title: Embedding youtube video dynamically
body: <p>I want to add dynamic youtube video embedding functionality to my web page, i.e. as soon as user finishes typing youtube url in the textbox, video gets embeded beneath the input box automatically, if the url is valid ofcourse.</p>
  
  <p>I think this can be done with jquery, about which I have least idea. So please help me accordingly.
  Any elaborate help is much appreciated.</p>