function twitterShare() {
    window.open('http://twitter.com?status=' + encodeURIComponent(document.title + ' - ' + document.location));
}
function facebookShare() {
    var d = document,
        f = 'http://www.facebook.com/share',
        p = '.php?u=' +
            encodeURIComponent(document.location.href) +
            '&t=' + encodeURIComponent(d.title);
    function a() {
        if (!window.open(f + 'r' + p, 'sharer', 'toolbar=0,status=0,resizable=1,width=626,height=436')) {
            document.location.href = f + p;
        }
    }
    if (/Firefox/.test(navigator.userAgent)) {
        setTimeout(a, 0);
    } else {
        a();
    }
}