禁止网页复制的代码

HTML代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>禁止网页复制的代码</title>

</head>

<body style="text-align:center">
<p> </p>
<p> </p>
<p>网页禁止右键、禁止查看源代码、禁止复制的代码，试试你的右键、ctrl+c和ctrl+c吧~
  <SCRIPT language=javascript type=text/javascript>
<!--
document.oncontextmenu=new Function('event.returnValue=false;');
document.onselectstart=new Function('event.returnValue=false;');
-->
  </SCRIPT>
</p>
<p>来源：<a href="http://www.blogwy.com/" target="_blank">王雨的博客</a>　感谢：<a href="http://www.bt720p.com" target="_blank">BT高清</a>
</body>
</html>