常用javascript技巧

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flex

JavaScript 正则表达式网页游戏 IE Microsoft

//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)">

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)
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>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">

</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>

//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>");

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 

doc = new ActiveXObject("Msxml2.DOMDocument"); 
doc = new ActiveXObject("Microsoft.XMLDOM") 
->> 
doc = (new DOMParser()).parseFromString(sXML,'text/xml')

//判断键值
<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>
//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
<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>
//检测media play版本

<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[i];
    }
     document.write("您的Windows Media Player 版本是:"+flash+"<p>");
}
</SCRIPT>
//图象按比例

<script language="JavaScript">

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

//细线SELECT
<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>
<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[i]; 
  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

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>
/*@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

<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"
onclick="alert('click');"
onmouseover="this.style.color='#0000FF';"
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"
onclick="fnMerge()"
>
//检查链接是否有效
<a href="http://www.pconline.com.cn/welcome.asp " onclick="mm(this, 'http://www.pconline.com.cn/')">test</a>
<script language="javascript">
function getURL(url)
{
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.open("GET",url,false);
xmlhttp.send();
if (xmlhttp.readyState==4) return xmlhttp.Status==200;
return false;
}
function mm(e, url)
{
if(!getURL(e.href)) e.href = url;
}
</script>
//判断是否输入值再激活按钮
<script>
function check(){
s.disabled = (t1.value == '' || t2.value == '' || t3.value == '')
}
</script>
<input name="t1" onpropertychange="check();">
<input name="t2" onpropertychange="check();">
<input name="t3" onpropertychange="check();">
<input type="submit" name="s" disabled>

//屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键
<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、Ct, rl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键
</body>
</html>

//自定义热键（请按a）
<SCRIPT language="JavaScript">

</SCRIPT>
//取得字符串实际长度（汉字算两个字节，英文字母算一个字节）：
<script>
var s='中文，English';
alert("["+s+"]的长度:"+s.replace(/[^\x00-\xff]/gi,'xx').length)
</script>

//最好的简繁转换
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns="http://www.w3.org/1999/xhtml ">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>

<body>
<a id="StranLink">繁体</a>
网页代码检测中国DotNet俱乐部——首页点乃特学习.z6ionestabw3cn蓝色ideaMSDN 雷神竞技场中文站论坛 z987论坛 VeryCD游戏专区 Google
<script type="text/javascript">
//模仿語言包式的簡繁轉換功能插件！
//Edited by Stardy --2005-04-16 , Web :http://www.stardy.com , QQ:2885465
//Re-Edited by Stud --2005-10-10 , Web :http://www.metro.com.tw

var Default_isFT = 0 //默認是否繁體，0-簡體，1-繁體
var StranIt_Delay = 30 //翻譯延時毫秒（設這個的目的是讓網頁先流暢的顯現出來）

//－－－－－－－代碼開始，以下別改－－－－－－－
//轉換文本
function StranText(txt,toFT,chgTxt)
{
if(txt==""||txt==null)return ""
toFT=toFT==null?BodyIsFt:toFT
if(chgTxt)txt=txt.replace((toFT?"簡":"繁"),(toFT?"繁":"簡"))
if(toFT){return Simplized(txt)}
else {return Traditionalized(txt)}
}
//轉換對象，使用遞歸，逐層剝到文本
function StranBody(fobj)
{
if(typeof(fobj)=="object"){var obj=fobj.childNodes}
else
{
  var tmptxt=StranLink_Obj.innerHTML.toString()
  if(tmptxt.indexOf("簡")<0)
  {
   BodyIsFt=0
   StranLink_Obj.innerHTML=StranText(tmptxt,0,1)
   StranLink_Obj.title=StranText(StranLink_Obj.title,0,1)
  }
  else
  {
   BodyI

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网站升级实践 | javascript各个常用事件

2006-12-06 11:40
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