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<body>
<p id="banner"></p>
</body>
<script>
var str = "这是一个在线拍卖的网站，请尽情血拼吧！";
var seq = 0;
function scroll() {
msg = str.substring(0, seq+1);
banner.innerHTML = msg;
seq++;
if (seq >= str.length) {
seq = 0;
}
}
window.onload=function(){
setInterval("scroll()",500);
}
</script>
<body>
<p id="news" style="display:none">最新消息...</p>
</body>
<script>
function show() {
document.getElementById(‘news‘).style.display = "";
setTimeout("hide()",500);
}
function hide() {
document.getElementById(‘news‘).style.display = "none";
setTimeout("show()",500);
}
window.onload=function(){
show();
}
</script>
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原文地址：http://www.cnblogs.com/lss-bk/p/5743040.html
