This is a bookmarklet that decomposes Hangul (한글) characters into their component Jamo or sounds in the browser. It might be useful for people who, like me, are learning Hangul and having difficulty reading very small characters and working out which bit is doing what. Here's how to use the bookmarklet:
This has been tested in Firefox 1.5, and it'll probably work in Firefox 2.0, but for other browsers you're on your own. The code is based on the Unicode Specification v5.0 Hangul Syllable Decomposition algorithm, in section 3.12. There's a Python version available too.
Here's a screenshot of what the script does: