JSFiddle - React, Tailwind, and code Playground
by Michaël Vanbrabandt
HTML
<input type="radio" name="radioBtn" value="1">
<input type="radio" name="radioBtn" value="2" checked>
<input type="radio" name="radioBtn" value="3">
<input type="radio" name="radioBtn" value="4">
<a id="lnk1" href='addDefaultPoints.action?height=400&width=350&countryId='>Link 1</a>
<a id="lnk2" href='editCountryMap.action?height=550&width=750&keepThis=true&TB_iframe=true&id='>Link 2</a>
JavaScript
$(document).ready(function() {
var countryId = $('input[name=radioBtn]:checked').val();
$('a#lnk1').attr('href', $('a#lnk1').attr('href') + countryId);
$('a#lnk2').attr('href', $('a#lnk2').attr('href') + countryId);
});