This function is
EXPERIMENTAL. The behaviour of this function, its name, and
surrounding documentation may change without notice in a future release of PHP.
This function should be used at your own risk.
Adds the given action to the button for the given
conditions.
Parameters
action
An SWFAction, returned by
SWFAction::__construct.
flags
The following flags are valid:
SWFBUTTON_MOUSEOVER,
SWFBUTTON_MOUSEOUT,
SWFBUTTON_MOUSEUP,
SWFBUTTON_MOUSEUPOUTSIDE,
SWFBUTTON_MOUSEDOWN,
SWFBUTTON_DRAGOUT and
SWFBUTTON_DRAGOVER.