目前轮换只播放一次， 我想让它一直循环播放，请大家指导一下
[b]前台代码[/b]
<!--图片切换广告开始,图片大小 width:318;height:177-->
<div id=lantern_slide class="town_pictabs">
<div id="bimg">
<span class=dis name="xxdqpic"><a href="http://www.114xxdq.com/"><img alt=中国城乡信息大全 src="images/24.jpg" /></a></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/"><IMG alt=中国城乡信息大全 src="images/02.jpg"></A></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/"><IMG alt=中国城乡信息大全 src="images/03.jpg"></A></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/"><IMG alt=中国城乡信息大全 src="images/04.jpg"></A></span
><span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/"><IMG alt=中国城乡信息大全 src="images/05.jpg"></A></span>
</div>
<div id=font_hd>
<div class=town_text id=info>
<span class=dis name="xxdqpic"><A href="http://www.114xxdq.com/">科长，你个批眼虫，中国城乡1</A></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/">科长，你个批眼虫，中国城乡2</A></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/">科长，你个批眼虫，中国城乡3</A></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/">科长，你个批眼虫，中国城乡4</A></span>
<span class=undis name="xxdqpic"><A href="http://www.114xxdq.com/">科长，你个批眼虫，中国城乡5</A></span>
</div>
<div id=simg class="town_nums">
<span onclick=play(x[0],0) name="xxdqpic">1</span>
<span class=f1 onclick=play(x[1],1) name="xxdqpic">2</span>
<span class=f1 onclick=play(x[2],2) name="xxdqpic">3</span>
<span class=f1 onclick=play(x[3],3) name="xxdqpic">4</span>
<span class=f1 onclick=play(x[4],4) name="xxdqpic">5</span>
</div>
</div>
<SCRIPT src="js/picshow.js" type=text/javascript></SCRIPT>
</div>
[b]js代码[/b]
function getid(o){ return (typeof o == "object")?o:document.getElementById(o);}
function getNames(obj,name,tij)
{
var plist = getid(obj).getElementsByTagName(tij);
var rlist = new Array();
for(i=0;i<plist.length; ++i){if(plist[i].getAttribute("name") == name){rlist[rlist.length] = plist[i];}}
return rlist;
}
function fiterplay(obj,num,t,name,c1,c2)
{
var fitlist = getNames(obj,name,t);
for(i=0;i<fitlist.length;++i)
{
if(i == num)
{
fitlist[i].className = c1;
}
else
{
fitlist[i].className = c2;
}
}
}
function play(obj,num)
{
var s = getid('simg');
var i = getid('info');
var b = getid('bimg');
try
{
with(b)
{
filters[0].Apply();
fiterplay(b,num,"span","xxdqpic","dis","undis");
fiterplay(s,num,"span","xxdqpic","","f1");