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Javascript Chinaz的不间断滚动新闻函数

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<!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">
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<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>精彩推荐</title>
<style type="text/css">
<!--
body{height:20px;line-height:20px;overflow:hidden;width:550px;margin:0 auto;font-size:14px;background:#F5FAFF;}
.sinTip {font-size:14px;}
.bbs {float:left;margin-right:10px;height:20px;line-height:20px;font-weight:bold;color:#c00;background:url(/images/news.png) no-repeat 10px 5px;padding-left:20px;}
#ullist2 {float:left;height:20px; overflow:hidden;line-height:20px;margin:0;padding:0;}
#ullist2 a{padding-left:15px;}
#ullist2 a, #ullist2 a:link, #ullist2 a:visited {color:#000;text-decoration: none;}
#ullist2 a:hover {color:#c00;}
-->
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<script type="text/javascript">
(function(ul, delay, speed, lineHeight) {
var slideBox = (typeof ul == 'string')?document.getElementById(ul):ul;
var delay = delay||1000;
var speed=speed||20;
var lineHeight = lineHeight||20;
var tid = null, pause = false;
var start = function() {
tid=setInterval(slide, speed);
}
var slide = function() {
if (pause) return;
slideBox.scrollTop += 2;
if ( slideBox.scrollTop % lineHeight == 0 ) {
clearInterval(tid);
slideBox.appendChild(slideBox.getElementsByTagName('li')[0]);
slideBox.scrollTop = 0;
setTimeout(start, delay);
}
}
slideBox.onmouseover=function(){pause=true;}
slideBox.onmouseout=function(){pause=false;}
setTimeout(start, delay);
})
( 'ullist2', 3000, 1, 20 );//停留时间,相对速度(越小越快),每次滚动多少,最好和Li的Line-height一致。
</script>;;;
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