title: jquery/css blinking start and stop on demand
body: <p>my application is heavily dependent on signalr for real time info. requirement is when an event1 from signalr is detected blink a div  and then on event 2 stop blinking.</p>
  
  <p>i have implement using fadein/fadeout but getting problems like, very high memory usage and also fadein/fadeout continue to happen even after class i removed.</p>
  
  <pre><code>function blinkcard() {
                  $('.blink').fadeOut(500);
                  $('.blink').fadeIn(500);
              }
              setInterval(blinkcard, 1000);
  </code></pre>