turn getImageUrls() into its own fn. previously it was part of another one. add an option to displayImage() about whether to put a gallery id on the div it creates or not.
add a "favourites" area that will show a slideshow of my fave images. an image that is a fave comes from a post. store the image name in the db (since there may be multiple images per post). the slideshow will show images and clicking an image will go to the original post