求高手帮忙看看这段JS为什么循环第二次的时候会出错。。。
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文挡</title>
<style type="text/css">
body {text-align:center}
td {font-size: 12px;text-align:center}
</style>
</head>
<body>
<div id=makewing>
<script language=JavaScript>
marqueesHeight=60;
stopscroll=false;
with(makewing){
style.width=0;
style.height=marqueesHeight;
style.overflowX="visible";
style.overflowY="hidden";
noWrap=true;
onmouseover=new Function("stopscroll=true");
onmouseout=new Function("stopscroll=false");
}
preTop=0; currentTop=marqueesHeight; stoptime=0;
makewing.innerHTML+=makewing.innerHTML;
function init_srolltext(){
makewing.scrollTop=0;
setInterval("scrollUp()",1);
}init_srolltext();
function scrollUp(){
if(stopscroll==true) return;
currentTop+=1;
if(currentTop==marqueesHeight+1)
{
stoptime+=1;
currentTop-=1;
if(stoptime==50)
{
currentTop=0;
stoptime=0;
}
}
else {
preTop=makewing.scrollTop;
makewing.scrollTop+=1;
if(preTop==makewing.scrollTop){
makewing.scrollTop=marqueesHeight;
makewing.scrollTop+=1;
}
}
}
init_srolltext();
</script>
<table width="778" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="60" bgcolor="#66CCFF">1</td>
</tr>
<tr>
<td height="60" bgcolor="#FFCC66">2</td>
</tr>
<tr>
<td height="60" bgcolor="#99CC66">3</td>
</tr>
<tr>
<td height="60" bgcolor="#66CCFF">4</td>
</tr>
<tr>
<td height="60" bgcolor="#FFCC66">5</td>
</tr>
<tr>
<td height="60" bgcolor="#99CC66">6</td>
</tr>
</table></div><br><br>
</body>
</html> |
发表于 2008-10-21 15:53
| 