share over social networks

Share = {
    vkontakte: function(purl, ptitle, text) {
        url  = 'http://vkontakte.ru/share.php?';
        url += 'url='          + encodeURIComponent(purl);
        url += '&title='       + encodeURIComponent(ptitle);
        url += '&description=' + encodeURIComponent(text);
        Share.popup(url);
    },
    odnoklassniki: function(purl, text) {
        url  = 'http://www.odnoklassniki.ru/dk?st.cmd=addShare&st.s=1';
        url += '&st.comments=' + encodeURIComponent(text);
        url += '&st._surl='    + encodeURIComponent(purl);
        Share.popup(url);
    },
    facebook: function(purl, ptitle, pimg, text) {
        url  = 'http://www.facebook.com/sharer.php?s=100';
        url += '&p[title]='     + encodeURIComponent(ptitle);
        url += '&p[summary]='   + encodeURIComponent(text);
        url += '&p[url]='       + encodeURIComponent(purl);
        url += '&p[images][0]=' + encodeURIComponent(pimg);
        Share.popup(url);
    },
    twitter: function(purl, ptitle) {
        url  = 'http://twitter.com/share?';
        url += 'text='      + encodeURIComponent(ptitle);
        url += '&url='      + encodeURIComponent(purl);
        url += '&counturl=' + encodeURIComponent(purl);
        Share.popup(url);
    },
    mailru: function(purl, ptitle, pimg, text) {
        url  = 'http://connect.mail.ru/share?';
        url += 'url='          + encodeURIComponent(purl);
        url += '&title='       + encodeURIComponent(ptitle);
        url += '&description=' + encodeURIComponent(text);
        url += '&imageurl='    + encodeURIComponent(pimg);
        Share.popup(url)
    },
    googleplus: function(purl) {
        url = 'https://plus.google.com/share?';
        url += 'url='          + encodeURIComponent(purl);
        Share.popup(url)
    },

    popup: function(url) {
        window.open(url,'','toolbar=0,status=0,width=626,height=436');
    }
};

Share.facebook('https://gist.github.com/ambivalentno/449321207b1c7891fa41','funny gist','https://wannameet.s3.amazonaws.com/purchase_images/%D0%A4%D0%B8%D1%82%D0%BE2.jpg', '')