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关于符合WEB标准的滚动文字特效的实现方法

2009-10-03 04:26 639 查看

//横向滚动

var speed=10;

div2.innerHTML=div1.innerHTML;

function Marquee()

{

if(div2.offsetWidth-div.scrollLeft==div.offsetWidth)

{

div.scrollLeft=0;

}

else{

div.scrollLeft++;

}

}

var MyMar=setInterval(Marquee,speed)

div.onmouseover=function() {clearInterval(MyMar)}

div.onmouseout=function() {MyMar=setInterval(Marquee,speed)}

//纵向滚动

<style>
#demo{
OVERFLOW: hidden;
WIDTH: 100%;
HEIGHT: 112px
} #demo1{
OVERFLOW: hidden
}
</style>

var speed=60;

demo2.innerHTML=demo1.innerHTML

function Marquee()

{

if(demo2.offsetTop-demo.scrollTop<=0)

demo.scrollTop-=demo1.offsetHeight;

else

demo.scrollTop++;

}

var MyMar=setInterval(Marquee,speed)

demo.onmouseover=function() {clearInterval(MyMar)}

demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}

第一种方法：用javascript模拟marquee的做法。

<!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>热点新闻webjx.com</title>

<style type="text/css">



</style>

</head>

<body>

<h4>滚动新闻</h4>

<script language="JavaScript" type="text/javascript">

var marqueeContent=new Array();

marqueeContent[0]="<a href=http://xyq.163.com/news/2006/11/2-2-20061102170913.html target=_blank>用“梦幻密保”快速取回帐号密码</a>";

marqueeContent[1]="<a href=http://ekey.163.com/ target=_blank>网易将军令官方网站</a>";

marqueeContent[2]="<a href=http://xyq.163.com/download/wallpaper.htm target=_blank>最新壁纸下载</a>";

marqueeContent[3]="<a href=http://xyq.163.com/download/around.htm target=_blank>最新屏保下载</a>";

var marqueeInterval=new Array();

var marqueeId=0;

var marqueeDelay=2000;

var marqueeHeight=20;

function initMarquee() {

var str=marqueeContent[0];

document.write('<div id="marqueeBox" style="overflow:hidden;width:250px;height:'+marqueeHeight+'px" onmouseover="clearInterval(marqueeInterval[0])" onmouseout="marqueeInterval[0]=setInterval(\'startMarquee()\',marqueeDelay)"><div>'+str+'</div></div>');

marqueeId++;

marqueeInterval[0]=setInterval("startMarquee()",marqueeDelay);

}

function startMarquee() {

var str=marqueeContent[marqueeId];

marqueeId++;

if(marqueeId>=marqueeContent.length) marqueeId=0;

if(document.getElementById("marqueeBox").childNodes.length==1) {

var nextLine=document.createElement('DIV');

nextLine.innerHTML=str;

document.getElementById("marqueeBox").appendChild(nextLine);

}

else {

document.getElementById("marqueeBox").childNodes[0].innerHTML=str;

document.getElementById("marqueeBox").appendChild(document.getElementById("marqueeBox").childNodes[0]);

document.getElementById("marqueeBox").scrollTop=0;

}

clearInterval(marqueeInterval[1]);

marqueeInterval[1]=setInterval("scrollMarquee()",20);

}

function scrollMarquee() {

document.getElementById("marqueeBox").scrollTop++;

if(document.getElementById("marqueeBox").scrollTop%marqueeHeight==(marqueeHeight-1)){

clearInterval(marqueeInterval[1]);

}

}

initMarquee();

</script>

</body>

</html>

第二种方法：这个更强，能自动根据内容自动进行左右滚动，解决了宽度太小造成的截取问题。

<html>

<head>

<title> 网页文本SCROLL//webjx.com </title>

<style type="text/css">

#infozone{font-size:12px;color:#aa6;overflow:hidden;width:100px;height:20px;}

#infozone div{height:20px;line-height:20px;white-space:nowrap;overflow:hidden;}

</style>

<script type="text/javascript">

var tc;

window.onload=function(){

var o=document.getElementById('infozone');hscroll(o);

window.setInterval(function(){window.clearTimeout(tc);o.firstChild.style.marginLeft='0px';scrollup(o,20,0);},10000);

}

function scrollup(o,d,c){

if(d==c){

var t=o.firstChild.cloneNode(true);

o.removeChild(o.firstChild);o.appendChild(t);

t.style.marginTop=o.firstChild.style.marginTop='0px';

hscroll(o);

}

else{

ch=false;var s=3,c=c+s,l=(c>=d?c-d:0);

o.firstChild.style.marginTop=-c+l+'px';

window.setTimeout(function(){scrollup(o,d,c-l)},50);

}

}

function hscroll(o){

var w1=o.firstChild.offsetWidth,w2=o.offsetWidth;

if(w1<=w2)return;

tc=window.setTimeout(function(){hs(o,w1-w2,0,w1-w2)},3500);

}

function hs(o,d,c,p){

c++;var t=(c>0?-c:c);o.firstChild.style.marginLeft=t+'px';

if(c==d){if(d==0){tc=window.setTimeout(function(){hs(o,p,0,p)},2500);}else tc=window.setTimeout(function(){hs(o,0,-p,p)},3500);}

else tc=window.setTimeout(function(){hs(o,d,c,p)},5);

}

</script>

</head>

<body>

<div id="infozone"><div>温岚 - 屋顶(周杰伦对唱版)</div><div>范玮琪 - 那些花儿</div><div>张韶涵 - 娃娃</div><div>孙楠&韩红 - 美丽的神话</div></div>

</body>

</html>

第三种是最精简的，代码非常少。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

<TITLE> 网页文本定时变动的特效代码 </TITLE>

<META NAME="Generator" CONTENT="EditPlus">

<META NAME="Author" CONTENT="">

<META NAME="Keywords" CONTENT="">

<META NAME="Description" CONTENT="">

<style type="text/css">

#newslist{

background:#f7f7f7;border:1px solid silver;padding:1px;height:20px;line-height:20px;width:300px;

}

#contain{

font-size:12px;overflow:hidden;list-style:none;width:300px;height:20px;margin:0px;padding:0;

}

#contain li{

height:20px;line-height:20px;white-space:nowrap;overflow:hidden;

}

</style>

</HEAD>

<BODY>

<div id="newslist">

<ul id="contain">

<li><a href="http:/www.webjx.com">网页教学网webjx.com11111</a></li>

<li><a href="http:/www.webjx.com">网页教学网webjx.com00000</a></li>

<li><a href="http:/www.webjx.com">网页教学网webjx.com22222</a></li>

<li><a href="http:/www.webjx.com">网页教学网webjx.com33333</a></li>

<li><a href="http:/www.webjx.com">网页教学网webjx.com44444</a></li>

</ul>

</div>

<SCRIPT LANGUAGE="JavaScript">

function xx(){

var container=document.getElementById("contain");

container.appendChild(container.firstChild);

}

setInterval("xx()",3000);

</SCRIPT>

</BODY>

</HTML>

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