发布 2010-06-18 更新 2012-06-22 文章前端

纯JS无间隙文字向上滚动代码

收藏备用吧，小效果还会经常用到的

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>体验盒子－ UEDBOX.COM</title>

</head>

<body>

<ul>

<li><a href="">◇ 无间隙文字向上滚动</a></li>

</ul>

</div>

var textDiv = document.getElementById("rollText");

var textList = textDiv.getElementsByTagName("a");

if(textList.length > 2){

var textDat = textDiv.innerHTML;

var br = textDat.toLowerCase().indexOf("<li",textDat.toLowerCase().indexOf("<li")+3);

textDiv.innerHTML = textDat+textDat+textDat.substr(0,br);

textDiv.style.cssText = "position:absolute; top:0";

var textDatH = textDiv.offsetHeight;MaxRoll();

}

var minTime,maxTime,divTop,newTop=0;

function MinRoll(){

newTop++;

if(newTop<=divTop+80){

textDiv.style.top = "-" + newTop + "px";

}else{

clearInterval(minTime);

maxTime = setTimeout(MaxRoll,100);

}

function MaxRoll(){

divTop = Math.abs(parseInt(textDiv.style.top));

if(divTop>=0 && divTop<textDatH-80){

minTime = setInterval(MinRoll,80);

}else{

textDiv.style.top = 0;divTop = 0;newTop=0;MaxRoll();

}

</script>

</body>

</html>

精选置顶