how to transform a dropdown list to a button with dropdown list popup

I need to modify a dropdown list: http://dl.dropbox.com/u/72686/now.png

to this widget (not sure how to define it): http://dl.dropbox.com/u/72686/later.png

开发者_运维技巧I can use jQuery for it.. or maybe there is a html form element ?

thanks

You may take a look at this jquery plugin allowing you to customize the look and feel of the default dropdown boxes.

I've solved in a very very simple way:

I just removed the attribute size from html code:

<select size="5">

to

<select>