jquery on animation start code example

Example 1: how to run function after animation complete jquery

$('#header .pointerarrow').animate(
    { left: linksstart + breedte },
     400, function() {
       // Animation complete.
  });

Example 2: jquery animation

$( "#clickme" ).click(function() {
  $( "#book" ).animate({
    opacity: 0.25,
    left: "+=50",
    height: "toggle"
  }, 5000, function() {
    // Animation complete.
  });
});