js設置html區域隱藏和顯示

if(message != "指派")
 {
    document.getElementById("appoint").style.display="none";

 }else{
    document.getElementById("appoint").style.display="inline";
 }

上面是，javascript代碼，下面是html代碼：

<!-- 選擇指派人-->
<div id="appoint">

<label>指派給：</label>
<select name="assignedTo" id="assignedTo">
　　<option value="未選擇" selected >選擇指派人</option>
         @foreach($userList as $user)
                  <option value="{{$user->name}}">{{$user->name}}</option>
         @endforeach
</select>
</div>

轉載：http://www.cnblogs.com/unpolishedgem/p/3247098.html