<!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>
<title> New Document </title>
<script type="text/javascript">
<!--
// 讓瀏覽器出現滾動條
for(var i = 0; i < 100; i++) {
document.write("<br/>");
}
var topValue = 0,// 上次滾動條到頂部的距離
interval = null;// 定時器
document.onscroll = function() {
if(interval == null)// 未發起時,啟動定時器,1秒1執行
interval = setInterval("test()", 1000);
topValue = document.documentElement.scrollTop || document.body.scrollTop;;
}
function test() {
// 判斷此刻到頂部的距離是否和1秒前的距離相等
var t1 = document.documentElement.scrollTop || document.body.scrollTop;
if( t1 == topValue) {
alert("scroll is stopping!");
clearInterval(interval);
interval = null;
}
}
//-->
</script>
</head>
<body>
</body>
</html>