<html>
<head>
<script language=javascript defer>
var str=document.body.innerHTML
re=/<\/?a/gi
document.body.innerHTML=str.replace(re,function(a){return (a.indexOf("\/")==-1)?"<reenooweb:link":"<\/reenooweb:link"})
alert(document.documentElement.outerHTML)
</script>
</head>
<body>
<a href="www.sina.com.cn">新浪</a>
</body>
</html>
<head>
<script language=javascript defer>
var str=document.body.innerHTML
re=/<\/?a/gi
document.body.innerHTML=str.replace(re,function(a){return (a.indexOf("\/")==-1)?"<reenooweb:link":"<\/reenooweb:link"})
alert(document.documentElement.outerHTML)
</script>
</head>
<body>
<a href="www.sina.com.cn">新浪</a>
</body>
</html>
function swap(event) {
var tag = event.srcElement;
}
<HTML xmlns:MyAjax>
...
<MyAjax:test></MyAjax:test>
<script>
var the = document.getElementsByTagName( "test" )
for( var i = 0 ; i < the.length ; i++ )
{
the[ i ].outerHTML = xxx ;
}
</script>
...
</HTML>