[chunky]

Check out decodeURIComponent() and take a look at MIME types.
Use type="video/mp4" for mp4 videos and the URL gets encoded so it isn't put in the source tag properly.


(The %3A  is supposed to be a : )

Change line 32 to the following and it will work:

Code:

document.write('<video width="320" height="200" controls><source src="' + decodeURIComponent(video_id) + '" type="video/mp4">Your browser does not support the video tag.</video><br><br><br>');

Btw the code is very bad actually so you should think about improving it