<speak>
Examples:
<speak delay="0" time="NA">This is an example of a
speak instruction</speak>
<speak delay="30" time="NA">This is an example of
a speak instruction</speak>
<speak delay="Plus15" time="NA">This is an example
of a speak instruction</speak>
<speak delay="0" time="!7:34:55">This is an example
of a speak instruction</speak>
Behavior:
Every swfml statement has the delay and time attributes. If none are present
the default delay is "0" and
the time default is "NA", which will result in immediate execution
of the swfml statement.