How to deobsfucate Javascript
In chome load the web page then load up developer tools = Ctrl + Shit + I
Next click on the scripts tab and then just right click and a deobsfucate option is right there. If it is not there then there may also be a pretty print button at the bottom of the screen:
There is also a simillar feature with the developer tools built into Internet explorer. In IE hit F12 to load up the developer tools then click onto the scripts tab. Then select the Format Javascript option as shown below: