<script>
alert(screen.width+"*"+screen.height)
</script>
screen.width
<script>
function centerWindow(url,w,h){
l=(screen.width-w)/2
t=(screen.height-h)/2
window.open(url,'','left='+l+',top='+t+',width='+w+',height='+h)
}
</script>
<input type=button onclick="centerWindow('about:blank',200,200)">
<body>
<SCRIPT LANGUAGE="
javascript">
var s ="网页可见区域宽:"+ document.body.clientWidth;
s+="rn网页可见区域高:"+ document.body.clientHeight;
s += "rn网页正文全文宽:"+ document.body.scrollWidth;
s += "rn网页正文全文高:"+ document.body.scrollHeight;
s += "rn网页正文部分上:"+ window.screenTop;
s += "rn网页正文部分左:"+ window.screenLeft;
s += "rn
屏幕分辨率的高:"+ window.screen.height;
s += "rn屏幕分辨率的宽:"+ window.screen.width;
s +="rn屏幕可用工作区高度:"+ window.screen.availHeight;
s +="rn屏幕可用工作区宽度:"+ window.screen.availWidth;
alert(s);
</SCRIPT>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function redirectPage() {
/*var url640x480 = "http://www.yoursite.com/640x480.html";**记得改相应的页面*/
var url800x600 = "index1.asp";
var url1024x768 = "index2.asp";
/*if ((screen.width == 640) && (screen.height == 480))
window.location.href= url640x480;*/
if (screen.width <= 800 )
window.location.href= url800x600;
else if ((screen.width >= 1024) )
window.location.href= url1024x768;
}
// End -->
</script>