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JavaScript滚动新闻类

 2009-06-30 05:12:00 来源:WEB开发网   
核心提示:程序代码<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html

程序代码
<!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=utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<title>滚动新闻类 - 51js.com - biyuan</title>
<style type="text/CSS">
body {
   text-align:center;
}
td {
   font-size:12px;
   line-height:20px;
   text-align:left;
}
.marquee {
   width:100%;
   height:100%;
   overflow:hidden;
}
.m {
   height:20px;
}
.m2 {
   height:90px;
}
</style>
</head>
<body>
<table border='1'>
   <tr>
     <td height='20' width='250'><div id='marquee1' class='marquee m'></div></td>
     <td height='20' width='300'><div id='marquee2' class='marquee m'></div></td>
   </tr>
   <tr>
     <td height='99' colspan='2'>基本上够用了吧!</td>
   </tr>
   <tr>
     <td height='90' colspan='2'><div id='marquee3' class='marquee m2'></div></td>
   </tr>
</table>
<script language="javaScript">
function BYMarquee(){
   this.Content = [];   //显示内容
   this.Speed = 20;   //上移速度
   this.Object = {};   //http://www.cncms.com  marquee容器对象
   this.Pause = true;   //是否停留
   this.Start = function(){
     var o = this.Object;
     var Pause = this.Pause;
     var Stop = false;
     var Stop2 = false;
     o.onmouSEOver = function(){
       Stop = Stop2 = true;
     }
     o.onmouseout = function(){
       Stop = Stop2 = false;
     }
     var BodyHtml = [];
     for(var i in this.Content){
       BodyHtml.push("<a href=\"" + this.Content[i].link + "\">" + this.Content[i].text + "</a>");
     }
     var Dv = document.createElement("div");
     Dv.innerHTML = BodyHtml.join("<br />");
     o.appendChild(Dv);
     var DvHeight = Dv.offsetHeight;
     while(Dv.offsetHeight /2 < o.offsetHeight){
       Dv.innerHTML += "<br />" + Dv.innerHTML;
     }
     Dv.innerHTML += "<br />" + Dv.innerHTML;
     setInterval(function(){
       if(!Stop){
         o.scrollTop ++;
         if(o.scrollTop == o.scrollHeight - o.offsetHeight){
           o.scrollTop = DvHeight - o.offsetHeight;
         }
         if(Pause){
           if(o.scrollTop % o.offsetHeight == 0){
             Stop = true;
             setTimeout(function(){
               Stop = Stop2;
             }, 3000);
           }
         }
       }
     }, this.Speed);
   }
}
//实例1
var marquee1 = new BYMarquee();
marquee1.Content = [
   {link : '#', text : '英法国防部证实两国核潜艇相撞'},
   {link : '#', text : '中国赴欧采购清单敲定 涉及金额150亿元'}
];
marquee1.Object = document.getElementById('marquee1');
marquee1.Start();
//实例2
var marquee2 = new BYMarquee();
marquee2.Content = [
   {link : '#', text : '剑仙李横握锋利嚣张的地铜剑,左右晃动'},
   {link : '#', text : '你的奴隶【剑仙李】奋起反抗,被你狠狠地教训了一顿!'},
   {link : '#', text : '我的奴隶 Su.新武将 在奴隶市场输给了 金光灿烂'}
];
marquee2.Speed = 10;
marquee2.Object = document.getElementById('marquee2');
marquee2.Start();
//实例3
var marquee3 = new BYMarquee();
marquee3.Content = [
   {link : '#', text : '关于封装的方法之间调用的问题求助'},
   {link : '#', text : '如何用Javascript来删除浏览器的历史记录?'},
   {link : '#', text : '请高手帮忙破解一段代码'}
];
marquee3.Speed = 50;
marquee3.Pause = false;
marquee3.Object = document.getElementById('marquee3');
marquee3.Start();

//销毁
marquee1 = marquee2 = marquee3 = null;
</script>
</body>
</html>

Tags:JavaScript 滚动 新闻

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