This isn't related to what you are asking about, but for future questions, it makes it a lot easier to read if you put tags around your code and add other appropriate formatting. Check out Markup in the Monastery.

Also, if you look at the code you posted, the square brackets vanished and turned the text inside to a link because outside of code tags, square brackets are used for creating links (checkout What shortcuts can I use for linking to other information? for more info.)