You can clone with
HTTPS or Subversion.
Hi i realy love js-beautify and i use it a lot but when i paste a lot of code so it exceeds the are of the text box and has to scroll the page also scrolls to the end and this is really annoying
Yes, there are things with the pretty textarea that I don't like myself. For now, I can suggest you to use link "Turn off bells and whistles", http://jsbeautifier.org/?without-codemirror , which puts the plain old textarea back —it won't have any annoying effects.
This is external and not something I think we can fix beyond what has already been done.
Update code mirror and jquery
Tune the web page scrolling a bit as well.