would you please help me to show how to add youtube like this link http://www.youtube.com/watch?v=sqzSlbZ4BCE

when i use this command <embed width="450" hight="350" src="http://www.youtube.com/watch?v=sqzSlbZ4BCE"</embed> the screen still black !!!!

and i want if i can to upload video and what type should i use to play the video???

Thank very much for the answer ... now i downloaded movie from youtube , how can i upload it to the server?? and which video type should i use??

If you want to host videos on your web page, you can use HTML objects such as <video> (html5), object, and embeded. You can use all three so that the first element supported by the visiting browser will use it. what format of video where you considering? .mp4, .webm, .ogg?

Some additional info: How to Play Videos in HTML