Submitbutton should not reload the whole page.

Using NetOs6 with RomPager I like to make a form with several buttons: on and off, reset, etc. When I push one of the buttons, the c-function will be called and the HTML-page updated. This is not practical using a page with layers because the page always switches to the entry-point. Is there a possibility that only calls the c-function? (Without updating the HTML-page)? It works with [i]