7.可以一条一条的显示文字，也可以点击展开全部文字
<style>
<!--
#listbutton{
border:1px solid #4B4B4B;
background-color:#F3F3F3;
width:50px;
height:12px;
font: normal 11px Arial;
text-align:center;
cursor:pointer;cursor:hand;
}
.expandhighlight, .expandhighlight a{
color:red;
}
-->
</style>
<script language="JavaScript1.2">
//configure tickercontents[] to set the messges you wish be displayed (HTML codes accepted)
var tickercontents=new Array()
tickercontents[0]='用数据广播方式，将信息内容完整镜像到PC机中'
tickercontents[1]='数据广播作为广播电视系统的新一代业务。'
tickercontents[2]='重新构思文化共享结构成为信息产业追求的目标之一。'
//configure the below 2 variables to set the width/background color of the ticker
var tickerwidth='475'
var tickerbgcolor='#DDDDFF'
//configure the below variable to determine the delay between ticking of messages (in
miliseconds)
var tickdelay=3000
////Do not edit pass this line////////////////
var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1
var ns4=document.layers
var currentmessage=0
var tickercontentstotal=''
function changetickercontent(){
if (ns4){
tickerobj.document.tickernssub.document.write('<b><a href="#" onClick="return expandlist
(event)">显/隐</a></b> | '+tickercontents[currentmessage])
tickerobj.document.tickernssub.document.close()
}
else if (ie4||ns6){
tickerobj.innerHTML=tickercontents[currentmessage]
previousmessage=(currentmessage==0)? tickercontents.length-1 : currentmessage-1
tickerexpand_item=ns6? document.getElementById("expand"+currentmessage) : eval
("expand"+currentmessage)
tickerexpand_previousitem=ns6? document.getElementById("expand"+previousmessage) : eval
("expand"+previousmessage)
tickerexpand_previousitem.className=""
tickerexpand_item.className="expandhighlight"
}
currentmessage=(currentmessage==tickercontents.length-1)? 0 : currentmessage+1
setTimeout("changetickercontent()",tickdelay)
}
function start_ticking(){
if (ns4) document.tickernsmain.visibility="show"
tickerobj=ie4? tickerlist : ns6? document.getElementById("tickerlist") : ns4?
document.tickernsmain : ""
tickerexpandobj=ie4? tickerexpand : ns6? document.getElementById("tickerexpand") : ns4?
