How to execute javascript from a bookmark

In Firefox, if you put "alert('what is up');" as a path to a bookmark, then that js will execute when you "go to" that bookmark. But how do you do this in other browsers? I doesn't work in IE. I honestly haven't checked the others. But if you have, and it's not the same as above, could you please share your wisdom?

They're called "bookmarklets" and they work fine for me in FF, IE, and other browsers.

However, I'm surprised that this would work:

Usually you need to use the "javascript:" pseudo-protocol:

Yup. Forgot the "javascript:" I didn't realize there is a name for this, bookmarklets. Funny, I thought I was pretty clever using it. I see here I'm only about 15 years late on the bandwagon
http://www.bookmarklets.com/tools/data/index.phtml

Thanks Kravvitz