A 'Submit' button allows sending the information in the form to either a sensor or an external page.
The form action determines what happens when the form is submitted. The behavior of the 'Submit' button is defined in the properties of the Form.
Technical note: to use an image for submitting
the form (instead of the standard Submit button) execute the following
steps:
1. insert the image in the form
2. edit the source code : replace <IMG by <INPUT TYPE="IMAGE"
Source code: <input name="submit" type="submit" value="submit" />
