Show javascript screen and window size

Click "show sizes" to read the current dimensions then use crtl-mousescroll and click again.

Explanation: Javascript can read the screen and window sizes. Both of them change when you use crtl-mousescroll to zoom in or out. This page allows you to test the behavior and get an understanding as to what numbers will be returned.

Written by Guido Socher, License: free, take it and do whatever you want.