<body>
<div id="div1" style="position:absolute;left:0px;top:0px;width :100px;height:100px; background:blue;" >广告啊</div><script type="text/javascript">
var odiv=document.getElementById("div1");
//alert (odiv);
var x=0;
var y=0;
var xs=10;
var ys=10;
function move (){
x=x+xs;
y=y+ys;
//alert (y)
if(x>=document.body.clientWidth-odiv.offsetWidth||x<=0)
{
xs=-1*xs;
}
if (y>=document.body.clientHeight-odiv.offsetHeight||y<=0)
{
ys=-1*ys;
}
odiv.style.left=x+'px';odiv.style.top=y+'px'; }
var dt =setInterval("move()",1);
odiv.onmouseover=function(){
clearInterval(dt);}
odiv.onmouseout=function(){
dt =setInterval("move()",100);
}
</script>
</body>火狐setintervaloffsetWidht
<div id="div1" style="position:absolute;left:0px;top:0px;width :100px;height:100px; background:blue;" >广告啊</div><script type="text/javascript">
var odiv=document.getElementById("div1");
//alert (odiv);
var x=0;
var y=0;
var xs=10;
var ys=10;
function move (){
x=x+xs;
y=y+ys;
//alert (y)
if(x>=document.body.clientWidth-odiv.offsetWidth||x<=0)
{
xs=-1*xs;
}
if (y>=document.body.clientHeight-odiv.offsetHeight||y<=0)
{
ys=-1*ys;
}
odiv.style.left=x+'px';odiv.style.top=y+'px'; }
var dt =setInterval("move()",1);
odiv.onmouseover=function(){
clearInterval(dt);}
odiv.onmouseout=function(){
dt =setInterval("move()",100);
}
</script>
</body>火狐setintervaloffsetWidht
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