javascript小技巧

liuzidong · 发表于 2013-2-7 23:59:39

转载: javascript小技巧
http://blog.csdn.net/zzy981/archive/2006/04/27/679604.aspx

js 替换回车
str.replace(/\r\n/ig,"");str.replace(/\r\n/g,"");

事件源对象
event.srcElement.tagName event.srcElement.type
捕获释放
event.srcElement.setCapture();  event.srcElement.releaseCapture();
事件按键
event.keyCode event.shiftKey event.altKey event.ctrlKey
事件返回值
event.returnValue
鼠标位置
event.x event.y
窗体活动元素
document.activeElement
绑定事件
document.captureEvents(Event.KEYDOWN);
访问窗体元素
document.all("txt").focus(); document.all("txt").select();
窗体命令
document.execCommand
窗体COOKIE
document.cookie
菜单事件
document.oncontextmenu
创建元素
document.createElement("SPAN");
根据鼠标获得元素：
document.elementFromPoint(event.x,event.y).tagName=="TD document.elementFromPoint(event.x,event.y).appendChild(ms)
窗体图片
document.images[索引]
窗体事件绑定
document.onmousedown=scrollwindow;
元素
document.窗体.elements[索引]
对象绑定事件
document.all.xxx.detachEvent('onclick',a);
插件数目
navigator.plugins
取变量类型
typeof($js_libpath) == "undefined"
下拉框
下拉框.options[索引] 下拉框.options.length
查找对象
document.getElementsByName("r1"); document.getElementById(id);
定时
timer=setInterval('scrollwindow()',delay); clearInterval(timer);
UNCODE编码
escape() ,unescape
父对象
obj.parentElement(dhtml) obj.parentNode(dom)
交换表的行
TableID.moveRow(2,1)
替换CSS
document.all.csss.href = "a.css";
并排显示
display:inline
隐藏焦点
hidefocus=true
根据宽度换行
style="word-break:break-all"
自动刷新
<meta HTTP-EQUIV="refresh" CONTENT="8;URL=http://c98.yeah.net">
简单邮件
<a  href="mailto:aaa@bbb.com?subject=ccc&body=xxxyyy">
快速转到位置
obj.scrollIntoView(true)
锚
<a name="first"> <a href="#first">anchors</a>
网页传递参数
location.search();
可编辑
obj.contenteditable=true
执行菜单命令
obj.execCommand
双字节字符
/[^\x00-\xff]/
汉字
/[\u4e00-\u9fa5]/
让英文字符串超出表格宽度自动换行
word-wrap: break-word; word-break: break-all;
透明背景
<IFRAME src="1.htm" width=300 height=180 allowtransparency></iframe>
获得style内容
obj.style.cssText
HTML标签
document.documentElement.innerHTML
第一个style标签
document.styleSheets[0]
style标签里的第一个样式
document.styleSheets[0].rules[0]
防止点击空链接时，页面往往重置到页首端。
<a href="javascript:function()">word</a>
上一网页源
asp:
request.servervariables("HTTP_REFERER")
javascript:
document.referrer
释放内存
CollectGarbage();
禁止右键
document.oncontextmenu = function() { return false;}
禁止保存
<noscript><iframe src="*.htm"></iframe></noscript>
禁止选取
<body oncontextmenu="return false" ondragstart="return false" onselectstart ="return false" onselect="document.selection.empty()" oncopy="document.selection.empty()" onbeforecopy="return false"onmouseup="document.selection.empty()>
禁止粘贴
<input type=text onpaste="return false">
地址栏图标
<link rel="Shortcut Icon" href="favicon.ico">
favicon.ico 名字最好不变16*16的16色,放虚拟目录根目录下
收藏栏图标
<link rel="Bookmark" href="favicon.ico">
查看源码
<input type=button value=查看网页源代码 >
关闭输入法
<input style="ime-mode:disabled">
自动全选
<input type=text name=text1 value="123" >
ENTER键可以让光标移到下一个输入框
<input onkeydown="if(event.keyCode==13)event.keyCode=9">
文本框的默认值
<input type=text value="123" >
title换行
obj.title = "123&#13sdfs&#32"
获得时间所代表的微秒
var n1 = new Date("2004-10-10".replace(/-/g, "\/")).getTime()
窗口是否关闭
win.closed
checkbox扁平
<input type=checkbox style="position: absolute; clip:rect(5px 15px 15px 5px)"><br>
获取选中内容
document.selection.createRange().duplicate().text
自动完成功能
<input  type=text  autocomplete=on>打开该功能  <input  type=text  autocomplete=off>关闭该功能
窗口最大化
<body >
无关闭按钮IE
window.open("aa.htm", "meizz", "fullscreen=7");
//统一编码/解码 alert(decodeURIComponent(encodeURIComponent("http://你好.com?as= hehe")))
encodeURIComponent对":"、"/"、";" 和 "?"也编码
表格行指示
<tr  onmouseout="this.bgColor='#ffffff'">

//各种尺寸 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;

//过滤数字

//特殊用途

//不缓存

//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

//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() } }

//取得控件得绝对位置(1)
<script language="javascript">  function getoffset(e) { var t=e.offsetTop; var l=e.offsetLeft; while(e=e.offsetParent)  { t+=e.offsetTop; l+=e.offsetLeft; } var rec = new Array(1);  rec[0]  = t;  rec[1] = l;  return rec }  </script>

//最小化,最大化,关闭
//光标停在文字最后
<script language="javascript"> function cc() {  var e = event.srcElement;  var r =e.createTextRange();  r.moveStart('character',e.value.length);  r.collapse(true);  r.select(); } </script> <input type=text name=text1 value="123" >

//页面进入和退出的特效
进入页面
<meta http-equiv="Page-Enter" content="revealTrans(duration=x, transition=y)">
退出页面
<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transition=y)">
这个是页面被载入和调出时的一些特效。duration表示特效的持续时间，以秒为单位。transition表示使
用哪种特效，取值为1-23:
　　0 矩形缩小
　　1 矩形扩大
　　2 圆形缩小
　　3 圆形扩大
　　4 下到上刷新
　　5 上到下刷新
　　6 左到右刷新
　　7 右到左刷新
　　8 竖百叶窗
　　9 横百叶窗
　　10 错位横百叶窗
　　11 错位竖百叶窗
　　12 点扩散
　　13 左右到中间刷新
　　14 中间到左右刷新
　　15 中间到上下
　　16 上下到中间
　　17 右下到左上
　　18 右上到左下
　　19 左上到右下
　　20 左下到右上
　　21 横条
　　22 竖条
　　23

//网页是否被检索

//打印分页

//设置打印
<object id="factory" style="display:none" viewastext classid="clsid:1663ed61-23eb-11d2-b92f-008048fdd814" codebase="http://www.meadroid.com/scriptx/ScriptX.cab#Version=5,60,0,360" ></object> <input type=button value=页面设置 > <input type=button value=打印预览 >

<script language=javascript> function window.onload() { // -- advanced features factory.printing.SetMarginMeasure(2) // measure margins in inches factory.printing.SetPageRange(false, 1, 3) // need pages from 1 to 3 factory.printing.printer = "HP DeskJet 870C" factory.printing.copies = 2 factory.printing.collate = true factory.printing.paperSize = "A4" factory.printing.paperSource = "Manual feed" // -- basic features factory.printing.header = "居左显示&b居中显示&b居右显示页码，第&p页/共&P页" factory.printing.footer = "（自定义页脚）" factory.printing.portrait = false factory.printing.leftMargin = 0.75 factory.printing.topMargin = 1.5 factory.printing.rightMargin = 0.75 factory.printing.bottomMargin = 1.5 } function Print(frame) { factory.printing.Print(true, frame) // print with prompt } </script>

<input type=button value="打印本页" > <input type=button value="页面设置" > <input type=button value="打印预览" ><br> <a href="http://www.meadroid.com/scriptx/docs/printdoc.htm?static"  target=_blank>具体使用手册，更多信息，点这里</a>


//自带的打印预览
WebBrowser.ExecWB(1,1) 打开
Web.ExecWB(2,1) 关闭现在所有的IE窗口，并打开一个新窗口
Web.ExecWB(4,1) 保存网页
Web.ExecWB(6,1) 打印
Web.ExecWB(7,1) 打印预览
Web.ExecWB(8,1) 打印页面设置
Web.ExecWB(10,1) 查看页面属性
Web.ExecWB(15,1) 好像是撤销，有待确认
Web.ExecWB(17,1) 全选
Web.ExecWB(22,1) 刷新
Web.ExecWB(45,1) 关闭窗体无提示

<style media=print>  .Noprint{display:none;}  .PageNext{page-break-after: always;}  </style>
<object  id="WebBrowser"  width=0  height=0  classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2">    </object>    <center class="Noprint" > <input type=button value=打印 onclick=document.all.WebBrowser.ExecWB(6,1)>  <input type=button value=直接打印 onclick=document.all.WebBrowser.ExecWB(6,6)>  <input type=button value=页面设置 onclick=document.all.WebBrowser.ExecWB(8,1)>  </p>  <p> <input type=button value=打印预览 onclick=document.all.WebBrowser.ExecWB(7,1)>  </center>

//去掉打印时的页眉页脚
<script  language="JavaScript"> var HKEY_Root,HKEY_Path,HKEY_Key; HKEY_Root="HKEY_CURRENT_USER"; HKEY_Path="\\Software\\Microsoft\\Internet Explorer\\PageSetup\\"; //设置网页打印的页眉页脚为空 function PageSetup_Null() {  try  {       var Wsh=new ActiveXObject("WScript.Shell"); HKEY_Key="header"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,""); HKEY_Key="footer"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"");  }  catch(e){} } //设置网页打印的页眉页脚为默认值 function  PageSetup_Default() { try  { var Wsh=new ActiveXObject("WScript.Shell"); HKEY_Key="header"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&w&b页码,&p/&P"); HKEY_Key="footer"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&u&b&d");  }  catch(e){} } </script> <input type="button" value="清空页码" onclick=PageSetup_Null()> <input type="button" value="恢复页码" onclick=PageSetup_Default()>

//浏览器验证
function checkBrowser() {    this.ver=navigator.appVersion    this.dom=document.getElementById?1:0    this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;    this.ie4=(document.all && !this.dom)?1:0;    this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;    this.ns4=(document.layers && !this.dom)?1:0;    this.mac=(this.ver.indexOf('Mac') > -1) ?1:0;    this.ope=(navigator.userAgent.indexOf('Opera')>-1);    this.ie=(this.ie6 || this.ie5 || this.ie4)    this.ns=(this.ns4 || this.ns5)    this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns5 || this.ns4 || this.mac || this.ope)    this.nbw=(!this.bw)    return this; }

//计算内容宽和高
<SCRIPT  language="javascript"> function  test(obj) {       var  range  =  obj.createTextRange();       alert("内容区宽度:  "  +  range.boundingWidth                                                    +  "px\r\n内容区高度:  "  +  range.boundingHeight  +  "px");                } </SCRIPT>
<BODY> <Textarea id="txt" height="150">sdf</textarea><INPUT  type="button"  value="计算内容宽度"  > </BODY>
//无模式的提示框
//屏蔽按键
<[code="html">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
  <noscript><meta http-equiv="refresh" content="0;url=about:noscript"></noscript>
  <title>屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键</title>
</head>
<body>
屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键
</body>
</html>

<script language="Javascript"> </script> </body>

//可编辑SELECT

//设置光标位置
function getCaret(textbox) {  var control = document.activeElement;  textbox.focus();  var rang = document.selection.createRange(); rang.setEndPoint("StartToStart",textbox.createTextRange())  control.focus();  return rang.text.length; } function setCaret(textbox,pos) {  try  { var r =textbox.createTextRange(); r.moveStart('character',pos); r.collapse(true); r.select();  }  catch(e)  {} } function selectLength(textbox,start,len) {  try  { var r =textbox.createTextRange();    r.moveEnd('character',len-(textbox.value.length-start)); r.moveStart('character',start);    r.select();  }  catch(e)  {//alert(e.description)} } function insertAtCaret(textbox,text) {  textbox.focus();  document.selection.createRange().text = text; }

//页内查找
function findInPage(str) {  var txt, i, found,n = 0;  if (str == "")  { return false;  }  txt = document.body.createTextRange();  for (i = 0; i <= n && (found = txt.findText(str)) != false; i++)  { txt.moveStart("character", 1); txt.moveEnd("textedit");  }  if (found)  { txt.moveStart("character", -1); txt.findText(str); txt.select(); txt.scrollIntoView(); n++; }  else  { if (n > 0) { n = 0; findInPage(str); } else { alert(str + "...您要找的文字不存在。\n \n请试着输入页面中的关键字再次查找！"); }  }  return false; }

//操作EXECL
<script language="javascript"> function jStartExcel() {  var xls = new ActiveXObject ( "Excel.Application" );  xls.visible = true;  var newBook = xls.Workbooks.Add;  newBook.Worksheets.Add;  newBook.Worksheets(1).Activate;  xls.ActiveWorkBook.ActiveSheet.PageSetup.Orientation = 2;  xls.ActiveWorkBook.ActiveSheet.PageSetup.PaperSize = 5;  newBook.Worksheets(1).Columns("A").columnwidth=50;  newBook.Worksheets(1).Columns("A").WrapText = true;  newBook.Worksheets(1).Columns("B").columnwidth=50;  newBook.Worksheets(1).Columns("B").WrapText = true;  newBook.Worksheets(1).Range("A1:B1000").NumberFormat = "0";  newBook.Worksheets(1).Range("A1:B1000").HorizontalAlignment = -4131;  newBook.Worksheets(1).Cells(1,1).Interior.ColorIndex="15";  newBook.Worksheets(1).Cells(1,1).value="First Column, First Cell";  newBook.Worksheets(1).Cells(2,1).value="First Column, Second Cell";  newBook.Worksheets(1).Cells(1,2).value="Second Column, First Cell";  newBook.Worksheets(1).Cells(2,2).value="Second Column, Second Cell";  newBook.Worksheets(1).Name="My First WorkSheet"; } </script>

//自定义提示条
<a href="#" title="这是提示">tip</a> <script Language="JavaScript"> //***********默认设置定义.********************* tPopWait=50;//停留tWait豪秒后显示提示。 tPopShow=5000;//显示tShow豪秒后关闭提示 showPopStep=20; popOpacity=99; //***************内部变量定义***************** sPop=null; curShow=null; tFadeOut=null; tFadeIn=null; tFadeWaiting=null; document.write("<style type='text/css'id='defaultPopStyle'>"); document.write(".cPopText {  background-color: #F8F8F5;color:#000000; border: 1px #000000 solid;font-color: font-size: 12px; padding-right: 4px; padding-left: 4px; height: 20px; padding-top: 2px; padding-bottom: 2px; filter: Alpha(Opacity=0)}"); document.write("</style>"); document.write("<div id='dypopLayer' style='position:absolute;z-index:1000;' class='cPopText'></div>"); function showPopupText(){ var o=event.srcElement; MouseX=event.x; MouseY=event.y; if(o.alt!=null && o.alt!=""){o.dypop=o.alt;o.alt=""};       if(o.title!=null && o.title!=""){o.dypop=o.title;o.title=""}; if(o.dypop!=sPop) { sPop=o.dypop; clearTimeout(curShow); clearTimeout(tFadeOut); clearTimeout(tFadeIn); clearTimeout(tFadeWaiting); if(sPop==null || sPop=="") { dypopLayer.innerHTML=""; dypopLayer.style.filter="Alpha()"; dypopLayer.filters.Alpha.opacity=0; } else { if(o.dyclass!=null) popStyle=o.dyclass  else popStyle="cPopText"; curShow=setTimeout("showIt()",tPopWait); } } } function showIt(){ dypopLayer.className=popStyle; dypopLayer.innerHTML=sPop; popWidth=dypopLayer.clientWidth; popHeight=dypopLayer.clientHeight; if(MouseX+12+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24 else popLeftAdjust=0; if(MouseY+12+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24 else popTopAdjust=0; dypopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust; dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust; dypopLayer.style.filter="Alpha(Opacity=0)"; fadeOut(); } function fadeOut(){ if(dypopLayer.filters.Alpha.opacity<popOpacity) { dypopLayer.filters.Alpha.opacity+=showPopStep; tFadeOut=setTimeout("fadeOut()",1); } else { dypopLayer.filters.Alpha.opacity=popOpacity; tFadeWaiting=setTimeout("fadeIn()",tPopShow); } } function fadeIn(){ if(dypopLayer.filters.Alpha.opacity>0) { dypopLayer.filters.Alpha.opacity-=1; tFadeIn=setTimeout("fadeIn()",1); } } document.onmouseover=showPopupText; </script>

//插入文字
document.onclick =function(){  var oSource = window.event.srcElement;  if(oSource.tagName!="DIV")  return false;  var sel = document.selection;  if (sel!=null) {  var rng = sel.createRange();  if (rng!=null)  rng.pasteHTML("<font color=red>插入文字</font>");  }  }

//netscapte下操作xml

//判断键值

//禁止FSO
1.注销组件
regsvr32 /u scrrun.dll
2.修改PROGID
HKEY_CLASSES_ROOT\Scripting.FileSystemObject
Scripting.FileSystemObject
3.对于使用object的用户，修改HKEY_CLASSES_ROOT\Scripting.

//省略号
//检测media play版本
//图象按比例

//细线SELECT
function getComputerName() {  var objWMIService = GetObject("Winmgmts:root\cimv2");  for(e = new Enumerator(objWMIService) ; !e.atEnd() ; e.moveNext())  {    var getComputer = e.item();    return getComputer.Name;  } }

//条件编译
<SCRIPT LANGUAGE="JavaScript">  </SCRIPT> //mergeAttributes 复制所有读/写标签属性到指定元素。 <SCRIPT> function fnMerge(){ oSource.children[1].mergeAttributes(oSource.children[0]); } </SCRIPT>

<SPAN ID=oSource> <DIV ID="oDiv" ATTRIBUTE1="true" ATTRIBUTE2="true" onmouseout="this.style.color='#000000';" > This is a sample <B>DIV</B> element. </DIV> <DIV ID="oDiv2"> This is another sample <B>DIV</B> element. </DIV> </SPAN> <INPUT TYPE="button" VALUE="Merge Attributes"  >

<script language=javascript>
/*@cc_on @*/
/*@if (@_win32 && @_jscript_version>5)
function window.confirm(str)
{
execScript("n = msgbox('"+ str +"', 257)", "vbscript");
return(n == 1);
}
@end @*/
</script>

//取得innerText
<span style="border:1px solid #000000; position:absolute; overflow:hidden;" >
<select style="margin:-2px;">
<option>1111</option>
<option>11111111111111</option>
<option>111111111</option>
</select></span>

//Import
function Import() {
for( var i=0; i<arguments.length; i++ ) {
  var file = arguments;
  if ( file.match(/\.js$/i))
document.write('<script type=\"text/javascript\" src=\"' + file + '\"></sc' + 'ript>');
  else
document.write('<style type=\"text/css\">@import \"' + file + '\" ;</style>');
}
};

//js枚举
<script language="JavaScript">

</script>
<img src=".." onload = "DrawImage(this)">

<IE:clientCaps ID="oClientCaps" style="{behavior:url(#default#clientcaps)}" />
<SCRIPT>
var flash="";
WMPVersion= oClientCaps.getComponentVersion("{22D6F312-B0F6-11D0-94AB-0080C74C7E95}","ComponentID");
if (WMPVersion != "") {
flash = "";
var version = WMPVersion.split(",");
var i;
for (i = 0; i < version.length; i++) {
   if (i != 0)
flash += ".";
   flash += version;
}
   document.write("您的Windows Media Player 版本是:"+flash+"<p>");
  }
</SCRIPT>

<DIV STYLE="width: 120px; height: 50px; border: 1px solid blue;
         overflow: hidden; text-overflow:ellipsis">
<NOBR>就是比如有一行文字，很长，表格内一行显示不下.</NOBR>
</DIV>
<html>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<head>
<script language="javascript">
var ie  =navigator.appName=="Microsoft Internet Explorer"?true:false;

function keyDown(e)
{
if(!ie)
{
  var nkey=e.which;
  var iekey='现在是ns浏览器';
  var realkey=String.fromCharCode(e.which);
}
if(ie)
{
  var iekey=event.keyCode;
  var nkey='现在是ie浏览器';
  var realkey=String.fromCharCode(event.keyCode);
  if(event.keyCode==32){realkey='\' 空格\''}
  if(event.keyCode==13){realkey='\' 回车\''}
  if(event.keyCode==27){realkey='\' Esc\''}
  if(event.keyCode==16){realkey='\' Shift\''}
  if(event.keyCode==17){realkey='\' Ctrl\''}
  if(event.keyCode==18){realkey='\' Alt\''}
}
alert('ns浏览器中键值:'+nkey+'\n'+'ie浏览器中键值:'+iekey+'\n'+'实际键为'+realkey);
}
document.onkeydown = keyDown;
</script>
</head>
<body>
//Javascript Document.
<hr>
<center>
<h3>请按任意一个键。。。。</h3>
</center>
</body>
</html>
doc = new ActiveXObject("Msxml2.DOMDocument");
doc = new ActiveXObject("Microsoft.XMLDOM")
->>
doc = (new DOMParser()).parseFromString(sXML,'text/xml')
<input type=text name=re_name style="width:100px;height:21px;font-size:10pt;"><span style="width:18px;border:0px solid red;"><select name="r00" style="margin-left:-100px;width:118px; background-color:#FFEEEE;" onChange="document.all.re_name.value=this.value;">
            <option value="1">11111111<option>
            <option value="2">222222</option>
            <option value="3">333333</option>
            </select>
            </span>
<SCRIPT language="VBScript">
Function URLEncoding(vstrIn)
strReturn = ""
For i = 1 To Len(vstrIn)
      ThisChr = Mid(vStrIn,i,1)
      If Abs(Asc(ThisChr)) < &HFF Then
         strReturn = strReturn & ThisChr
      Else
         innerCode = Asc(ThisChr)
         If innerCode < 0 Then
            innerCode = innerCode + &H10000
         End If
         Hight8 = (innerCode  And &HFF00)\ &HFF
         Low8 = innerCode And &HFF
         strReturn = strReturn & "%" & Hex(Hight8) &  "%" & Hex(Low8)
      End If
Next
URLEncoding = strReturn
End Function
Function bytes2BSTR(vIn)
strReturn = ""
For i = 1 To LenB(vIn)
      ThisCharCode = AscB(MidB(vIn,i,1))
      If ThisCharCode < &H80 Then
         strReturn = strReturn & Chr(ThisCharCode)
      Else
         NextCharCode = AscB(MidB(vIn,i+1,1))
         strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode))
         i = i + 1
      End If
Next
bytes2BSTR = strReturn
End Function
dim strA,oReq
strA = URLEncoding("submit1=Submit&text1=中文")
set oReq = CreateObject("MSXML2.XMLHTTP")
oReq.open "POST","http://ServerName/VDir/TstResult.asp",false
oReq.setRequestHeader "Content-Length",Len(strA)
oReq.setRequestHeader "CONTENT-TYPE","application/x-www-form-urlencoded"
oReq.send strA
msgbox bytes2BSTR(oReq.responseBody)
</SCRIPT>

//readyState是xmlhttp返回数据的进度，0=载入中,1=未初始化,2=已载入,3=运行中,4=完成
(1)拖拽访问
event.dataTransfer.setData("URL", oImage.src);
sImageURL = event.dataTransfer.getData("URL")
(2)普通访问
window.clipboardData.setData("Text",oSource.innerText);
window.clipboardData.getData("Text");
<HTML>
<HEAD>
<META NAME="save" CONTENT="history">
<STYLE>
.sHistory {behavior:url(#default#savehistory);}
</STYLE>
</HEAD>
<BODY>
<INPUT class=sHistory type=text id=oPersistInput>
</BODY>
</HTML>
function modelessAlert(Msg)
{
window.showModelessDialog("javascript:alert(\""+escape(Msg)+"\");window.close();","","status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;");
}

<p  style="page-break-after:always">page1</p> <p  style="page-break-after:always">page2</p> <meta name="ROBOTS" content="属性值"> 　　其中属性值有以下一些: 　　属性值为"all": 文件将被检索，且页上链接可被查询；　　属性值为"none": 文件不被检索，而且不查询页上的链接；　　属性值为"index": 文件将被检索；　　属性值为"follow": 查询页上的链接；　　属性值为"noindex": 文件不检索，但可被查询链接；　　属性值为"nofollow":  <object id=min classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">  <param name="Command" value="Minimize"></object>  <object id=max classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">  <param name="Command" value="Maximize"></object>  <OBJECT id=close classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">  <PARAM NAME="Command" value="Close"></OBJECT>  <input type=button value=最小化 onclick=min.Click()>  <input type=button value=最大化 onclick=max.Click()>  <input type=button value=关闭 onclick=close.Click()>  <IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="false">  or <head> <meta http-equiv="imagetoolbar" content="no"> </head> <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 > <input type=button value=导出收藏夹 > <input type=button value=整理收藏夹 > <input type=button value=语言设置 > <input type=button value=加入收藏夹 > <input type=button value=加入到频道 > <input type=button value=加入到频道 > <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">

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