You won't need to create a separate JavaScript file, but you can if you like. If you do use a separate $.$js file, you'll either need to put that array in the $.$js file, or do research on how to pass arrays in JavaScript, which is not the easiest task. You'll need two buttons. Make sure HTML page title says $"$CSD $340$ Web Development with HTML and CSS$".$ Rename the h$1$ text value to "Assignment $12\mathrm{.}2$: JavaScript $-$ Part $4".$ Take the current list of your top ten books, place the book titles into an array. Create two buttons. One button should be labeled "Top to Bottom", the other button should be labeled "Bottom to Top". Create a javascript section. Add two functions; one for displaying the array elements in ascending order, the other to display the array elements in descending order. When the 'Top to Bottom' button is clicked, the contents of the array should be displayed in ascending order. When the 'Bottom to Top' button is clicked, the contents of the array should be displayed in descending order.