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<div><h2>JS全屏漂浮广告，移入光标停止移动·柯乐义</h2></div>
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<div id="roll">我是广告<br />www.jb51.com</div>
<script type="text/javascript">
var ggRoll = {
roll: document.getElementById("roll"),
speed: 20,
statusX: 1,
statusY: 1,
x: 100,
y: 300,
winW: document.documentElement.clientWidth - document.getElementById("roll").offsetWidth,
winH: document.documentElement.clientHeight - document.getElementById("roll").offsetHeight,
Go: function () {
this.roll.style.left = this.x + 'px';
this.roll.style.top = this.y + 'px';
this.x = this.x + (this.statusX ? -1 : 1)
if (this.x < 0) { this.statusX = 0 }
if (this.x > this.winW) { this.statusX = 1 }
this.y = this.y + (this.statusY ? -1 : 1)
if (this.y < 0) { this.statusY = 0 }
if (this.y > this.winH) { this.statusY = 1 }
}
}
var interval = setInterval("ggRoll.Go()", ggRoll.speed);
ggRoll.roll.onmouseover = function () { clearInterval(interval) };
ggRoll.roll.onmouseout = function () { interval = setInterval("ggRoll.Go()", ggRoll.speed) };
</script>
</body>
</html>
