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Tutorials - Understanding Forms and Input Fields By: FYICenter.com Part:
  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17   18  19  20  21  22  23  24  25  (Continued from
previous part...) What Are the Values Submitted on Image Button Fields? An
"image" button input field does not allow viewers to enter any input values
directly. But if an "image" button is clicked, the mouse position on the
image button will be submitted with other input values to the processing
program based on the following rules: If an "image" button is not clicked,
no values will be submitted for this image button. If an "image" button is
clicked and no "name" attribute is specified, mouse position in pixel
coordinates will be submitted under name x and y as: x=nn&y=nn. If a
"submit" button is clicked and name="fieldName" attribute is specified,
mouse position in pixel coordinates will be submitted under name
fieldName.x and fieldName.y as: fieldName.x=nn&fieldName.y=nn. If you
use the previous tutorial example, you can test the following cases: 1. If
you click the first image button, you will get the following value
submitted: http://localhost/submit?channel=google&x=31&y=8 2. If
you click the second image button, you will get the following values
submitted: http://localhost/submit?channel=google 3. If you push the third
submit button, you will get the following values submitted:
http://localhost/submit?channel=google&del.x=18&del.y=8 (Continued
on next part...) Part:   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17   18  19  20  21  22  23  24  25  Selected Developer
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