Enable and Disable Input Fields on Selecting value from Dropdown

Dropdown Dependant <input> Field using jQuery



<select class="form-control" id='rilmavn' name="cntrilm-for" required="" disabled>

<option value="None">Select</option>

<option value="Asha Kiran">Asha Kiran</option>

<option value="Others">Others</option>

</select>

<script>

$('#rilmavn').change(function() {

if( $(this).val() == 'None') {

$('#cntrilm-ashakirans').prop( "disabled", true );

} else {       

$('#cntrilm-ashakirans').prop( "disabled", false );

}

});

</script>
<input class="form-control" type="text" value="" name="cntrilm-ashakirans" id="cntrilm-ashakirans" placeholder="No. of Asha Kirans/Others" disabled>