Auto Scroll HN Comments (or any site) like an Autocue

I avoided using "Show HN" as it implies something a bit more substantial, but I figured I'd share a small piece of Javascript to scroll the webpage so that you can sit back and read comments without scrolling manually.

Highlight and drag the code below to your bookmarks bar (or create a new bookmark and set the code below as the address, but be sure to include the 'javascript:' part).

javascript:var isScrolling; var scrolldelay; function pageScroll() { window.scrollBy(0,1); scrolldelay = setTimeout('pageScroll()',25); isScrolling = true; } if(!isScrolling) { pageScroll(); } else { isScrolling = false; clearTimeout(scrolldelay); }

To increase or decrease the speed, you can change the 25 in setTimeout(‘pageScroll()’,25) to however many milliseconds you want to pass before updating the page. The higher the number, the slower it will scroll.

Click on the bookmarklet to start and stop scrolling.

Enjoy :)