I am trying to make a "meet the staff" section that has hidden bios that display on click. Right now the div displays as it should, but only disappears when the original button is clicked again. I am needing some additional javascript to hide any opened divs when a different (or same) button is clicked. I don't know enough javascript to know what to try in order to make this happen. Thanks in advance!

HTML

```
<div id="lastname" class="toggle-div" style="display: none;">
     <div><p>bio</p>
     </div>
</div>

<button class="bio-button" onclick="myBiof()">Click for Bio</button>

```

Javascript

```
<script>
function myBiof() {
  var y = document.getElementById("lastname");
  if (y.style.display === "block") {
    y.style.display = "none";
  } else {
    y.style.display = "block";
  }
}

</script>

```