Select 'Advanced | Template Manager | Main' and amend the 'Nav. Item' template (Frame Nav. Item if using frames) to include the required HTML code around the variable NETQUOTEVAR:NAVTEXT.
You can do the same with the Brochure Navigation text, select the 'Brochure' tab in Template Manager and select 'Nav. Item'.
You can do the same with the Brochure Navigation text, select the 'Brochure' tab in Template Manager and select 'Nav. Item'.