Only submit after validation

Only submit after validation

So I have some stuff I want to do when a form is submitted. It looks like this:

  1.     $('#scan').submit(function(event) {
             
              $('#log').fadeOut(1000, function() {
             
                $( "#log" )
                    .load( "../log.html")
                    .fadeIn("slow", function() {
                        $( "#log p:first" ).effect("pulsate", { times:3 }, 500);
                   
                });
                   

              });
         
              event.preventDefault();

        });















But I am using the validation plugin:

http://docs.jquery.com/Plugins/Validation/Methods

and I don't want that stuff to happen unless it passes all the validation. For example, if a field is required, all of that stuff gets executed regardless if there is anything in the required field. How do I stop that from happening?