Concatenate images with HTML5 Canvas.

I often need to concatenate images into a single image. It's a simple operation, but I never found the right tool to do that. So I made one. It's very simple, read the code, you might learn some stuff:

• In action: paulrouget.com/concatenator
• Code (just one file): github.com/paulrouget/concatenator

Feel free to improve, fix bugs, add options…