title: regex javascript supply valid url image
body: <p>I need a regex for valid url image,
  example: <a href="http://domain.something.jpg" rel="nofollow">http://domain.something.jpg</a></p>
  
  <p>protocol: http,https,ftp
  estension: jpg,png,gif,bmp</p>
  
  <p>Can you help me please?</p>