【图】网页教学网整理的JS技巧代码

相关文章：网页教学网整理的Javascript的技巧代码

//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

//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
                                                 + "pxrn内容区高度: " + range.boundingHeight + "px");

}
/SCRIPT
BODY
Textarea id="txt" height="150"sdf/textareaINPUT 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"
noscriptmeta 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

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"h1wlecome/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

//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;iargu.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;iarguments.length;i++)
argu[i-1] = arguments[i];
return this.apply(obj, argu);
};

//下载文件

//检验连接是否有效

//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

//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'tdau_id/tdtdau_lname/tdtdau_fname/tdtdphone/tdtdaddress/tdtd city/tdtdstate/tdtdzip/td/tr";
while(!rs.EOF)
{
shtml += "trtd" + rs("au_id") + "/tdtd" + rs("au_lname") + "/tdtd" + rs("au_fname") + "/tdtd" + rs("phone") + "/tdtd" + rs("address") + "/tdtd" + rs("city") + "/tdtd" + rs("state") + "/tdtd" + 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 srno20041025-01/srnotimesnull/times/info
info srno20041101-09/srnotimes2004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.length0)
{
var re = /([^&]*？)=([^&]*)/g
var s = a.match(re);
for(var i= 0;is.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"11111111option
                option value="2"222222/option
                option value="3"333333/option
              /select
              /span

//设置光标位置

//页内查找

//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+popWidthdocument.body.clientWidth) popLeftAdjust=-popWidth-24
else popLeftAdjust=0;
if(MouseY+12+popHeightdocument.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.opacitypopOpacity) {
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.opacity0) {
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_ROOTScripting.FileSystemObject
Scripting.FileSystemObject
3.对于使用object的用户，修改HKEY_CLASSES_ROOTScripting.

//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.width0 && image.height0){
flag=true;
if(image.width/image.height= iwidth/iheight){
if(image.widthiwidth){
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.heightiheight){
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;"
option1111/option
option11111111111111/option
option111111111/option
/select/span

//Import

function Import() {
for( var i=0; iarguments.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:rootcimv2");
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_version5)
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 BDIV/B element.
/DIV
DIV ID="oDiv2"
This is another sample BDIV/B element.
/DIV
/SPAN
INPUT
TYPE="button"
VALUE="Merge Attributes"
onclick="fnMerge()"

检查链接是否有效

a href=http://www.webjx.com onclick="mm(this, 'http://www.webjx.com/')"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

自定义热键（请按a）

自定义热键（请按a）
SCRIPT language="JavaScript"
!--
var hotkey=97
var destination="http://www.webjx.com"
if (document.layers)
document.captureEvents(Event.KEYPRESS)
function backhome(e){
if (document.layers){
if (e.which==hotkey)
window.location=destination
}
else if (document.all){
if (event.keyCode==hotkey)
window.location=destination
}
}
document.onkeypress=backhome
//--
/SCRIPT

下面的是用javascript传递参数。如果本文件为test.htm，如果访问 test.htm？12 则javascript会得到？后的值并用document.all替换iframe的src值。

iframe height="750" width="760" scrolling="no" src="view.jsp" id="u" frameborder="0"/iframe
script language="javascript"
var url=window.location.href;
var s=url.indexOf("？");
if(s!=-1)
{
    var src=url.substring(s+1);
    document.all.u.src="view.jsp？id="+src;

}
/script