Hi Team,
Our project is using the Yahoo User Interface that you can find more information from the URL below.
http://developer.yahoo.com/yui/#start
I think that we can choose something from the library to use in our project it's a very cool library. You can creat a Drag and Drop component and etc.
The YUI also provides the Security for the Website also. I think they have experiece in developing the website so we should rather use the library instead of developing a new library that may cause so many problems.
Nattakorn