JavaScript获取HTML页面源代码

来自：http://www.cnblogs.com/luckbird/archive/2008/02/01/1061048.html

<a href="javascript:gets();">获取</a>
<textarea ></textarea>
<script language="javascript">
function gets()
{
    var t = document.getElementById("ttt");
    t.value = document.documentElement.outerHTML;
}

</script>