[Name] delay [Required] false [Type] ECMAScript Expression [Default Value] '0s' [Description] The character string returned must be interpreted as a time interval. The send element must return immediately, but the event must not be dispatched until the delay interval elapses. Timers are useful for a wide variety of programming tasks, and can be implemented using this attribute. Note: The delayed event queue for sending events must be maintained locally. Any events waiting to be sent must be purged when the session that issued this request terminates. [Valid Values] 
An ECMAScript expression which returns a character string in CSS2 [CSS2] format