSD 5.1"/>
>> <server dn="media2.mysite.com" id="Server488" os="Fedora Core 1"/>
>>    ...
>> <server dn="media10.mysite.com" id="Server433" os="Fedora Core 1"/>

>> <server dn="members1.mysite.com" id="server322" os="Debian Linux"/>
>> <server dn="members2.mysite.com" id="Server435" os="Fedora Core 2"/>
>>    ...
>> <server dn="members10.mysite.com" id="Server491" os="FreeBSD 4.11"/>


<xsl:sort
select="substring-after(substring-before(@dn, '.'),'media')"
data-type="number"
order="ascending"/>

I don't think I can use a regular expression as the second parameter
for substring-*

Topxml.com says : 'The string that is searched in the source string'.

Is it possible to substing-* on '/media|members/' ?

Many thanks.
Regarda,
Rudi.