變換網頁標題文字

<title>變換網頁標題文字</title>
<script type="text/javascript" language="javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function(){
title_default = $("title").text() ;
show = "【NO.1】"+title_default ;
none = "【】"+title_default ;
i =0 ;
Flicker() ;
})

function Flicker () {
setInterval("Change()",1000)
}

function Change () {
if(i==0) {
$("title").text(show)
i = 1 ;
}else {
$("title").text(none)
  i = 0 ;
}
}
</script>