var image_dir="http://www.lachwatch.de/wp-content/themes/lachwatch/js/images";

function add_tool(icon, name, url) {
  document.write('<span class="socialAddButton" id="socialAddButton-' + icon + '"><a href="' + url + '" title="Auf ' + name +' teilen" target="_blank"><img src="' + image_dir + '/' + icon + '.png" id="social" alt="' + name + ' icon" /></a></span> ');
}

function add_all() {
  var title = encodeURIComponent(document.title);
  var url = encodeURIComponent(document.URL);

  add_tool('facebook', 'Facebook', 'http://www.facebook.com/sharer.php?u=' + url + '&amp;t=' + title);
  add_tool('twitter', 'Twitter', 'http://twitter.com/share?url=' + url + '&amp;title=' + title);
  add_tool('studivz', 'Studivz oder Sch&uuml;lerVZ', 'http://www.schuelervz.net/Suggest/Selection/?u=' + url + '&amp;title=' + title);
}

add_all();