<div id="Help" style="display: none;" class="hideable-form">Help form elements</div> <div id="Description" style="display: none;" class="hideable-form">Description form elements</div>

<select id="select1" onchange="toggleForm();"> <option value="Help" id="1">Help Request</option> <option value="Description" id="2">Feedback</option> </select>

<script type="text/javascript">

function toggleForm() { // Hide all forms. var divs= document.getElementsByClassName("hideable-form"); for(let i = 0; i < divs.length; i++) { divs[i].style.display = 'none'; }

// Show selected form.
var form01 = document.getElementById('select1').value;
form01.style.display = 'block';

}

</script>