social media (share) functions

socialmedia.js

    function shareFacebook(title, summary, url, image) {
        url = ['https://www.facebook.com/sharer/sharer.php?s=100&p[summary]=', encodeURI(summary), '&p[title]=', encodeURI(title), '&p[url]=', encodeURI(url), '&p[images][0]=', encodeURI(image)];
        window.open(url.join(''), 'facebook', 'height=300,width=600');
    }

    function shareFacebookFBui(options, callbackShare) {
        // http://developers.facebook.com/docs/reference/dialogs/feed/
        var defaults = {
            method: 'feed',
            link: 'https://developers.facebook.com/docs/reference/dialogs/',
            picture: 'http://fbrell.com/f8.jpg',
            name: 'Facebook Dialogs'
        };
        /* merge defaults and options, without modifying defaults */
        var obj = $.extend({}, defaults, options);

        FB.ui(obj, callbackShare);
    }

    function shareTwitter (text,  url) {
        url = ['http://twitter.com/share?text=', encodeURI(text), '&url=', encodeURI(url)];
        window.open(url.join(''), 'twitter', 'height=300,width=600');
    }