[otrs] DTL and the CGI Environment Hash

I'm trying to create a web link in the AgentNavigationBar.dtl to our bug logging system. Our developers sometimes work from home so I thought I could make the link intelligent based on their IP. Basically I'm trying to do something like this, but it's not working. How Do I get access to the $ENV table in DTL or am I going about this all wrong? and later... <td>http://$Data{"Server"}/bugtrack/" target="_blank">$Text{"BugTracker"}</a></td> Thanks for any assistance. CT