function openfacebookwindow (url) {
 fenster = window.open(url, "fenster1", "width=600,height=400,status=yes,scrollbars=no,resizable=yes");
 fenster.focus();
}

//Tweet this
var twitter_url= "http://twitter.com/home/?status=Schaut+euch+das+an:+" +document.URL;
var tweet_this="<div class='tweet_this'><a href="+ twitter_url +" target='_blank' alt='tweet_this'><img  src='http://www.white-solutions.de/blogbox/templates/fz/images/btn_tweet_long.png'></a></div>";
var facebook_url= "http://www.facebook.com/share.php?u=" +document.URL;
var share_on="<div class='share_on'><a href='javascript:openfacebookwindow(facebook_url);'><img  src='http://www.white-solutions.de/blogbox/templates/fz/images/btn_share_long.png'></a></div>";
document.write(tweet_this, share_on);