javascript 实用代码

javascript实用代码大全  
 
 
Author:kafeichong PublishTime:2005-08-05 
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 
documents.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:[email protected]?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>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) 
{ 
documents.cookie = sName + "=" + escape(svalue) + "; "; 
} 
function GetCookie(sName) 
{ 
var aCookie = documents.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) 
{ 
documents.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> 

//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; 
} 
//书 

www.itpub.net/attachment.php?s=&postid=1894598 
www.wrclub.net/down/listdown.aspx?id=1341 


//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 

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"> 
<!-- 
//图片按比例缩放 
var flag=false; 
function DrawImage(ImgD){ 
var image=new Image(); 
var iwidth = 80; //定义允许图片宽度 
var iheight = 80; //定义允许图片高度 
image.src=ImgD.src; 
if(image.width>0 && image.height>0){ 
flag=true; 
if(image.width/image.height>= iwidth/iheight){ 
if(image.width>iwidth){ 
ImgD.width=iwidth; 
ImgD.height=(image.height*iwidth)/image.width; 
}else{ 
ImgD.width=image.width; 
ImgD.height=image.height; 
} 
ImgD.alt=image.width+"×"+image.height; 
} 
else{ 
if(image.height>iheight){ 
ImgD.height=iheight; 
ImgD.width=(image.width*iheight)/image.height; 
}else{ 
ImgD.width=image.width; 
ImgD.height=image.height; 
} 
ImgD.alt=image.width+"×"+image.height; 
} 
} 
} 
//--> 
</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> 

//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"> 
<!-- 
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.4.0"); 
var currNode; 
xmlDoc.async = false; 
xmlDoc.async = false; 
xmlDoc.loadXML("<TABLENAME> 你好你阿三 大法 司法等四 </TABLENAME>"); 
currNode = xmlDoc.documentElement; 

var s = currNode.xml; 
var r = /\<([^\>\s]*?)[^\>]*?\>([^\<]*?)\<\/\1\>/ 
var b = s.replace(r,"$2"); 
alert(b); 
//--> 
</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()"> 




 
 

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