Makes browser tab blink with text

blink.js

var blinkTab = function(message) {
  var oldTitle = document.title,                                                           /* save original title */
      timeoutId,
      blink = function() { document.title = document.title == message ? ' ' : message; },  /* function to BLINK browser tab */
      clear = function() {                                                                 /* function to set title back to original */
        clearInterval(timeoutId);
        document.title = oldTitle;
        window.onmousemove = null;
        timeoutId = null;
      };
 
  if (!timeoutId) {
    timeoutId = setInterval(blink, 1000);
    window.onmousemove = clear;                                                            /* stop changing title on moving the mouse */
  }
};