function loadJSON(url, queryString, type)
{
        var headId = document.getElementsByTagName("head")[0];
        if (typeof(type) == "undefined") type = 'script';

        url += (url.indexOf('?') >= 0) ? "&" : "?";
        url += "noCacheIE=" + (new Date()).getTime() + "&" + queryString;

        if (type == 'link') {
            var link = document.createElement('link');
            link.rel = 'alternate';
            link.type = 'application/rss+xml';
            link.href = url;
        } else {
            var link = document.createElement('script');
            link.type = 'text/javascript';
            link.src = url;
        }
        headId.appendChild(link);
}