I need two drop down menu's that when "other is selected from either menu a text box appears to allow the user to type their answer.

I can create both drop down menu's and can get one of them to open a text box but I can't seem to get both to complete the same action. I have tried many options and can't get it to work. Can anyone please help.

Thank you

```
<html>
<head>

<script type="text/javascript">
window.onload = function() {
    var eSelect = document.getElementById('association');
    var optOtherReason = document.getElementById('association_detail');
    eSelect.onchange = function() {
        if(eSelect.selectedIndex === 5) {
            optOtherReason.style.display = 'block';
        } else {
            optOtherReason.style.display = 'none';
        }
    }
}
</script>
</head>
<body>
<p> 
     <label>Stakeholder association (How you are affiliated with EMWIN):</label>
     <select id = "association" name="association" >
     <option value="na">Select:</option>
     <option value="AR">Academic Research</option>
     <option value="EM">Emergency Management</option>
     <option value="EV">Equipment Vender</option>
     <option value="RB">Re-broadcast</option>
     <option value="Other">Other</option>
     </select>

     </p>
     <div id="association_detail" style="display: none;">
     <input id="namesignup" name="namesignup" required="required" type="text" placeholder="How you are affiliated with EMWIN" />
     </div>

     <p> 
     <label>Stakeholder association (How you are affiliated with EMWIN):</label>
     <select id = "select_use" name="select_use"  >
     <option value="na">Select:</option>
     <option value="sat">Satellite</option>
     <option value="int">Internet</option>
     <option value="vhf">VHF Radio Rebroadcast</option>
     <option value="Other">Other</option>
     </select>
     </p>
     <div id="Use" style="display: none;">

     <input id="namesignup" name="namesignup" required="required" type="text" placeholder="How you are affiliated with EMWIN" />
    </div>
    </body>
    </html>

```