jQuery SortSelect plugin will help you make your select fields more user friendly when you have a lot of options. Works great with options like cities, countries and many more.Please visit the Live Preview to see the effect.
Features
Software Version: jQuery 1.4.3 and older, jQuery Easing Plugin Compatible Browsers: IE8 , IE9, Firefox 3, Firefox 4, Safari 5, Opera, Chrome Group by a letter on a custom position – helpful if your options have a prefix (e.g. “city”) Default value – makes the first value default, so it will be always on top of the list