I need to hardcode those of the values of the checkboxes which are enabled/disabled, depending on the selected option value. I was trying to do something like this:

```js
$("#Units").on("change", function () {
  if ($(this).val() !== "Finance") {
    $(".dissable").val("3").prop("disabled", true); 
    $(".dissable").val("4").prop("disabled", true); 
  } else {
    $(".dissable").val("3").prop("disabled", false);
    $(".dissable").val("4").prop("disabled", false);
  }
}).trigger('change');
```

```html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<select id="Units">
  <option value="Marketing" > Marketing </option>
  <option value="Finance" > Finance </option>
  <option value="Operations" > Operations </option>
</select>

<input type="checkbox" class="dissable" onclick="check();" value="1"> chbx1
<input type="checkbox" class="dissable" onclick="check();" value="2"> chbx2
<input type="checkbox" class="dissable" onclick="check();" value="3"> chbx3
<input type="checkbox" class="dissable" onclick="check();" value="4"> chbx4
```

But no desired effect, which is supposed to be like this:

* When I choose an option other then "Finance", checkbox no. 3 and 4 are disabled.
* For "Finance", all checkboxes are enabled.

I need to do this based on the checkbox values, not only class.