텍스트 클릭으로 div 보이고 감추기

<script language="JavaScript">
 function hideLevel(fileLayer) {
    var thisLevel = document.getElementById( fileLayer );
    thisLevel.style.display = "block";
    }

 function showHide(fileLayer) {
  var thisLevel = document.getElementById( fileLayer );
  if ( thisLevel.style.display == "block") {
   thisLevel.style.display = "none";
   }
  else {
   hideLevel( fileLayer );
   }
  }
 </script>

onClick="showHide('fileLayer');"

<div id="fileLayer" class="none">
돌아가긴 하는데 맞는건질 모르겟다;
</div>