依赖于脚本支持的应用程序

<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Example:Replacing noscript</title>
  <script type="text/javascript">
  function noscript()
  {
      if(!document.getElementById||!document.createTextNode){return;}
      var noJSmsg=document.getElementById('noscripting');
      if(!noJSmsg){return;}
      var headline='Browser test succeeded';
      replaceMessage='We tested if your browser is capable of ';
      replaceMessage+='supporting the application,and all checked out fine.';
      replaceMessage+='Please proceed by activating the following link.';
      var linkMessage='Proceed to application.';
      var head=document.createElement('h1');
      head.appendChild(document.createTextNode(headline));
      noJSmsg.parentNode.insertBefore(head,noJSmsg);
      var infoPara=document.createElement('p');
      infoPara.appendChild(document.createTextNode(replaceMessage));
      noJSmsg.parentNode.insertBefore(infoPara,noJSmsg);
      var linkPara=document.createElement('p');
      var appLink=document.createElement('a');
      appLink.setAttribute('href','application.aspx');
      appLink.appendChild(document.createTextNode(linkMessage));
      linkPara.appendChild(appLink);
      noJSmsg.parentNode.replaceChild(linkPara,noJSmsg);
  }
  window.onload=noscript;
  </script>
</head>
<body>
  <p id="noscripting">
  We are sorry,but this application needs JavaScript to be
  enabled to work.Please <a href="contact.html">contact us</a>
  if you cannot enable scripting and we will try to help you in
  other ways
  </p>
</body>
</html>

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原文地址:https://www.cnblogs.com/vonk/p/3979648.html