Wordpress Login Shake

// Function
jQuery.fn.shake = function(intShakes /*Amount of shakes*/, intDistance /*Shake distance*/, intDuration /*Time duration*/) {
     this.each(function() {
          $(this).css({position:"relative"});

          for (var x=1; x<=intShakes; x++) {
           $(this).animate({left:(intDistance*-1)}, (((intDuration/intShakes)/4)))
                    .animate({left:intDistance}, ((intDuration/intShakes)/2))
                 .animate({left:0}, (((intDuration/intShakes)/4)));
          }
     });
     return this;
};

// Usage
$("#submit").click(function() {
     $("#login-container").shake(3, 16, 600);
});

shake / login / jquery / wordpress