<input type='radio' name='radios' id='val1' value='val1' /> 1
<select name="sel2" id='sel2' disabled>
<option>Deity Name</option>
</select>
<input type='radio' name='radios' id='val2' value='val2' /> 2
<select name="sel1" id='sel1' disabled>
<option>Deity Name</option>
</select>
const radios = document.querySelectorAll('[name="radios"]');
const selects = Array.from(radios, n => n.nextElementSibling);
const onChange = e => selects.forEach(n => n.disabled = n !== e.target.nextElementSibling);
radios.forEach(n => n.addEventListener('change', onChange));