js实用小技巧

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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<bodyoncontextmenu="returnfalse"ondragstart="returnfalse"onselectstart="returnfalse"onselect="document.selection.empty()"oncopy="document.selection.empty()"onbeforecopy="returnfalse"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&#13sdfs&#32"
获得时间所代表的微秒
var n1 = new Date("2004-10-10".replace(/-/g, "//")).getTime()
窗口是否关闭
win.closed
checkbox扁平
<input type=checkbox style="position: absolute; clip:rect(5px 15px 15px 5px)"><br>
获取选中内容
document.selection.createRange().duplicate().text
自动完成功能
<input type=text autocomplete=on>打开该功能
<input type=text autocomplete=off>关闭该功能
窗口最大化
<body 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

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

//特殊用途

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

//不缓存

<METAHTTP-EQUIV="pragma"CONTENT="no-cache">
<METAHTTP-EQUIV="Cache-Control"CONTENT="no-cache,must-revalidate">
<METAHTTP-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

<IMGSRC="mypicture.jpg"HEIGHT="100px"WIDTH="100px"GALLERYIMG="false">
or
<head>
<metahttp-equiv="imagetoolbar"content="no">
</head>

//无提示关闭

functionClose()
{
varua=navigator.userAgent
varie=navigator.appName=="MicrosoftInternetExplorer"?true:false
if(ie)
{
varIEversion=parseFloat(ua.substring(ua.indexOf("MSIE")+5,ua.indexOf(";",ua.indexOf("MSIE"))))
if(IEversion<5.5)
{
varstr='<objectid=noTipCloseclassid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">'
str+='<paramname="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)

<scriptlanguage="javascript">
functiongetoffset(e)
{
vart=e.offsetTop;
varl=e.offsetLeft;
while(e=e.offsetParent)
{
t+=e.offsetTop;
l+=e.offsetLeft;
}
varrec=newArray(1);
rec[0]=t;
rec[1]=l;
returnrec
}
</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

<objectid=minclassid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<paramname="Command"value="Minimize"></object>
<objectid=maxclassid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<paramname="Command"value="Maximize"></object>
<OBJECTid=closeclassid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">
<PARAMNAME="Command"value="Close"></OBJECT>
<inputtype=buttonvalue=最小化onclick=min.Click()>
<inputtype=buttonvalue=最大化onclick=max.Click()>
<inputtype=buttonvalue=关闭onclick=close.Click()>

//光标停在文字最后

<scriptlanguage="javascript">
functioncc()
{
vare=event.srcElement;
varr=e.createTextRange();
r.moveStart('character',e.value.length);
r.collapse(true);
r.select();
}
</script>
<inputtype=textname=text1value="123"onfocus="cc()">

//页面进入和退出的特效

进入页面<metahttp-equiv="Page-Enter"content="revealTrans(duration=x,transition=y)">
推出页面<metahttp-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

<metaname="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

<pstyle="page-break-after:always">page1</p>
<pstyle="page-break-after:always">page2</p>

//设置打印

<objectid="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>
<inputtype=buttonvalue=页面设置onclick="factory.printing.PageSetup()">
<inputtype=buttonvalue=打印预览onclick="factory.printing.Preview()">

<scriptlanguage=javascript>
functionwindow.onload()
{
//--advancedfeatures
factory.printing.SetMarginMeasure(2)//measuremarginsininches
factory.printing.SetPageRange(false,1,3)//needpagesfrom1to3
factory.printing.printer="HPDeskJet870C"
factory.printing.copies=2
factory.printing.collate=true
factory.printing.paperSize="A4"
factory.printing.paperSource="Manualfeed"
//--basicfeatures
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
}
functionPrint(frame){
factory.printing.Print(true,frame)//printwithprompt
}
</script>
<inputtype=buttonvalue="打印本页"onclick="factory.printing.Print(false)">
<inputtype=buttonvalue="页面设置"onclick="factory.printing.PageSetup()">
<inputtype=buttonvalue="打印预览"onclick="factory.printing.Preview()"><br>
<ahref="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
<stylemedia=print>
.Noprint{display:none;}
.PageNext{page-break-after:always;}
</style>
<objectid="WebBrowser"width=0height=0classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2">
</object>

<centerclass="Noprint">
<inputtype=buttonvalue=打印onclick=document.all.WebBrowser.ExecWB(6,1)>
<inputtype=buttonvalue=直接打印onclick=document.all.WebBrowser.ExecWB(6,6)>
<inputtype=buttonvalue=页面设置onclick=document.all.WebBrowser.ExecWB(8,1)>
</p>
<p><inputtype=buttonvalue=打印预览onclick=document.all.WebBrowser.ExecWB(7,1)>
</center>

//去掉打印时的页眉页脚

<scriptlanguage="JavaScript">
varHKEY_Root,HKEY_Path,HKEY_Key;
HKEY_Root="HKEY_CURRENT_USER";
HKEY_Path="//Software//Microsoft//InternetExplorer//PageSetup//";
//设置网页打印的页眉页脚为空
functionPageSetup_Null()
{
try
{
varWsh=newActiveXObject("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
functionPageSetup_Default()
{
try
{
varWsh=newActiveXObject("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>
<inputtype="button"value="清空页码"onclick=PageSetup_Null()>
<inputtype="button"value="恢复页码"onclick=PageSetup_Default()>

//浏览器验证

functioncheckBrowser()
{
this.ver=navigator.appVersion
this.dom=document.getElementById?1:0
this.ie6=(this.ver.indexOf("MSIE6")>-1&&this.dom)?1:0;
this.ie5=(this.ver.indexOf("MSIE5")>-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)
returnthis;
}

//计算内容宽和高

<SCRIPTlanguage="javascript">
functiontest(obj)
{
varrange=obj.createTextRange();
alert("内容区宽度:"+range.boundingWidth
+"px/r/n内容区高度:"+range.boundingHeight+"px");

}
</SCRIPT>
<BODY>
<Textareaid="txt"height="150">sdf</textarea><INPUTtype="button"value="计算内容宽度"onClick="test(txt)">
</BODY>

//无模式的提示框

functionmodelessAlert(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>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312">
<noscript><metahttp-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>
<scriptlanguage="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
functiondocument.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键
functionwindow.onhelp(){returnfalse}//屏蔽F1帮助
functiondocument.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");
returnfalse;
}
}
</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.<spanstyle='position:absolute;width:200;height:200;background:red'onmousedown=MouseDown(this)onmousemove=MouseMove()onmouseup=MouseUp()>meizz</span>
<scriptlanguage=javascript>
varObj;
functionMouseDown(obj)
{
Obj=obj;
Obj.setCapture();
Obj.l=event.x-Obj.style.pixelLeft;
Obj.t=event.y-Obj.style.pixelTop;
}
functionMouseMove()
{
if(Obj!=null)
{
Obj.style.left=event.x-Obj.l;
Obj.style.top=event.y-Obj.t;
}
}
functionMouseUp()
{
if(Obj!=null)
{
Obj.releaseCapture();
Obj=null;
}
}
</script>
2.
<divid="myDiv"src="logo.gif"ondrag="doDrag();"onmouseover="this.style.cursor='hand'"style="position:absolute;left=100;top=100;"onmousedown="doMouseDown();">
<ahref="#"onclick="returnfalse"><h1>wlecome</h1></a>
</div>
<scriptlanguage="JavaScript"type="text/javascript">
varorgMouseX;
varorgMouseY;
varorgObjX;
varorgObjY;
functiondoDrag()
{
varmyObject=document.all.myDiv;

varx=event.clientX;
vary=event.clientY;
myObject.style.left=x-(orgMouseX-orgObjX);
myObject.style.top=y-(orgMouseY-orgObjY);

}
functiondoMouseDown()
{
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

<iframesrc="a.html"id="f"name="f"scrolling="no"frameborder=0marginwidth=0marginheight=0></iframe>
<script>
vardoc=window.frames["f"].document;
functions(){
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>
<METANAME="save"CONTENT="history">
<STYLE>
.sHistory{behavior:url(#default#savehistory);}
</STYLE>
</HEAD>
<BODY>
<INPUTclass=sHistorytype=textid=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

functionSetCookie(sName,sValue)
{
document.cookie=sName+"="+escape(sValue)+";";
}
functionGetCookie(sName)
{
varaCookie=document.cookie.split(";");
for(vari=0;i<aCookie.length;i++)
{

varaCrumb=aCookie[i].split("=");
if(sName==aCrumb[0])
returnunescape(aCrumb[1]);
}

}
functionDelCookie(sName)
{
document.cookie=sName+"="+escape(sValue)+";expires=Fri,31Dec199923:59:59GMT;";
}

//setTimeout增加参数

//自定义的apply,call

Function.prototype.apply=function(obj,argu){
if(obj)obj.constructor.prototype._caller=this;
varargus=newArray();
for(vari=0;i<argu.length;i++)
argus[i]="argu["+i+"]";
varr;
eval("r="+(obj?("obj._caller("+argus.join(",")+");"):("this("+argus.join(",")+");")));
returnr;
};
Function.prototype.call=function(obj){
varargu=newArray();
for(vari=1;i<arguments.length;i++)
argu[i-1]=arguments[i];
returnthis.apply(obj,argu);
};

//下载文件

functionDownURL(strRemoteURL,strLocalURL)
{
try
{
varxmlHTTP=newActiveXObject("Microsoft.XMLHTTP");
xmlHTTP.open("Get",strRemoteURL,false);
xmlHTTP.send();
varadodbStream=newActiveXObject("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

functiongetXML(URL)
{
varxmlhttp=newActiveXObject("microsoft.xmlhttp");
xmlhttp.Open("GET",URL,false);
try
{
xmlhttp.Send();
}
catch(e){}
finally
{
varresult=xmlhttp.responseText;
if(result)
{
if(xmlhttp.Status==200)
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
}

//POST代替FORM

<SCRIPTlanguage="VBScript">
FunctionURLEncoding(vstrIn)
strReturn=""
Fori=1ToLen(vstrIn)
ThisChr=Mid(vStrIn,i,1)
IfAbs(Asc(ThisChr))<&HFFThen
strReturn=strReturn&ThisChr
Else
innerCode=Asc(ThisChr)
IfinnerCode<0Then
innerCode=innerCode+&H10000
EndIf
Hight8=(innerCodeAnd&HFF00)/&HFF
Low8=innerCodeAnd&HFF
strReturn=strReturn&"%"&Hex(Hight8)&"%"&Hex(Low8)
EndIf
Next
URLEncoding=strReturn
EndFunction
Functionbytes2BSTR(vIn)
strReturn=""
Fori=1ToLenB(vIn)
ThisCharCode=AscB(MidB(vIn,i,1))
IfThisCharCode<&H80Then
strReturn=strReturn&Chr(ThisCharCode)
Else
NextCharCode=AscB(MidB(vIn,i+1,1))
strReturn=strReturn&Chr(CLng(ThisCharCode)*&H100+CInt(NextCharCode))
i=i+1
EndIf
Next
bytes2BSTR=strReturn
EndFunction
dimstrA,oReq
strA=URLEncoding("submit1=Submit&text1=中文")
setoReq=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.sendstrA
msgboxbytes2BSTR(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

functionCheckURL(URL)
{
varxmlhttp=newActiveXObject("Microsoft.XMLHTTP");
xmlhttp.Open("GET",URL,false);
try
{
xmlhttp.Send();
varresult=xmlhttp.status;
}
catch(e){return(false);}
if(result==200)
{
returntrue;
}
xmlhttp=null;
returnfalse;
}

//连接数据库

<scriptlanguage="javascript">
//用JavaScript写服务器端连接数据库的代码示例
varconn=newActiveXObject("ADODB.Connection");
conn.Open("Provider=SQLOLEDB.1;DataSource=localhost;UserID=sa;"
+"Password=;InitialCatalog=pubs");
varrs=newActiveXObject("ADODB.Recordset");
varsql="select*fromauthors";
rs.open(sql,conn);
shtml="<tablewidth='100%'border=1>";
shtml+="<trbgcolor='#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：<inputtype=textdatasrc=#xmldateDataFLD=srnosize="76"><BR>
times：<inputtype=textdatasrc=#xmldateDataFLD=timessize="76"><BR>
<inputid="first"TYPE=buttonvalue="<<　第一条记录"onclick="xmldate.recordset.moveFirst()">
<inputid="prev"TYPE=buttonvalue="<上一条记录"onclick="xmldate.recordset.movePrevious()">
<inputid="next"TYPE=buttonvalue="下一条记录>"onclick="xmldate.recordset.moveNext()">
<inputid="last"TYPE=buttonvalue="最后一条记录>>"onclick="xmldate.recordset.moveLast()">
<inputid="Add"TYPE=buttonvalue="添加新记录"onclick="xmldate.recordset.addNew()">

<XMLID="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>
<ahref="javascript:location.href=location.href+'?a=1&b=2'">search</a>
<scriptlanguage="JavaScript">

</script>
</body>

//可编辑SELECT

<inputtype=textname=re_namestyle="width:100px;height:21px;font-size:10pt;"><spanstyle="width:18px;border:0pxsolidred;"><selectname="r00"style="margin-left:-100px;width:118px;background-color:#FFEEEE;"onChange="document.all.re_name.value=this.value;">
<optionvalue="1">11111111<option>
<optionvalue="2">222222</option>
<optionvalue="3">333333</option>
</select>
</span>

//设置光标位置

functiongetCaret(textbox)
{
varcontrol=document.activeElement;
textbox.focus();
varrang=document.selection.createRange();
rang.setEndPoint("StartToStart",textbox.createTextRange())
control.focus();
returnrang.text.length;
}
functionsetCaret(textbox,pos)
{
try
{
varr=textbox.createTextRange();
r.moveStart('character',pos);
r.collapse(true);
r.select();
}
catch(e)
{}
}
functionselectLength(textbox,start,len)
{
try
{
varr=textbox.createTextRange();

r.moveEnd('character',len-(textbox.value.length-start));
r.moveStart('character',start);

r.select();
}
catch(e)
{//alert(e.description)}
}
functioninsertAtCaret(textbox,text)
{
textbox.focus();
document.selection.createRange().text=text;
}

//页内查找

functionfindInPage(str)
{
vartxt,i,found,n=0;
if(str=="")
{
returnfalse;
}
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！");
}
}
returnfalse;
}

//书

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

//操作EXECL

<scriptlanguage="javascript">
functionjStartExcel(){
varxls=newActiveXObject("Excel.Application");
xls.visible=true;
varnewBook=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="FirstColumn,FirstCell";
newBook.Worksheets(1).Cells(2,1).value="FirstColumn,SecondCell";
newBook.Worksheets(1).Cells(1,2).value="SecondColumn,FirstCell";
newBook.Worksheets(1).Cells(2,2).value="SecondColumn,SecondCell";
newBook.Worksheets(1).Name="MyFirstWorkSheet";
}
</script>

//自定义提示条

<ahref="#"title="这是提示">tip</a>
<scriptLanguage="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("<styletype='text/css'id='defaultPopStyle'>");
document.write(".cPopText{background-color:#F8F8F5;color:#000000;border:1px#000000solid;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("<divid='dypopLayer'style='position:absolute;z-index:1000;'class='cPopText'></div>");

functionshowPopupText(){
varo=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
elsepopStyle="cPopText";
curShow=setTimeout("showIt()",tPopWait);
}
}
}
functionshowIt(){
dypopLayer.className=popStyle;
dypopLayer.innerHTML=sPop;
popWidth=dypopLayer.clientWidth;
popHeight=dypopLayer.clientHeight;
if(MouseX+12+popWidth>document.body.clientWidth)popLeftAdjust=-popWidth-24
elsepopLeftAdjust=0;
if(MouseY+12+popHeight>document.body.clientHeight)popTopAdjust=-popHeight-24
elsepopTopAdjust=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();
}
functionfadeOut(){
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);
}
}
functionfadeIn(){
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(){
varoSource=window.event.srcElement;
if(oSource.tagName!="DIV")
returnfalse;
varsel=document.selection;
if(sel!=null){
varrng=sel.createRange();
if(rng!=null)
rng.pasteHTML("<fontcolor=red>插入文字</font>");
}
}

//netscapte下操作xml

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

//判断键值

<html>
<metahttp-equiv="Content-Type"content="text/html;charset=gb2312">
<head>
<scriptlanguage="javascript">
varie=navigator.appName=="MicrosoftInternetExplorer"?true:false;

functionkeyDown(e)
{
if(!ie)
{
varnkey=e.which;
variekey='现在是ns浏览器';
varrealkey=String.fromCharCode(e.which);
}
if(ie)
{
variekey=event.keyCode;
varnkey='现在是ie浏览器';
varrealkey=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>
//JavascriptDocument.
<hr>
<center>
<h3>请按任意一个键。。。。</h3>
</center>
</body>
</html>

//禁止FSO

1.注销组件
regsvr32/uscrrun.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

<DIVSTYLE="width:120px;height:50px;border:1pxsolidblue;
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:clientCapsID="oClientCaps"style="{behavior:url(#default#clientcaps)}"/>
<SCRIPT>
varflash="";
WMPVersion=oClientCaps.getComponentVersion("{22D6F312-B0F6-11D0-94AB-0080C74C7E95}","ComponentID");
if(WMPVersion!=""){
flash="";
varversion=WMPVersion.split(",");
vari;
for(i=0;i<version.length;i++){
if(i!=0)
flash+=".";
flash+=version[i];
}
document.write("您的WindowsMediaPlayer版本是:"+flash+"<p>");
}
</SCRIPT>

//图象按比例

<scriptlanguage="JavaScript">

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

//细线SELECT

<spanstyle="border:1pxsolid#000000;position:absolute;overflow:hidden;">
<selectstyle="margin:-2px;">
<option>1111</option>
<option>11111111111111</option>
<option>111111111</option>
</select></span>

//Import

functionImport(){
for(vari=0;i<arguments.length;i++){
varfile=arguments[i];
if(file.match(//.js$/i))
document.write('<scripttype=/"text/javascript/"src=/"'+file+'/"></sc'+'ript>');
else
document.write('<styletype=/"text/css/">@import/"'+file+'/";</style>');
}
};

//js枚举

functiongetComputerName()
{
varobjWMIService=GetObject("Winmgmts:root/cimv2");
for(e=newEnumerator(objWMIService);!e.atEnd();e.moveNext())
{
vargetComputer=e.item();
returngetComputer.Name;
}
}

//条件编译

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

//取得innerText

<SCRIPTLANGUAGE="JavaScript">

</SCRIPT>

//mergeAttributes 复制所有读/写标签属性到指定元素。

<SCRIPT>
functionfnMerge(){
oSource.children[1].mergeAttributes(oSource.children[0]);
}
</SCRIPT>
<SPANID=oSource>
<DIV
ID="oDiv"
ATTRIBUTE1="true"
ATTRIBUTE2="true"
onclick="alert('click');"
onmouseover="this.style.color='#0000FF';"
onmouseout="this.style.color='#000000';"
>
Thisisasample<B>DIV</B>element.
</DIV>
<DIVID="oDiv2">
Thisisanothersample<B>DIV</B>element.
</DIV>
</SPAN>
<INPUT
TYPE="button"
VALUE="MergeAttributes"
onclick="fnMerge()"
>

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