新浪网的横向不间断滚动广告（做网页的时候经常会用到）

<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>

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