New ui

redesign based on the latest code.
![capture](https://f.cloud.github.com/assets/3762838/560132/141a714e-c469-11e2-8d95-1db1707b9a67.jpg)

hope you like it :]

in the context.js, i only changed some names of the HTML elements, 
and added mine RTL check. (and it OK no)