The DOM element that triggered this Ajax request, or an id string of the element to use as the triggering element.
Optionalevent: EventThe DOM event that triggered this Ajax request. The
event argument is optional.
false if any scripts in the chain return false,
otherwise returns true.
A varargs function that invokes an arbitrary number of scripts. If any script in the chain returns false, the chain is short-circuited and subsequent scripts are not invoked. Any number of scripts may specified after the
eventargument.