JavaScript 实现图片预加载的简单示例

<html> <head> <title>IE图片预加载类</title>  </head> <body> <div id="counter" style="position:absolute; z-index:98; left:expression(document.body.clientWidth/2-60); top:expression(document.body.clientHeight/2-10); width:120px; height:20px; background:#000000; color:#ffffff;">图片加载中...</div> <div id="divPageMask" style="position:absolute; z-index:99; left:0px; top:0px; width:expression(document.body.clientWidth); height:expression(document.body.clientHeight); background:black; filter:alpha(opacity=50);"></div> <div id="box"></div>  </body> </html>

[Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]