图层内文字渐隐定时滚动切换特效

看起来像是图层定时向上滚动切换效果，这种文字切换特效带渐隐显示效果，根据自己的需求来自定义即可。

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<script type="text/javascript" src="https://www.wuming.ren/ad/tc.js"></script>
<script type="text/javascript" src="https://www.wuming.ren/ad/a.js"></script>
<script language="JavaScript1.2">
var scroller_width=150
var scroller_height=115
var bgcolor='#E0EFD1'
var pause=3000 //SET PAUSE BETWEEN SLIDE (3000=3 seconds)
var scrollercontent=new Array()
//Define scroller contents. Extend or contract array as needed
scrollercontent[0]='武鸣人滚动一号<br /> <a href="https://www.wuming.ren">武鸣人网</a>,各种信息免费发布，资源共享合作共赢！11111'
scrollercontent[1]='武鸣人滚动二号<br /> <a href="https://www.wuming.ren">武鸣人网</a>,各种信息免费发布，资源共享合作共赢！22222'
scrollercontent[2]='武鸣人滚动三号<br /> <a href="https://www.wuming.ren">武鸣人网</a>,各种信息免费发布，资源共享合作共赢！33333'
////NO need to edit beyond here/////////////
var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var dom=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1
if (ie4||dom)
document.write('<div style="position:relative;width:'+scroller_width+';height:'+scroller_height+';overflow:hidden"><div id="canvas0" style="position:absolute;background-color:'+bgcolor+';width:'+scroller_width+';height:'+scroller_height+';top:'+scroller_height+';filter:alpha(opacity=20);-moz-opacity:0.2;"></div><div id="canvas1" style="position:absolute;background-color:'+bgcolor+';width:'+scroller_width+';height:'+scroller_height+';top:'+scroller_height+';filter:alpha(opacity=20);-moz-opacity:0.2;"></div></div>')
else if (document.layers){
document.write('<ilayer id=tickernsmain visibility=hide width='+scroller_width+' height='+scroller_height+' bgColor='+bgcolor+'><layer id=tickernssub width='+scroller_width+' height='+scroller_height+' left=0 top=0>'+scrollercontent[0]+'</layer></ilayer>')
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
var curpos=scroller_height*(1)
var degree=10
var curcanvas="canvas0"
var curindex=0
var nextindex=1
function moveslide(){
if (curpos>0){
curpos=Math.max(curpos-degree,0)
tempobj.style.top=curpos
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
else{
clearInterval(dropslide)
if (crossobj.filters)
crossobj.filters.alpha.opacity=100
else if (crossobj.style.MozOpacity)
crossobj.style.MozOpacity=1
nextcanvas=(curcanvas=="canvas0")? "canvas0" : "canvas1"
tempobj=ie4? eval("document.all."+nextcanvas) : document.getElementById(nextcanvas)
tempobj.innerHTML=scrollercontent[curindex]
nextindex=(nextindex<scrollercontent.length-1)? nextindex+1 : 0
setTimeout("rotateslide()",pause)
}
}
function rotateslide(){
if (ie4||dom){
resetit(curcanvas)
crossobj=tempobj=ie4? eval("document.all."+curcanvas) : document.getElementById(curcanvas)
crossobj.style.zIndex++
if (crossobj.filters)
document.all.canvas0.filters.alpha.opacity=document.all.canvas1.filters.alpha.opacity=20
else if (crossobj.style.MozOpacity)
document.getElementById("canvas0").style.MozOpacity=document.getElementById("canvas1").style.MozOpacity=0.2
var temp='setInterval("moveslide()",50)'
dropslide=eval(temp)
curcanvas=(curcanvas=="canvas0")? "canvas1" : "canvas0"
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
else if (document.layers){
crossobj.document.write(scrollercontent[curindex])
crossobj.document.close()
}
curindex=(curindex<scrollercontent.length-1)? curindex+1 : 0
}
function resetit(what){
curpos=scroller_height*(1)
var crossobj=ie4? eval("document.all."+what) : document.getElementById(what)
crossobj.style.top=curpos
}
function startit(){
crossobj=ie4? eval("document.all."+curcanvas) : dom? document.getElementById(curcanvas) : document.tickernsmain.document.tickernssub
if (ie4||dom){
crossobj.innerHTML=scrollercontent[curindex]
rotateslide()
}
else{
document.tickernsmain.visibility='show'
curindex++
setInterval("rotateslide()",pause)
}
}//武鸣人网站https://www.wuming.ren 网站很好记住，wuming.ren(武鸣拼音.ren域名后缀)
if (ie4||dom||document.layers)
window.onload=startit
</script>