JavaScript实现广告的关闭与显示效果实例

<code class="language-html"><script language="javascript">
  < !--
  function display() {
    if (googlead.style.visibility == 'visible') {
      googlead.style.visibility = 'hidden';
      document.getElementById('words').innerHTML = '关闭';
      return true;
    } else {
      googlead.style.visibility = 'visible';
      document.getElementById('words').innerHTML = '显示';
      return false;
    }
  }
  //--> 
  
</script></code>

<code class="language-html"><div id="googlead" style="margin-bottom:5px;width:728px;height:90px;float:left;visibility:visible">
  换客网广告...
</div>
<div id="myid">
  <span id="words" onclick="return display()">
    关闭
  </span>
</div></code>