sub some_mode {
    my $tmpl_object = $self->load_tmpl('my_tmpl.html');    
            
    $tmpl_object->param( param1 => 'foo'
                         param2 => 'bar',
                         param3 => 'baz');
    
    
    # Poke the data for the top part of the page into the $tmpl_object
    get_top($tmpl_object);
    
    # Ditto for the left side of the page
    get_left($tmpl_object);
    
    # Display the entire templated page 
    return $tmpl_object->output;
}