详细解析网页漂浮广告代码的含义

网页漂浮广图片特效这种特效我们总是很喜欢鼠标指向图片后图片停止移动

<pre>

<div id=ad ><a >

<img src=/img/jpg border=></a>

</div>

<script>

var x = y =

var xin = true yin = true

var step =

var delay =

var obj=documentgetElementById(ad)

function floatAD() {

var L=T=

var R= documentbodyclientWidthobjoffsetWidth

var B = documentbodyclientHeightobjoffsetHeight

objstyleleft = x + documentbodyscrollLeft

objstyletop = y + documentbodyscrollTop

x = x + step*(xin?:)

if (x < L) { xin = true; x = L}

if (x > R){ xin = false; x = R}

y = y + step*(yin?:)

if (y < T) { yin = true; y = T }

if (y > B) { yin = false; y = B }

}

var itl= setInterval(floatAD() delay)

objonmouseover=function(){clearInterval(itl)}

objonmouseout=function(){itl=setInterval(floatAD() delay)}

</script>

</pre>

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