HeapBox

Customizable replacement for html select (not only) with events, callbacks, themes and much more.

searchSelect

jQuery plugin for searchable and scrollable select lists while keeping default button style.

SelectUnique

Given a group of select fields with the same options, SelectUnique will remove an option from the other fields when it’s selected, and put it back when it’s changed.

jQuery.selectimus

Selectimus jQuery plugin allows to replace standart selects in each browser by identical ones.

jQuery editable select box

This plugin allows you to make a select box editable like a text box while keeping it’s select-option features

Toggle Dropdown Options

Hides and shows in a elements in all browsers. (Other methods do not work in all browsers!)