I recently received a request to update the grid960 bookmarklet to support 24 columns. I hadn’t realised that 960.gs had been updated.
So, here it is!
To install the bookmarklet simply drag the link below to your bookmarks toolbar. In Internet Explorer, right click, select ‘Add to favourites’ and then select ‘Links’.
For further information on this bookmarklet, see my previous post

Many thanks for this great tool! :-)
Great tool, Howie, and thanks for sharing. However, I noticed that when you have a layout with absolutely positioned elements the grids never show up. I’m going to try playing around with the script a bit and I’ll post back here what I find out. :)
The jQuery detection logic you use now checks for a version of jQuery that is no longer the most recent version. So even if I’ve already loaded the latest version of jQuery the bookmarklet still loads v1.4.2.
Perhaps instead of explicitly checking for v1.4.2 you should use feature detection to check for whatever critical feature it is that you need in v1.4.2 and then load jQuery only if that feature doesn’t exist. Since that feature will still exist in later versions it won’t overwrite newer versions of jQuery.
Good point Richard. Gosh, I hardly use this tool as I don’t do much front-end development these days, but clearly others like it. Now that jQuery 1.5 is out I’ll have a rethink.
The tool is only used for development, so loading the extra library on the fly isn’t a biggest crime. The important thing is that it does not conflict with an in place library. Most people developing a site will be using the latest jQuery release. Perhaps I should just use the latest.
Shame that none of the CDN versions are labelled ‘latest’ :-/
Actually, the Google CDN does have a ‘latest’ version. Just use https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js and it will always serve the latest 1.x version. (They haven’t upgraded to 1.5 yet as it was just released the other day…)
How does one extending the grid past the initial page fold? I am on Firefox 4.0.1 (Mac-Intel)
Is it possible to play with the alignment of the grid overlay? For example, shift it x number of pixels to the left or right? It might just be the site I am looking at, but nothing lines up with the grid, including the main content area. If I can shift the grid to align with the content area, then I can at least determine if the elements are out of whack or the whole page is out of whack…
This tool is wonderful.Many thanks for sharing.