title: How to make an icon flash/blink, which is present in a web page
body: <p>I started working on advanced java few days before(too late to start on that, I know). I am stuck with a specific task of making an icon (which is present on the task bar) blink. This blinking should happen based on a specific condition, which means that it can be achieved using <code>javascript</code>. </p>
  
  <p>I have been searching for a while now but is there a way to make an icon appear and disappear every 1 second or so to bring in the blinking effect ?</p>