Dashboard app for Macs, are these cocoa based also?

I downloaded this Mac app that installed in 开发者_运维问答my dashboard area, are these special apps or simply regular cocoa based apps that just installed in a specific area on my computer?

this is the app: http://bit.ly/8xKiH

As @Alexsander correctly answers, Dashboard widgets are miniature web apps: HTML, CSS, and JavaScript. However, a lot of them are also powered by custom plugins, which are written in Cocoa. Check out the documentation for more info.

A Dashboard widget is simply an HTML "project" that lives within its own sandbox in the Dashboard.