[javascript] How do I delay a function call for 5 seconds?

I want widget.Rotator.rotate() to be delayed 5 seconds between calls... how do I do this in jQuery... it seems like jQuery's delay() wouldn't work for this...

var rotator = function(){
  widget.Rotator.rotate();
  setTimeout(rotator,5000);
};
rotator();

Or:

setInterval(
  function(){ widget.Rotator.rotate() },
  5000
);

Or:

setInterval(
  widget.Rotator.rotate.bind(widget.Rotator),
  5000
);