由下往上无间隙滚动文字
由上往下无间隙滚动文字
由上往下无间隙滚动文字
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body>
<DIV id="scrollobj" style="white-space:nowrap;overflow:hidden; height:50px;"><span>这里是要滚动的内容</span>
</DIV>
<script language="javascript" type="text/javascript">
<!--
function scroll(obj) {
var tmp = (obj.scrollTop)++;
//当滚动到达顶端时
if (obj.scrollTop==tmp) obj.innerHTML +=obj.innerHTML;
//当滚动到初始内容的高度时，回到最顶端
if (obj.scrollTop>=obj.firstChild.offsetHeight) obj.scrollTop=0;
}
setInterval("scroll(document.getElementById('scrollobj'))",20);
//-->
</script>
</body>
</html>