[support] Setting head_title and title independently

Thanks. As I understand it, those functions are used in an individual theme. I am trying to find a way to set those variables in the module itself so that it will work for any theme without having to add a template.php file to each individual theme with one of those functions in them. If I define a theme_[module_name]_page_title function would whatever it returns be passed as $page_title to the templates, or would there be a way within such a function to make sure a variable gets passed to the templates? I am still trying to figure out the flow between modules and themes.

Thanks for the help,

David