Very useful Javascript feature that can prevent a user from losing the data they are entering in an entry field or text editor in case of unintentional leaving of a page.
The Inca Empire or Inka Empire was the largest empire in South America. It was the last sovereign political entity that emerged from the Andean civilizations before conquest by Spaniards.
Sometimes you don't want your Mac OS X Mountain Lion powered computer to go to sleep, here's a nice little trick how to temporary prevent a Mac from going into a sleep mode.
I probably don't need to tell you that there's no such thing as a justified or reasonable cause for starting a war, ever. Watch this video and I think you will know what I mean.