Ajax Event on Button

Hi
i put a button in my form:
Make a new field type label, content <button type=“button”>Click Me!</button>

Now i like to execute an sql Statement (add a record in the detail table) and reload the detail table. If possible, without loading the whole form.

Can i catch an Ajax Event on the button (label field)?
How can i reload the detail form with code?

Best regards
Steve

P.S: Would be great, if SC make a field type button…

I would like to know the best method to accomplish this also. I have been able to use a checkbox with an onclick to ajax function that updates a database… but I would really like a button instead.

Please don’t double post.