JSFiddle - React, Tailwind, and code Playground
HTML
<select id="tracker" name="tracker">
<option></option>
<option value="lostfilm.tv">lostfilm.tv</option>
<option value="novafilm.tv">novafilm.tv</option>
</select>
<div id="changedField"></div>
JavaScript
$(document).ready(function(){
$("#tracker").change(function() {
var tracker = document.getElementById("tracker").value;
if (tracker == 'lostfilm.tv')
$('#changedField').empty().append('<span class="quality"><input type="radio" name="hd" value="0"> SD качество<br/><input type="radio" name="hd" value="1"> HD качество<br/><input type="radio" name="hd" value="2"> HD MP4</span>');
if (tracker == 'novafilm.tv')
$('#changedField').empty().append('<input type="checkbox" name="hd"> HD качество</label>');
});
});