A little bit of Javascript to change the title of a page after loosing focus. For example, switching to another window or tab.

Change Title Tag

// Change Title Tag on Blur
var titleCurrent = document.title;
var titleList = [
    "Hey, over here.",
    "Don't you forget about me",
    "Please come back"
];

var titleIndex = "";
function titleRandom(){
  var index = Math.floor(Math.random() * titleList.length);
  titleIndex = titleList[index];
  document.title = titleIndex;
}
window.onblur = function () { titleRandom(); };
window.onfocus = function () { document.title = titleCurrent; };