Watch out when using ‘image’ input types, since the $_REQUEST variables you get vary depending on the user’s browser. Let’s say you’ve got this input field: <input type="image" src="go.png" value="go" name="pagination_submit" /> In Firefox (and I assume most other logical browsers) you’ll get three $_REQUEST variables from this input: ‘pagination_submit’, ‘pagination_submit_x’, and ‘pagination_submit_y’, where the [...]