slideDown(speed, callback): Only the height is adjusted for this animation : slideDown « jQuery « JavaScript Tutorial

<html>
  <head>
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){

            $(document.body).click(function () {
              if ($("div:first").is(":hidden")) {
                $("div").slideDown("slow");
              } else {
                $("div").hide();
              }
            });


        });
    </script>

  </head>
  <body>
    <body>
          <div>asdf</div><div>asdf</div><div>asdf</div><div>asdf</div>
    </body>
</html>

30.99.slideDown
	30.99.1.	Hide and Slide down
	30.99.2.	Slide down and set focus
	30.99.3.	Slide down fast
	30.99.4.	Slide down form fields
	30.99.5.	Slide down in milliseconds
	30.99.6.	Slide down slowly
	30.99.7.	Slide to show para
	30.99.8.	slideDown(speed, callback): Only the height is adjusted for this animation