Get Safari (Lion) to hopefully always indicate & show scrollbars correctly

forceScrollbars.coffee

# CoffeeScript source

$.fn.forceScrollbars = ->
  @css position: 'static'
  @[0].offsetHeight if @length > 0
  @css position: 'relative'

gistfile1.js

// nudge safari 5.1 to (hopefully) display scrollbars correctly

(function() {
  $.fn.forceScrollbars = function() {
    this.css({
      position: 'static'
    });
    if (this.length > 0) {
      this[0].offsetHeight;
    }
    return this.css({
      position: 'relative'
    });
  };
}).call(this);

Note: it works often, but not always, I still have some elements that just never show the Lion-style scrollbars, or any scrollbars ftm. Any ideas are welcome.