a.addthis_button_facebook div { background-image:url('images/social/facebook.jpg'); }
a.addthis_button_twitter div { background-image:url('images/social/twitter.jpg'); }
a.addthis_button_gmail div { background-image:url('images/social/gmail.jpg'); }
a.addthis_button_email div { background-image:url('images/social/email.jpg'); }
a.addthis_button_stumbleupon div { background-image:url('images/social/su.jpg'); }
a.addthis_button_digg div { background-image:url('images/social/digg.jpg'); }
a.addthis_button_hotmail div { background-image:url('images/social/msn.jpg'); }
a.addthis_button_yahoomail div { background-image:url('images/social/yahoo.jpg'); }

a.addthis_button_facebook:hover div { background-image:url('images/social/facebook2.jpg'); }
a.addthis_button_twitter:hover div { background-image:url('images/social/twitter2.jpg'); }
a.addthis_button_gmail:hover div { background-image:url('images/social/gmail2.jpg'); }
a.addthis_button_email:hover div { background-image:url('images/social/email2.jpg'); }
a.addthis_button_stumbleupon:hover div { background-image:url('images/social/su2.jpg'); }
a.addthis_button_digg:hover div { background-image:url('images/social/digg2.jpg'); }
a.addthis_button_hotmail:hover div { background-image:url('images/social/msn2.jpg'); }
a.addthis_button_yahoomail:hover div { background-image:url('images/social/yahoo2.jpg'); }