hello what is a simple code for this question DOM Modify the chapter 5 example (photo viewer) to include t

Question: DOM Modify the chapter 5 example (photo viewer)

Modify the to include the following features:

1. When the user clicks on a picture and it opens a window containing a zoomed version of the image, give her a hyperlink (button) to add the pic to a favorites area at the bottom of the first page (add img nodes to the DOM).
2. A maximum of 5 pics can be added to the favorites. After that a message is displayed to remove at least a favorite first.
3. If the user clicks on a favorite, a Remove link (button) shows up next to that picture. If the user clicks it, the pic is removed from the favorites.
4. (10% of the grade) Use good web design practices to enhance visually your html page. Add a title, picture, copyright line, etc.