Flickr =
{
    rIdx: 0,
    request: function(url, params, callback) 
    {
        params['jsoncallback'] = 'Flickr.fcb' + Flickr.rIdx;
        Flickr['fcb' + (Flickr.rIdx++)] = callback;
        var p = "";
        for (var i in params) {
            if (p != "")
                p += "&";
            p += escape(i) + "=" + escape(params[i]);
        }
        var s = document.createElement('script');
        s.src = url + "?" + p;
        s.type = "text/javascript";
        document.getElementsByTagName('head')[0].appendChild(s);
    }
};