镇海银泰城是否会烂尾:关于网页代码的一个问题，恳请各位高手指教！！！！

<!--//
var version = "other"
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) version = "n3";
else if (browserName == "Netscape" && browserVer < 3) version = "n2";
else if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version = "e4";
else if (browserName == "Microsoft Internet Explorer" && browserVer < 4) version = "e3";
function marquee1()
{
if (version == "e4")
{
document.write("<marquee behavior=scroll direction=up width=150 height=190 scrollamount=1 scrolldelay=60 onmouseover='this.stop()' onmouseout='this.start()'>")
}
}
function marquee2()
{
if (version == "e4")
{
document.write("</marquee>")
}
}
//-->
</script>
<script language='JavaScript' type="text/javascript">

marquee1();</script>
用firework做的网页，不知道从那来得一段代码？