I am developing a web page that has to update things periodically with out refreshing the webpage (I have multiple forms in my web page and I don't want to disturb other forms). I can get the things back to the web page and they can be updated periodically when I use a single form. But the problem is when I use multiple forms in a single web page I am not able to refresh the single form. Can any one provide some tips how can I send single form request to the server.

Note: Please remember that I can't use submit buttons or anchor tags for submiting the form. It should be done automatically.