A value indicating whether a given button on the joystick is pressed.
<joystick>
A value of zero indicates the button is not pressed. A nonzero value indicates the button is pressed. This is a collection property with a maximum of 32 buttons.
The following displays the value of a button on the joystick:
<page somepage>
position of button 10 = <% joystick.button.10 %>
</page>