0826:Effect.Shrink = function(element) {
0827:  element = $(element);
0828:  var options = Object.extend({
0829:    direction: 'center',
0830:    moveTransition: Effect.Transitions.sinoidal,
0831:    scaleTransition: Effect.Transitions.sinoidal,
0832:    opacityTransition: Effect.Transitions.none
0833:  }, arguments[1] || { });
0834:  var oldStyle = {
0835:    top: element.style.top,
0836:    left: element.style.left,
0837:    height: element.style.height,
0838:    width: element.style.width,
0839:    opacity: element.getInlineOpacity() };
0840:
0841:  var dims = element.getDimensions();
0842:  var moveX, moveY;
0843:  
0844:  switch (options.direction) {
0845:    case 'top-left':
0846:      moveX = moveY = 0;
0847:      break;
0848:    case 'top-right':
0849:      moveX = dims.width;
0850:      moveY = 0;
0851:      break;
0852:    case 'bottom-left':
0853:      moveX = 0;
0854:      moveY = dims.height;
0855:      break;
0856:    case 'bottom-right':
0857:      moveX = dims.width;
0858:      moveY = dims.height;
0859:      break;
0860:    case 'center':  
0861:      moveX = dims.width / 2;
0862:      moveY = dims.height / 2;
0863:      break;
0864:  }
0865:  
0866:  return new Effect.Parallel(
0867:    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
0868:      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
0869:      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
0870:    ], Object.extend({            
0871:         beforeStartInternal: function(effect) {
0872:           effect.effects[0].element.makePositioned().makeClipping(); 
0873:         },
0874:         afterFinishInternal: function(effect) {
0875:           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
0876:       }, options)
0877:  );
0878:};
0879:

0880:Effect.Pulsate = function(element) {
0881:  element = $(element);
0882:  var options    = arguments[1] || { };
0883:  var oldOpacity = element.getInlineOpacity();
0884:  var transition = options.transition || Effect.Transitions.sinoidal;
0885:  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
0886:  reverser.bind(transition);
0887:  return new Effect.Opacity(element, 
0888:    Object.extend(Object.extend({  duration: 2.0, from: 0,
0889:      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
0890:    }, options), {transition: reverser}));
0891:};
0892:

0893:Effect.Fold = function(element) {
0894:  element = $(element);
0895:  var oldStyle = {
0896:    top: element.style.top,
0897:    left: element.style.left,
0898:    width: element.style.width,
0899:    height: element.style.height };
0900:  element.makeClipping();
0901:  return new Effect.Scale(element, 5, Object.extend({   
0902:    scaleContent: false,
0903:    scaleX: false,
0904:    afterFinishInternal: function(effect) {
0905:    new Effect.Scale(element, 1, { 
0906:      scaleContent: false, 
0907:      scaleY: false,
0908:      afterFinishInternal: function(effect) {
0909:        effect.element.hide().undoClipping().setStyle(oldStyle);
0910:      } });
0911:  }}, arguments[1] || { }));
0912:};
0913: