Add more sharing options for carpoodle event signup, incl. Twitter, email, etc. Also popup in appropriate_sized window

[AaronHarris]

[AaronHarris]

Facebook: http://www.daddydesign.com/wordpress/how-to-create-a-custom-facebook-share-button-for-your-iframe-tab/
Twitter: http://thechangelog.com/tweet-button-generate-tweet-buttons-http-twitter-com-twe/