Tips for reading
Using arrow keys:
First, click on the script. Then, use the up and down arrows to scroll through it.
Using a mouse:
Hold the mouse over the script and use the scroll wheel in the mouse’s centre to scroll through the script. This will work as long as the cursor rests over the script on the page.
Using a trackpad:
Use two fingers when the cursor is on the script, and you can scroll through it easily.