我想做个图片跟到鼠标移动的效果而且移动的时候不能超过浏览器边界
我想做个图片跟到鼠标移动的效果而且移动的时候不能超过浏览器边界<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.
<html xmlns="http://www.
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<STYLE type=TEXT/CSS>
.tm {
FILTER: Alpha(Opacity=50)
}
</STYLE>
<DIV id=Layer1 style="HEIGHT: 31px; LEFT: 409px; POSITION: absolute; TOP: 131px; WIDTH: 14px"><IMG class=tm src="LOGO.jpg"></DIV>
<SCRIPT>
function move_layer()
{
Layer1.style.left=event.clientX+document.body.scrollLeft+-10;
Layer1.style.top=event.clientY+document.body.scrollTop+-5;
top.status="鼠标X="+event.clientX + " sX=" + document.body.scrollLeft + " 鼠标Y=" + event.clientY+ " sY=" + document.body.scrollTop;
}
document.onmousemove =move_layer;
</SCRIPT>
</body>
</html>
这段代码是跟随鼠标移动的代码
我要加上什么才能让他不超过边界
