How to replace Revere window sash

Sometimes it’s necessary to replace a sash in a window, for instance let’s say you were showing your son how to do the Crane Kick from the Karate Kid (I’m just sayin) and perhaps the years have not been kind to you and have rendered you a bit less flexible than you were when the movie came out and you end up doing the scene in the old western where the guy falls thru the window and now you have a bruised ego and a broken window.
So now it’s time to show your son how to do home repair, well we got your back Mr. Ninja stunt repair man, watch this short video and you’ll be able to change that broken sash like a pro.

[youtube]http://www.youtube.com/watch?v=nS0s4tE1Guw[/youtube]