JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://code.jquery.com/jquery-2.2.4.js"></script>
<h2>Page 1</h2>
<p id="seeCookie">seeCookie</p>
<input type="radio" id="A03" name="Opciones" value="3" /><label for="A03">Three</label>
<input type="radio" id="A04" name="Opciones" value="4"/><label for="A04">Four</label>
<input type="radio" id="A05" name="Opciones" value=""/><label for="A05">None</label>
<p>
<a href="https://jsfiddle.net/xeb5hq1d/1/" target="_parent">Reload</a></p>
JavaScript
$(document).ready(function(){
var $Status = "A0"+document.cookie[0];
document.getElementById($Status).checked = true;
document.getElementById("seeCookie").innerHTML=$Status;
$('input').on('click', function() {
$Opcion=$('input[name=Opciones]:checked', '').val();
document.cookie = $Opcion;
var $Status = "A0"+document.cookie;
document.getElementById("seeCookie").innerHTML=$Status;
});
});