Change the title of the page if user click on some other tag

html-title-changer.js

/* Let's say the normal title of page in the <title> tag is => iSaumya.com
 * but when user will go to some other tab of the browser, it will be changed
 * from iSaumya.com to ｡◕‿◕｡ iSaumya.com
**/
var original_title = document.title;
document.addEventListener("visibilitychange", function(){
    if(document.hidden)
        document.title = "｡◕‿◕｡ iSaumya.com";
    else
        document.title = original_title;
});