How to create AJAX events to sum three form fields

Hi,

I have created form using script case.

Please tell me how to sum three form fields and it should show results on fourth field.
I know this can be done by ajax on change event.

can any one tell me the coding for oncahnge event to sum three fields and results should show in fourth fields

Am using mysql database

Thanks in advance

Re: How to create AJAX events to sum three form fields

Hi rajuleo - I answered this question in http://www.scriptcase.net/forum_en_us/index.php?topic=1675.0

take care,
sifa