s    +=  "\r\n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网页可见区域高:"+    document.body.offsetWeight    +"    (包括边线的宽)";   
s    +=  "\r\n网页可见区域高:"+    document.body.offsetHeight    +"    (包括边线的宽)";   
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网页被卷去的高:"+    document.body.scrollTop;   
s    +=  "\r\n网页被卷去的左:"+    document.body.scrollLeft;   
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;



正则匹配 

匹配中文字符的正则表达式: [\u4e00-\u9fa5] 
匹配双字节字符(包括汉字在内):[^\x00-\xff] 
匹配空行的正则表达式:\n[\s| ]*\r 
匹配HTML标记的正则表达式:/<(.*)>.*<\/\1>|<(.*) \/>/  
匹配首尾空格的正则表达式:(^\s*)|(\s*$)(像vbscript那样的trim函数) 
匹配Email地址的正则表达式:\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* 
匹配网址URL的正则表达式:http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)? 
以下是例子: 
利用正则表达式限制网页表单里的文本框输入内容: 
用正则表达式限制只能输入中文:onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\u4E00-\u9FA5]/g,''))" 
1.用正则表达式限制只能输入全角字符: onkeyup="value=value.replace(/[^\uFF00-\uFFFF]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\uFF00-\uFFFF]/g,''))" 
2.用正则表达式限制只能输入数字:onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))" 
3.用正则表达式限制只能输入数字和英文:onkeyup="value=value.replace(/[\W]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"



消除图像工具栏 
<IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="false">  
or 
<head> 
<meta http-equiv="imagetoolbar" content="no"> 
</head>



无提示关闭 


function Close() 
{ 
var ua=navigator.userAgent 
var ie=navigator.appName=="Microsoft Internet Explorer"?true:false 
if(ie) 
{ 
      var IEversion=parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE ")))) 
  if(IEversion< 5.5) 
    { 
   var str    = '<object id=noTipClose classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">' 
         str += '<param name="Command" value="Close"></object>'; 
         document.body.insertAdjacentHTML("beforeEnd", str); 
         document.all.noTipClose.Click(); 
    } 
        else 
    { 
         window.opener =null; 
         window.close(); 
        } 
     } 
else 
{ 
    window.close() 
     } 
}



<META HTTP-EQUIV="pragma" CONTENT="no-cache"> 
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> 
<META HTTP-EQUIV="expires" CONTENT="0"> 


<input type=button value=导入收藏夹 onclick="window.external.ImportExportFavorites(true,'http://localhost');"> 
<input type=button value=导出收藏夹 onclick="window.external.ImportExportFavorites(false,'http://localhost');"> 
<input type=button value=整理收藏夹 onclick="window.external.ShowBrowserUI('OrganizeFavorites', null)"> 
<input type=button value=语言设置     onclick="window.external.ShowBrowserUI('LanguageDialog', null)"> 
<input type=button value=加入收藏夹 onclick="window.external.AddFavorite('http://www.google.com/', 'google')"> 
<input type=button value=加入到频道 onclick="window.external.addChannel('http://www.google.com/')"> 
<input type=button value=加入到频道 onclick="window.external.showBrowserUI('PrivacySettings',null)"> 

<input type=text onkeypress="return event.keyCode>=48&&event.keyCode<=57||(this.value.indexOf('.')<0?event.keyCode==46:false)" onpaste="return !clipboardData.getData('text').match(/\D/)" ondragenter="return false">