新浪网的横向不间断滚动广告

<script language="Javascript">
imgArr=new Array()
imgArr[0]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/l/lisababy6617.gif border=0></a>"
imgArr[1]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/t/testool4434.gif border=0></a>"
imgArr[2]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/s/sxyuda6549.gif border=0></a>"
imgArr[3]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/q/qeji4041.gif border=0></a>"
imgArr[4]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/i/ieasytraining3984.gif border=0></a>"
imgArr[5]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/t/trainings1442.gif border=0></a>"
imgArr[6]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/r/renhebj002indexasp2486.gif border=0></a>"
imgArr[7]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/e/efeedlink6085.gif border=0></a>"
imgArr[8]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/k/kaixingou5811.gif border=0></a>"
imgArr[9]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/h/9happyindex8htm5912.gif border=0></a>"
imgArr[10]="<a href=# onmouseMove=‘’javascript:outHover=true‘’ onMouseover=‘’javascript:outHover=true‘’ onMouseout=‘’javascript:outHover=false;mvStart()‘’><img src=http://image0.sina.com.cn/images/bizsite/promote/c/chinaroom6034.gif border=0></a>"
var moveStep=4 //步长，单位：pixel
var moveRelax=100 //移动时间间隔，单位：ms

ns4=(document.layers)?true:false

var displayImgAmount=4 //视区窗口可显示个数
var divWidth=125 //每块图片占位宽
var divHeight=60 //每块图片占位高

var startDnum=0
var nextDnum=startDnum+displayImgAmount
var timeID
var outHover=false

var startDivClipLeft
var nextDivClipRight

function initDivPlace(){
if (ns4){
for (i=0;i<displayImgAmount;i++){
eval("document.divOuter.document.divAds"+i+".left="+divWidth*i)
}
for (i=displayImgAmount;i<imgArr.length;i++){
eval("document.divOuter.document.divAds"+i+".left="+divWidth*displayImgAmount)
}
}else{
for (i=0;i<displayImgAmount;i++){
eval("document.all.divAds"+i+".style.left="+divWidth*i)
}
for (i=displayImgAmount;i<imgArr.length;i++){
eval("document.all.divAds"+i+".style.left="+divWidth*displayImgAmount)
}
}
}

function mvStart(){
timeID=setTimeout(moveLeftDiv,moveRelax)
}

function mvStop(){
clearTimeout(timeID)
}

function moveLeftDiv(){
if (ns4){
for (i=0;i<=displayImgAmount;i++){
eval("document.divOuter.document.divAds"+parseInt((startDnum+i)%imgArr.length)+".left=document.divOuter.document.divAds"+parseInt((startDnum+i)%imgArr.length)+".left-moveStep")
}

startDivClipLeft=parseInt(eval("document.divOuter.document.divAds"+startDnum+".clip.left"))
nextDivClipRight=parseInt(eval("document.divOuter.document.divAds"+nextDnum+".clip.right"))

if (startDivClipLeft+moveStep>divWidth){
eval("document.divOuter.document.divAds"+nextDnum+".clip.right="+divWidth)

eval("document.divOuter.document.divAds"+startDnum+".left="+divWidth*displayImgAmount)
eval("document.divOuter.document.divAds"+parseInt((nextDnum+1)%imgArr.length)+".left=document.divOuter.document.divAds"+nextDnum+".left+"+divWidth)
eval("document.divOuter.document.divAds"+parseInt((nextDnum+1)%imgArr.length)+".clip.left=0")


startDnum=(++startDnum)%imgArr.length
nextDnum=(startDnum+displayImgAmount)%imgArr.length

startDivClipLeft=moveStep-(divWidth-startDivClipLeft)
nextDivClipRight=moveStep-(divWidth-nextDivClipRight)
}else{
eval("document.divOuter.document.divAds"+nextDnum+".clip.left=0")
startDivClipLeft+=moveStep
nextDivClipRight+=moveStep
}
eval("document.divOuter.document.divAds"+startDnum+".clip.left="+startDivClipLeft)
eval("document.divOuter.document.divAds"+nextDnum+".clip.right="+nextDivClipRight)
}else{
for (i=0;i<=displayImgAmount;i++){
eval("document.all.divAds"+parseInt((startDnum+i)%imgArr.length)+".style.left=document.all.divAds"+parseInt((startDnum+i)%imgArr.length)+".style.pixelLeft-moveStep")
}

startDivClipLeft=parseInt(eval("document.all.divAds"+startDnum+".currentStyle.clipLeft"))
nextDivClipRight=parseInt(eval("document.all.divAds"+nextDnum+".currentStyle.clipRight"))

if (startDivClipLeft+moveStep>divWidth){
eval("document.all.divAds"+nextDnum+".style.clip=‘’rect(0,"+divWidth+","+divHeight+",0"+")‘’")

eval("document.all.divAds"+startDnum+".style.left="+divWidth*displayImgAmount)
eval("document.all.divAds"+parseInt((nextDnum+1)%imgArr.length)+".style.left=document.all.divAds"+nextDnum+".style.pixelLeft+"+divWidth)

startDnum=(++startDnum)%imgArr.length
nextDnum=(startDnum+displayImgAmount)%imgArr.length

startDivClipLeft=moveStep-(divWidth-startDivClipLeft)
nextDivClipRight=moveStep-(divWidth-nextDivClipRight)
}else{
startDivClipLeft+=moveStep
nextDivClipRight+=moveStep
}
eval("document.all.divAds"+startDnum+".style.clip=‘’rect(0,"+divWidth+","+divHeight+","+startDivClipLeft+")‘’")
eval("document.all.divAds"+nextDnum+".style.clip=‘’rect(0,"+nextDivClipRight+","+divHeight+",0)‘’")
}

if (outHover){
mvStop()
}else{
mvStart()
}


}

function writeDivs(){
if (ns4){
document.write("<ilayer name=divOuter width=750 height="+divHeight+">")

for (i=0;i<imgArr.length;i++){
document.write("<layer name=divAds"+i+">")
document.write(imgArr[i]+" ")
document.write("</layer>")
}
document.write("</ilayer>")
document.close()
for (i=displayImgAmount;i<imgArr.length;i++){
eval("document.divOuter.document.divAds"+i+".clip.right=0")
}
}else{
document.write("<div id=divOuter style=‘’position:relative‘’ width=750 height="+divHeight+">")

for (i=0;i<imgArr.length;i++){
document.write("<div id=divAds"+i+" style=‘’position:absolute;clip:rect(0,"+divWidth+","+divHeight+",0)‘’>")
document.write(imgArr[i]+" ")
document.write("</div>")
}
document.write("</div>")
for (i=displayImgAmount;i<imgArr.length;i++){
eval("document.all.divAds"+i+".style.clip=‘’rect(0,0,"+divHeight+",0)‘’")
}
}
}
</script>
<BODY onload=javascript:mvStart()>
<script language=Javascript>writeDivs();initDivPlace();</script>

原文转自：http://www.ltesting.net