Sticky Vertical Navigation Menu

JavaScript
14

Fret, what about just adding a class? Keep the CSS, in the CSS

if ( ypos > max_scroll) {
     $('#primary-navigation').addClass("sticky");
} else {
    $('#primary-navigation').removeClass("sticky");
}

#primary-navigation {
  /*default*/
}
#primary-navigation.sticky {
  position:fixed;
  bottom:0;
}

The jQuery probably isn’t right, but the concept is there.