Как сделать так, чтобы div-блок исчез после авторизации на сайте?

<div id="uidLogForm" align="center"><a href="javascript://" onclick="window.open('https://login.uid.me/?site=etransformers&ref='+escape(location.protocol + '//' + ('transformers.ucoz.net' || location.hostname) + location.pathname + ((location.hash ? ( location.search ? location.search + '&' : '?' ) + 'rnd=' + Date.now() + location.hash : ( location.search || '' )))),'uidLoginWnd','width=580,height=450,resizable=yes,titlebar=yes');return false;" class="login-with uid" title="Войти через uID" rel="nofollow"><i></i></a><a href="javascript://" onclick="return uSocialLogin('vkontakte');" class="login-with vkontakte" title="Войти через ВКонтакте" rel="nofollow"><i></i></a><a href="javascript://" onclick="return uSocialLogin('ok');" class="login-with ok" title="Войти через Однокласcники" rel="nofollow"><i></i></a><a href="javascript://" onclick="return uSocialLogin('facebook');" class="login-with facebook" title="Войти через Facebook" rel="nofollow"><i></i></a><a href="javascript://" onclick="return uSocialLogin('twitter');" class="login-with twitter" title="Войти через Twitter" rel="nofollow"><i></i></a></div>
 
<style>
a.login-with { display:inline-block; text-decoration:none; position:relative; width:auto; margin:0.2vw; font-size:9pt; outline:none; user-select:none; -moz-user-select:none; -webkit-user-select:none; -ms-user-select:none; -o-user-select:none }
a.login-with:hover { background:none; text-decoration:none }
a.login-with b { font-weight:normal }
a.login-with i { display:inline-block;cursor:pointer;vertical-align:middle;width:2vw; height:2vw; background-color:#fff; background-position: center center; background-repeat: no-repeat; background-size:70% 55%; -webkit-transition: background-color .2s .01s ease-out, border-color .1s .01s ease-out;transition: background-color .2s .01s ease-out, border-color .1s .01s ease-out;border: none;position: static;opacity: 1;border-radius: 16px;}
a.facebook i { background-image: url(/.s/img/icon/social/fb.svg); border:0.15vw solid #3c599f }
a.facebook:hover i {background-image: url(/.s/img/icon/social/fb-w.svg); background-color:#3c599f }
a.vkontakte i { background-image: url(/.s/img/icon/social/vk.svg); border:0.15vw solid #2f6caa }
a.vkontakte:hover i { background-image: url(/.s/img/icon/social/vk-w.svg); background-color:#2f6caa }
a.yandex i { background-image: url(/.s/img/icon/social/ya.svg); border:0.15vw solid #dc4c39 }
a.yandex:hover i { background-image: url(/.s/img/icon/social/ya-w.svg); background-color:#dc4c39 }
a.google i { background-image: url(/.s/img/icon/social/gp.svg); border:0.15vw solid #505050 }
a.google:hover i { background-image: url(/.s/img/icon/social/gp-w.svg); background-color:#505050 }
a.twitter i { background-image: url(/.s/img/icon/social/tw.svg); border:0.15vw solid #00b3ec }
a.twitter:hover i { background-image: url(/.s/img/icon/social/tw-w.svg); background-color:#00b3ec }
a.ok i { background-image: url(/.s/img/icon/social/ok.svg); border:0.15vw solid #ed812b }
a.ok:hover i { background-image: url(/.s/img/icon/social/ok-w.svg); background-color:#ed812b }
a.uid i { background-image: url(/.s/img/icon/social/u.svg); border:0.15vw solid #3498db }
a.uid:hover i { background-image: url(/.s/img/icon/social/u-w.svg); background-color:#3498db }
a.local i { background-image: url(/.s/img/icon/social/l.svg); border:0.15vw solid #6c6c6c }
a.local:hover i { background-image: url(/.s/img/icon/social/l-w.svg); background-color:#6c6c6c }
</style>