JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<div class='show_hide_login'>click me</div>

<div id='fullpage'>fullpage</div>
<div id='loginbox'>loginbox</div>

CSS

#fullpage,#loginbox {
    display: none;
}

JavaScript

$(function() {
    $('.show_hide_login').toggle(

    function() {
        alert('show');
        $("div#fullpage").show();
        $("div#loginbox").show();
    }, function() {
        alert('hide');
        $("div#loginbox").hide();
        $("div#fullpage").hide();
    });

    $('.show_hide_login').toggle(

    function() {
        alert('show');
        $("div#fullpage").show();
        $("div#loginbox").show();
    }, function() {
        alert('hide');
        $("div#loginbox").hide();
        $("div#fullpage").hide();
    });
});