Android: input field does not fire event when hitting 'next' on keyboard

I have multiple input fields on a html page optimized for Android.

The problem is that the event "onchange" is not always triggered when 'next' is clicked on the virtual keyboard.

To me this seems to be a similar to issue 7459 of the Android browser: http://code.google.com/p/android/issues/detail?id=7459

How can I circumvent or compensate this issue? I need to calculate and refresh another input field in the function calc() after 开发者_开发问答the value of any of the fields has been changed. If available even Android specific events or behaviours can be used.

Thanks, Holger