CSS/Javascript (or JQuery) tutorials on combo box and Facebook-like Message composer

1) I want to redesign a com开发者_如何学Cbo box using CSS and (minimal or none if necessary) javascript. I was wondering if there are good tutorials out there you've come across that can help me with it.

2) For Facebook users, you are aware that you can type 1 or more recipients on the address bar and it'll create a "button" around the user. How does Facebook do it? Is there any tutorials out there?

3) How to do autocomplete dropdown box in Javascript?

Thanks in advance.

1) You will need to use some javascript. I'd suggested getting familiar with jquery. http://www.reynoldsftw.com/2009/03/11-jquery-plugins-to-enhance-html-dropdowns/ should give you what you need to get started.

2) I've copied this feature myself...and its not easy. I don't know of any tutorials out there. But I'll tell you that it utilizes autocomplete.

3) http://docs.jquery.com/Plugins/Autocomplete should do it for you. Once again: use jQuery.