howto create an Ajax Popup Form and submit the form

I like to request a ajax-popup bij clicking on a link with variable. The popup will show some date req开发者_如何学Cuested from the server. After submit the data will be checked on the server and send a responce back. Depending on the responce, new content will be showed in the popup. The user can close the popup afterwards.

I have searched a while for a tutorial or example, but i can't find any.

Who can give me an example or suggestion to startup?

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Check into the jQuery UI Dialog widget. It can do what you need. You just put the controls, text, etc into a DIV, and then invoke the method to pop the dialog. Since the code is in a div, you can update it dynamically with the results of ajax calls as needed.