perf_alert
Recent Features
![Page Visibility API]()
Page Visibility API
One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?
![From Webcam to Animated GIF: the Secret Behind chat.meatspac.es!]()
From Webcam to Animated GIF: the Secret Behind chat.meatspac.es!
My team mate Edna Piranha is not only an awesome hacker; she's also a fantastic philosopher! Communication and online interactions is a subject that has kept her mind busy for a long time, and it has also resulted in a bunch of interesting experimental projects...
Incredible Demos
![Create a Custom “:selected” Pseudo Selector in MooTools]()
Create a Custom “:selected” Pseudo Selector in MooTools
A while back I read a very interesting article by MooTools core developer Jan Kassens about how to create a custom pseudo selector in MooTools. I was surprised at the ease in which one can add their own pseudo selector that I...
![JavaScript Battery API]()
JavaScript Battery API
Mozilla Aurora 11 was recently released with a bevy of new features. One of those great new features is their initial implementation of the Battery Status API. This simple API provides you information about the battery's current charge level, its...
