[jQuery] redundancy - dimensions plugin and toggle?

[Priest, James (NIH/NIEHS) [C]]

I've got some toggle code where I want to check the height of something
using the dimensions plugin and am not sure the best way to do this:

                $('.container').toggle(
                        function() {
        
$(this).removeClass('right').addClass('down');
                                
                                // check height of window and if too
tall - show bottom nav
                                if ($('#wrapper').height() > 400) {
                                        $('#bottomnav').show();
                                } else {
                                        $('#bottomnav').hide();
                                };
                        },
                        function() {
        
$(this).removeClass('down').addClass('right');
                        
                                // check height of window and if too
tall - show bottom nav
                                if ($('#wrapper').height() > 400) {
                                        $('#bottomnav').show();
                                } else {
                                        $('#bottomnav').hide();
                                };
                        });

Seems like I should be able to simplify the height check instead of
doing everything twice??? 

Thanks,
Jim