Since last time a try of wizard,which was a prototype for my practice, and now I want to make a real use one.
Details on Wiki Page:

Wizard is derived from Ext.BasicDialog, but it makes use of a dialog template with Back, Next, Cancel, and Finish buttons, to create simple generic wizard skeletons. Any of your dialog resource can be filled in custom wizard.

See the demo for the latest source or direct download JS Source.

Any and all ideas are welcome,thanks in advance!