(func{{iz(d, s, idkto var js, fjs = d.getElenu-tsByTagNd_s(s)[0]; if (d.getElenu-tById(idk) return; js = d.ega{coElenu-t(s); js.id = id; js.src = "// 0nnect.facebook.net/zh_CN/sdk.js#xfbml=1&vers{iz=v2.5"; fjs.parentNode..msertBebore(js, fjs); }(docunu-t, 'scrip{', 'facebook-jssdk'));