###Goal:
- The goal of this lab is to write code that reacts to events and uses animation. It is also a good opportunity to practice various JavaScript debugging strategies.
- For an example, check out the Twitter Bootstrap Carousel
- We are going to rebuild this from scratch.
- Add event listeners for mouseover and mouseexit to change the opacity of the next and previous buttons.
- Implement toLeft and toRight functions that will move the margin to display either the next or previous image.
- add a slide show button that automatically cycles through the images
- Get the animation working so that the images slide across rather than just appearing