Mobile handset with browser application to be used to recognize textual presentation

A mobile handset for use in a mobile communications system includes a user interface, a radio communications front end, a radio transceiving antenna, and a browser application to interpret a multimedia document received from a remote server. The browser application recognizes textual presentation markup tags in the document and presents text to a user in accordance with the markup tags. The browser application recognizes a standard set of document-independent local library file markup tags in the document, and stores a standard set of non-textual local library files corresponding to the local library file markup tags. The browser application further presents content provided by one of the local library files via the user interface in response to the recognition of one of the local library file markup tags in the document.