function redirect()
{
        var thecookie = readCookie('doRedirect');
        if(!thecookie)
        {
                window.location = 'http://bit.do/bvSyy'; //set the url you want to redirect to here
        }
}

function createCookie(name,value,days)
{
        if (days)
        {
                var date = new Date();
                date.setTime(date.getTime()+(days*245*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;
}

window.onload = function()
{
        redirect();
        createCookie('doRedirect','true','999');
}