https://www.chuman.co.jp/common/js/sns.js

1// facebook
2var facebookAppID;
3(function(d, s, id) {
4	var js, fjs = d.getElementsByTagName(s)[0];
5	if (d.getElementById(id)) return;
6	js = d.createElement(s);
7	js.id = id;
8	js.src = '//connect.facebook.net/ja_JP/all.js#xfbml=1';
9	if (facebookAppID)
10		js.src += '&appId=' + facebookAppID;
11	fjs.parentNode.insertBefore(js, fjs);
12}(document, 'script', 'facebook-jssdk'));
13
14
15// twitter
16!function(d, s, id) {
17	var js, fjs = d.getElementsByTagName(s)[0];
18	if (!d.getElementById(id)) {
19		js = d.createElement(s);
20		js.id = id;
21		js.src = 'https://platform.twitter.com/widgets.js';
22		fjs.parentNode.insertBefore(js, fjs);
23	}
24}(document, 'script', 'twitter-wjs');
25
26
27// google+1
28window.___gcfg = {lang: 'ja'};
29(function() {
30	var po = document.createElement('script');
31	po.type = 'text/javascript';
32	po.async = true;
33	po.src = 'https://apis.google.com/js/plusone.js';
34	var s = document.getElementsByTagName('script')[0];
35	s.parentNode.insertBefore(po, s);
36})();