javascript 技巧参考大全
•   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" onselect
    start ="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   +=   "rn 网页可见区域宽:"+      document.body.clientWidth;
    s    +=   "rn 网页可见区域高:"+    document.body.clientHeight;
    s    +=   "rn 网页可见区域高:"+    document.body.offsetWeight    +"   (包括边线的宽)";


    s    +=   "rn 网页可见区域高:"+    document.body.offsetHeight    +"   (包括边线的宽)";


    s    +=   "rn 网页正文全文宽:"+    document.body.scrollWidth;
s    +=   "rn 网页正文全文高:"+   document.body.scrollHeight;
s    +=   "rn 网页被卷去的高:"+   document.body.scrollTop;
s    +=   "rn 网页被卷去的左:"+   document.body.scrollLeft;
s    +=   "rn 网页正文部分上:"+   window.screenTop;
s    +=   "rn 网页正文部分左:"+   window.screenLeft;
s    +=   "rn 屏幕分辨率的高:"+   window.screen.height;
s    +=   "rn 屏幕分辨率的宽:"+   window.screen.width;
s    +=   "rn 屏幕可用工作区高度:"+     window.screen.availHeight;
s    +=   "rn 屏幕可用工作区宽度:"+     window.screen.availWidth;
      //过滤数字


      //特殊用途


      //不缓存



//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',clipboar
dData.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',clipboar
dData.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').r
eplace(/[^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').r
eplace(/[^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


     //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, transit
ion=y)">
推出页面<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transiti
on=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



//打印分页



//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-11
D0-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="SoftwareMicrosoftInternet ExplorerPageSetup";
//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</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:heigh
t: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 C
trl+n
    if (event.shiftKey && event.keyCode==121)event.returnValue=false;   //屏蔽 s
hift+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;dialogheig
ht: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' onmous
edown=MouseDown(this) onmousemove=MouseMove() onmouseup=MouseUp()>meizz</spa
n>
<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.cu
rsor='hand'" style="position:absolute;left=100;top=100;" onmousedown="doMous
eDown();">
<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 marginwidt
h=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


      //访问剪贴板


      //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


        //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><t
d>" + 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>
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(Ne
xtCharCode))
                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

(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");
<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>
<p    style="page-break-after:always">page1</p>
<p    style="page-break-after:always">page2</p>
<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":
<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()>
<META HTTP-EQUIV="pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<META HTTP-EQUIV="expires" CONTENT="0">
<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)">
<input type=text onkeypress="return event.keyCode>=48&&event.keyCode<=57(thi
s.value.indexOf('.')<0?event.keyCode==46:false)" onpaste="return !
clipboardData.getData('text').match(/D/)" ondragenter="return false">

Javascript技巧参考大全

  • 1.
    javascript 技巧参考大全 • 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);
  • 2.
    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
  • 3.
    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" onselect start ="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/'">
  • 4.
    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 += "rn 网页可见区域宽:"+ document.body.clientWidth; s += "rn 网页可见区域高:"+ document.body.clientHeight; s += "rn 网页可见区域高:"+ document.body.offsetWeight +" (包括边线的宽)"; s += "rn 网页可见区域高:"+ document.body.offsetHeight +" (包括边线的宽)"; s += "rn 网页正文全文宽:"+ document.body.scrollWidth;
  • 5.
    s += "rn 网页正文全文高:"+ document.body.scrollHeight; s += "rn 网页被卷去的高:"+ document.body.scrollTop; s += "rn 网页被卷去的左:"+ document.body.scrollLeft; s += "rn 网页正文部分上:"+ window.screenTop; s += "rn 网页正文部分左:"+ window.screenLeft; s += "rn 屏幕分辨率的高:"+ window.screen.height; s += "rn 屏幕分辨率的宽:"+ window.screen.width; s += "rn 屏幕可用工作区高度:"+ window.screen.availHeight; s += "rn 屏幕可用工作区宽度:"+ window.screen.availWidth; //过滤数字 //特殊用途 //不缓存 //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',clipboar dData.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',clipboar dData.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').r eplace(/[^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').r eplace(/[^d]/g,''))" //消除图像工具栏 <IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="false"> or <head>
  • 6.
    <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);
  • 7.
    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 //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, transit ion=y)"> 推出页面<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transiti on=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
  • 8.
      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 //打印分页 //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
  • 9.
    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-11 D0-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
  • 10.
    ,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="SoftwareMicrosoftInternet ExplorerPageSetup"; //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;
  • 11.
    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</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:heigh t: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>
  • 12.
    <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 C trl+n if (event.shiftKey && event.keyCode==121)event.returnValue=false; //屏蔽 s hift+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;dialogheig ht:1px"); return false; } }
  • 13.
    </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' onmous edown=MouseDown(this) onmousemove=MouseMove() onmouseup=MouseUp()>meizz</spa n> <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.cu
  • 14.
    rsor='hand'" style="position:absolute;left=100;top=100;" onmousedown="doMous eDown();"> <ahref="#" 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 marginwidt h=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>
  • 15.
    //刷新后不变的文本框 //访问剪贴板 //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>
  • 16.
    //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!"); }
  • 17.
    //window.confirm("下载完成."); } //检验连接是否有效 //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) {
  • 18.
    shtml += "<tr><td>"+ rs("au_id") + "</td><td>" + rs("au_lname") + "</td><t d>" + 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>
  • 19.
    <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> 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);
  • 20.
    } 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(Ne xtCharCode)) i = i + 1
  • 21.
    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 (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"); <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> <p style="page-break-after:always">page1</p> <p style="page-break-after:always">page2</p> <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":
  • 22.
    <object id=min classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <paramname="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()> <META HTTP-EQUIV="pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> <META HTTP-EQUIV="expires" CONTENT="0"> <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)"> <input type=text onkeypress="return event.keyCode>=48&&event.keyCode<=57(thi s.value.indexOf('.')<0?event.keyCode==46:false)" onpaste="return ! clipboardData.getData('text').match(/D/)" ondragenter="return false">