关于如何定时打开和关闭新窗口

close()语句最好放在bb.htm的最后一行，这样才能保证打开后的窗口能运行到最后一条语句

<script language="Javascript">
setInterval("var meizz = window.open('bb.htm');meizz.close();", 2000);
</script>
<html><head>
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新建网页 1</title>
<script language="javascript">
var speed = 2000;
function bb() {
for(i=1;i<40;i++){
  a = window.open("test.html");
  a.close();
    }
}
</script>
</head><body onload="setTimeout('bb()',2000)"></body></html>
<html><head>
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>新建网页 1</title>
<script language="javascript">
var speed = 200,i=1,a=null;
function bb() {
    if(++i<40)setTimeout('bb()',speed);
    try{a.close();}catch(e){}//先关闭原来的
    a = window.open("test.html");
}
</script>
</head><body onload="setTimeout('bb()',speed)"></body></html>
打开关闭 N 次以后自动停止的写法：<script language="Javascript">
var i=0;
var mm = setInterval("var meizz = window.open('bb.htm');meizz.close(); i++; if(i>40)clearInterval(mm)", 2000);
</script>
<script language="Javascript">
var i=0;
var mm = setInterval("meizz = window.open('bb.htm');setTimeout('meizz.close()', 500); i++; if(i>40)clearInterval(mm)", 2000);
</script>