jQuery listSwap

ListSwap is a jQuery plugin that allows you to swap (add/remove) items between two drop-down lists.

- jQuery suppport: 1.3+ - Browser support: All major browsers, IE8+ 

Usage:

$('#source, #destination').listswap(); 

Default Options:

truncate : false, //Set to true to disable word wrap height : null,	//Set custom height is_scroll : false, //Show scroll label_add : 'Add', //Set add label (Can bet set to empty) label_remove : 'Remove', //Set remove label (Can bet set to empty) add_class : null, //Custom class for styling rtl : false, //RTL support 

Try it here http://phedde.github.io/listswap