<body> 
<SCRIPT LANGUAGE="JavaScript"> 
var s ="网页可见区域宽："+ document.body.clientWidth; s+="\r\n网页可见区域高："+ document.body.clientHeight; s += "\r\n网页正文全文宽："+ document.body.scrollWidth; s += "\r\n网页正文全文高："+ document.body.scrollHeight; s += "\r\n网页正文部分上："+ window.screenTop; s += "\r\n网页正文部分左："+ window.screenLeft; s += "\r\n屏幕分辨率的高："+ window.screen.height; s += "\r\n屏幕分辨率的宽："+ window.screen.width; s +="\r\n屏幕可用工作区高度："+ window.screen.availHeight; s +="\r\n屏幕可用工作区宽度："+ window.screen.availWidth; 
alert(s); </SCRIPT> <html><body><script type="text/javascript">
if (window.screen.width==1152) {
alert("小广告！");
}else if (window.screen.width>1152){alert("大广告！");}else{alert("无广告！");}</script></body></html>