Advances to the specified node after the specified number of seconds have elapsed since the arrival at the current node.
If another event with a <next_node> specified occurs before the timeout, such as a button click or a media custom event, that event will cancel the timeout unless the optional attribute spanning is set to YES.
A timeout may also be cleared explicitly using <timeout>CLEAR</timeout>.
Child of: <node name="">
Parent of: Nothing
Examples:
<timeout seconds="7" node="a_node"/>
<timeout seconds="7" node="a_node" spanning="YES"/>