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javascript常用技巧全套代码展示

JavaScript 水墨上仙 3178次浏览

javascript常用技巧全套代码展示

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 onclick="window.location = 'view-source:'+ 'http://www.csdn.net/'"> 
关闭输入法 
<input style="ime-mode:disabled"> 
自动全选 
<input type=text name=text1 value="123" onfocus="this.select()"> 
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" onfocus="alert(this.defaultValue)"> 
title换行 
obj.title = "123 sdfs " 
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 onload="window.resizeTo(window.screen.width - 4,window.screen.height-50);window.moveTo(-4,-4)"> 
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 onmouseover="this.bgColor='#f0f0f0'" 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 
<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"> 
 
//特殊用途 
<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)"> 
 
//不缓存 
<META HTTP-EQUIV="pragma" CONTENT="no-cache"> 
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> 
<META HTTP-EQUIV="expires" CONTENT="0"> 
 
 
//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() 
   } 
} 
//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> 
//获得控件的绝对位置(2) 
oRect = obj.getBoundingClientRect(); 
oRect.left 
oRect. 
//最小化,最大化,关闭 
<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()>  
 
 
//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" onfocus="cc()"> 
//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)"> 
推出页面<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 
<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":  
 
//打印分页 
<p  style="page-break-after:always">page1</p>   
<p  style="page-break-after:always">page2</p>   
 
//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 onclick="factory.printing.PageSetup()"> 
<input type=button value=打印预览 onclick="factory.printing.Preview()"> 
  
<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" onclick="factory.printing.Print(false)"> 
<input type=button value="页面设置" onclick="factory.printing.PageSetup()"> 
<input type=button value="打印预览" onclick="factory.printing.Preview()"><br> 
<a href="http://www.meadroid.com/scriptx/docs/printdoc.htm?static" target="_blank" rel="noopener">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;}<!--用本样式在打印时隐藏非打印项目-->  
.PageNext{page-break-after: always;}<!--控制分页-->  
</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"  onClick="test(txt)">   
</BODY> 
//无模式的提示框 
function modelessAlert(Msg) 
{ 
   window.showModelessDialog("javascript:alert(\""+escape(Msg)+"\");window.close();","","status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;"); 
} 
 
 
 
//屏蔽按键 
 
<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> 
<script language="Javascript"><!-- 
  //屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键 
  //Author: meizz(梅花雨) 2002-6-18 
function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键 
function window.onhelp(){return false} //屏蔽F1帮助 
function document.onkeydown() 
{ 
  if ((window.event.altKey)&& 
      ((window.event.keyCode==37)||   //屏蔽 Alt+ 方向键 ← 
       (window.event.keyCode==39)))   //屏蔽 Alt+ 方向键 → 
  { 
     alert("不准你使用ALT+方向键前进或后退网页!"); 
     event.returnValue=false; 
  } 
     /* 注:这还不是真正地屏蔽 Alt+ 方向键, 
     因为 Alt+ 方向键弹出警告框时,按住 Alt 键不放, 
     用鼠标点掉警告框,这种屏蔽方法就失效了。以后若 
     有哪位高手有真正屏蔽 Alt 键的方法,请告知。*/ 
  if ((event.keyCode==8)  ||                 //屏蔽退格删除键 
      (event.keyCode==116)||                 //屏蔽 F5 刷新键 
      (event.ctrlKey && event.keyCode==82)){ //Ctrl + R 
     event.keyCode=0; 
     event.returnValue=false; 
     } 
  if (event.keyCode==122){event.keyCode=0;event.returnValue=false;}  //屏蔽F11 
  if (event.ctrlKey && event.keyCode==78) event.returnValue=false;   //屏蔽 Ctrl+n 
  if (event.shiftKey && event.keyCode==121)event.returnValue=false;  //屏蔽 shift+F10 
  if (window.event.srcElement.tagName == "A" && window.event.shiftKey)  
      window.event.returnValue = false;             //屏蔽 shift 加鼠标左键新开一网页 
  if ((window.event.altKey)&&(window.event.keyCode==115))             //屏蔽Alt+F4 
  { 
      window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px"); 
      return false; 
  } 
} 
</script> 
屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键 
</body> 
</html> 
//屏蔽打印 
<style> 
@media print{ 
* {display:none} 
} 
</style> 
//移动的图层,拖动 
1.<span style='position:absolute;width:200;height:200;background:red' onmousedown=MouseDown(this) onmousemove=MouseMove() onmouseup=MouseUp()>meizz</span> 
<script language=javascript> 
var Obj; 
function MouseDown(obj) 
{ 
  Obj=obj; 
  Obj.setCapture(); 
  Obj.l=event.x-Obj.style.pixelLeft; 
  Obj.t=event.y-Obj.style.pixelTop; 
} 
function MouseMove() 
{ 
  if(Obj!=null) 
  { 
    Obj.style.left = event.x-Obj.l; 
    Obj.style.top = event.y-Obj.t; 
  } 
} 
function MouseUp() 
{ 
  if(Obj!=null) 
  { 
    Obj.releaseCapture(); 
    Obj=null; 
  } 
} 
</script> 
2. 
<div id="myDiv" src="logo.gif" ondrag="doDrag();" onmouseover="this.style.cursor='hand'" style="position:absolute;left=100;top=100;" onmousedown="doMouseDown();"> 
<a href="#" onclick="return false"><h1>wlecome</h1></a> 
</div> 
<script language="JavaScript" type="text/javascript"> 
var orgMouseX; 
var orgMouseY; 
var orgObjX; 
var orgObjY; 
function doDrag() 
{ 
var myObject=document.all.myDiv; 
var x=event.clientX; 
var y=event.clientY; 
myObject.style.left=x-(orgMouseX-orgObjX); 
myObject.style.top=y-(orgMouseY-orgObjY); 
  
} 
function doMouseDown() 
{ 
orgMouseX=event.clientX; 
orgMouseY=event.clientY; 
orgObjX=parseInt(document.all.myDiv.style.left); 
orgObjY=parseInt(document.all.myDiv.style.top); 
} 
</script> 
  
//文档状态改变 
<iframe src="a.html" id="f" name="f" scrolling="no" frameborder=0 marginwidth=0 marginheight=0></iframe> 
<script> 
var doc=window.frames["f"].document; 
function s(){ 
 if (doc.readyState=="complete"){ 
  document.all.f.style.height=doc.body.scrollHeight 
  document.all.f.style.width=doc.body.scrollWidth 
 } 
} 
doc.onreadystatechange=s 
</script> 
//刷新后不变的文本框 
<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> 
 
//访问剪贴板 
(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"); 
 
//操作COOKIE 
function SetCookie(sName, sValue) 
{ 
 document.cookie = sName + "=" + escape(sValue) + "; "; 
} 
function GetCookie(sName) 
{ 
 var aCookie = document.cookie.split("; "); 
 for (var i=0; i < aCookie.length; i++) 
 { 
   
  var aCrumb = aCookie[i].split("="); 
  if (sName == aCrumb[0])  
  return unescape(aCrumb[1]); 
 } 
  
} 
function DelCookie(sName) 
{ 
document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;"; 
} 
//setTimeout增加参数 
<script> 
var _st = window.setTimeout; 
window.setTimeout = function(fRef, mDelay) { 
 if(typeof fRef == 'function'){ 
  var argu = Array.prototype.slice.call(arguments,2); 
  var f = (function(){ fRef.apply(null, argu); }); 
  return _st(f, mDelay); 
 } 
 return _st(fRef,mDelay); 
} 
function test(x){ 
 alert(x); 
} 
window.setTimeout(test,1000,'fason'); 
</script> 
//自定义的apply,call 
Function.prototype.apply = function (obj, argu) { 
 if (obj) obj.constructor.prototype._caller = this;  
 var argus = new Array(); 
 for (var i=0;i<argu.length;i++) 
  argus[i] = "argu[" + i + "]"; 
 var r; 
 eval("r = " + (obj ? ("obj._caller(" + argus.join(",") + ");") : ("this(" + argus.join(",") + ");"))); 
 return r; 
}; 
Function.prototype.call = function (obj) { 
 var argu = new Array(); 
 for (var i=1;i<arguments.length;i++) 
  argu[i-1] = arguments[i]; 
 return this.apply(obj, argu); 
};        
//下载文件 
function DownURL(strRemoteURL,strLocalURL) 
{ 
 try 
 { 
  var xmlHTTP=new ActiveXObject("Microsoft.XMLHTTP"); 
  xmlHTTP.open("Get",strRemoteURL,false); 
  xmlHTTP.send(); 
  var adodbStream=new ActiveXObject("ADODB.Stream"); 
  adodbStream.Type=1;//1=adTypeBinary 
  adodbStream.Open(); 
  adodbStream.write(xmlHTTP.responseBody); 
  adodbStream.SaveToFile(strLocalURL,2); 
  adodbStream.Close(); 
  adodbStream=null; 
  xmlHTTP=null; 
   
 } 
 catch(e) 
 { 
  window.confirm("下载URL出错!"); 
 } 
 //window.confirm("下载完成."); 
} 
//检验连接是否有效 
function getXML(URL)  
{ 
 var xmlhttp = new ActiveXObject("microsoft.xmlhttp"); 
 xmlhttp.Open("GET",URL, false);  
 try 
 {  
  xmlhttp.Send(); 
 } 
 catch(e){} 
 finally  
 { 
  var result = xmlhttp.responseText; 
  if(result)  
  { 
   if(xmlhttp.Status==200) 
   { 
    return(true); 
   } 
   else  
   { 
    return(false); 
   } 
  } 
  else  
  { 
   return(false); 
  } 
 } 
} 
//POST代替FORM 
<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
 
 
//组件是否安装 
isComponentInstalled("{6B053A4B-A7EC-4D3D-4567-B8FF8A1A5739}", "componentID")) 
//检查网页是否存在 
function CheckURL(URL) 
{ 
  var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
  xmlhttp.Open("GET",URL, false); 
  try 
  {  
    xmlhttp.Send();  
    var result = xmlhttp.status; 
  } 
  catch(e) {return(false); } 
  if(result==200) 
  {  
    return true; 
  } 
  xmlhttp = null; 
  return false; 
} 
//连接数据库 
<script language="javascript"> 
  //用 JavaScript 写服务器端连接数据库的代码示例 
  var conn = new ActiveXObject("ADODB.Connection"); 
  conn.Open("Provider=SQLOLEDB.1; Data Source=localhost; User ID=sa; " 
    +"Password=; Initial Catalog=pubs"); 
  var rs = new ActiveXObject("ADODB.Recordset"); 
  var sql="select * from authors"; 
  rs.open(sql, conn); 
 shtml = "<table width='100%' border=1>"; 
 shtml +="<tr bgcolor='#f4f4f4'><td>au_id</td><td>au_lname</td><td>au_fname</td><td>phone</td><td>address</td><td> city</td><td>state</td><td>zip</td></tr>"; 
  while(!rs.EOF) 
  { 
 shtml += "<tr><td>" + rs("au_id") + "</td><td>" + rs("au_lname") + "</td><td>" + rs("au_fname") + "</td><td>" + rs("phone") + "</td><td>" + rs("address") + "</td><td>" + rs("city") + "</td><td>" + rs("state") + "</td><td>" + rs("zip") + "</td></tr>"; 
 rs.moveNext; 
  } 
  shtml += "</table>"; 
  document.write(shtml); 
  rs.close();  
  rs = null;  
  conn.close();  
  conn = null; 
</script> 
//使用数据岛 
<html> 
<body> 
srno:<input type=text datasrc=#xmldate DataFLD=srno size="76"><BR> 
times:<input type=text datasrc=#xmldate DataFLD=times size="76"><BR> 
<input id="first" TYPE=button value="<< 第一条记录" onclick="xmldate.recordset.moveFirst()"> 
<input id="prev" TYPE=button value="<上一条记录" onclick="xmldate.recordset.movePrevious()">   
<input id="next" TYPE=button value="下一条记录>" onclick="xmldate.recordset.moveNext()">   
<input id="last" TYPE=button value="最后一条记录>>" onclick="xmldate.recordset.moveLast()">    
<input id="Add" TYPE=button value="添加新记录" onclick="xmldate.recordset.addNew()">   
<XML ID="xmldate"> 
<infolist> 
<info ><srno>20041025-01</srno><times>null</times></info> 
<info ><srno>20041101-09</srno><times>2004年10月1日2点22分0秒</times></info> 
</infolist> 
</XML> 
</body> 
</html> 
//获得参数 
<body> 
<a href="javascript:location.href=location.href + '?a=1&b=2'">search</a> 
<script language="JavaScript"> 
<!-- 
var a = location.search.substr(1); 
if(a.length>0) 
{ 
 var re = /([^&]*?)\=([^&]*)/g 
 var s = a.match(re); 
 for(var i= 0;i<s.length;i++) 
 { 
  alert(s[i]); 
  alert(s[i].split("=")[1]); 
 } 
} 
//--> 
</script> 
</body> 
//可编辑SELECT 
<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>


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