facebook_custom_share.js

// IN
var values = {
    "share_url": "http://dracoblue.net",
    "share_title": "dracoblue's page",
    "share_summary": "It's an awesome blog!",
    "share_image_url": "http://dracoblue.net/avatar/120x120.jpg"
};



var share_parts = [
   's=100',
   'p[url]=' + encodeURIComponent(values.share_url),
   'p[title]=' + encodeURIComponent(values.share_title),
   'p[summary]=' + encodeURIComponent(values.share_summary),
   'p[images][0]=' + encodeURIComponent(values.share_image_url)
];

return 'http://www.facebook.com/sharer.php?' + share_parts.join('&');