title: How to access the webcam by javascript
body: <p>I need to open the webcam via JavaScript
  I know it is possible to access the html5 by <code>&lt;video&gt;</code> but need access webcam with pure JavaScript</p>
  
  <p>Can someone help me or give me some ideas?</p>
  
  <p>I need only access the webcam with JavaScript and sorry for my English, I'm using Google translator.</p>
  
  <p>I can't use tag '&lt; video >'</p>