javascript 应用小技巧方法汇总_Javascript教程-查字典教程网

javascript 在前端应用体验小技巧继续积累。

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 根据宽度换行自动刷新 <meta HTTP-EQUIV="refresh" CONTENT="8;URL=http://c98.yeah.net"> 简单邮件 <a href="mailto:aaa@bbb.com?subject=ccc&body=xxxyyy"> 快速转到位置 obj.scrollIntoView(true) 锚 <a name="first"> <a href="#first">anchors</a> 网页传递参数 location.search(); 可编辑 obj.contenteditable=true 执行菜单命令 obj.execCommand 双字节字符 /[^x00-xff]/ 汉字 /[u4e00-u9fa5]/ 让英文字符串超出表格宽度自动换行word-wrap: break-word; word-break: break-all; 透明背景 <IFRAME src="1.htm" width=300 height=180 allowtransparency></iframe> 获得style内容 obj.style.cssText HTML标签 document.documentElement.innerHTML 第一个style标签 document.styleSheets[0] style标签里的第一个样式 document.styleSheets[0].rules[0] 防止点击空链接时，页面往往重置到页首端。 <a href="javascript:function()">word</a> 上一网页源 asp: request.servervariables("HTTP_REFERER") javascript: document.referrer 释放内存 CollectGarbage(); 禁止右键document.oncontextmenu = function() { return false;} 禁止保存 <noscript><iframe src="*.htm"></iframe></noscript> 禁止选取<body oncontextmenu="return false" ondragstart="return false" onselectstart ="return false" onselect="document.selection.empty()" oncopy="document.selection.empty()" onbeforecopy="return false"onmouseup="document.selection.empty()> 禁止粘贴 <input type=text onpaste="return false"> 地址栏图标 <link rel="Shortcut Icon" href="favicon.ico"> favicon.ico 名字最好不变16*16的16色,放虚拟目录根目录下收藏栏图标 <link rel="Bookmark" href="favicon.ico"> 查看源码 <input type=button value=查看网页源代码> 关闭输入法 <input> 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" 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><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"))) 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

复制代码代码如下:<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

复制代码代码如下:<input type=button value=导入收藏夹> <input type=button value=导出收藏夹> <input type=button value=整理收藏夹>

//不缓存

复制代码代码如下:<META HTTP-EQUIV="pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">

//正则匹配

复制代码代码如下: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

复制代码代码如下:<IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="false"> or <head>

//无提示关闭

复制代码代码如下: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)

复制代码代码如下:<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

复制代码代码如下:<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>

//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

//打印分页

//设置打印

//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;}<> .PageNext{page-break-after: always;}<> </style> <object id="WebBrowser" width=0 height=0 classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2"> </object> <center > <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

//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"> </BODY>

//无模式的提示框

function modelessAlert(Msg) { window.showModelessDialog("javascript:alert(""+escape(Msg)+"");window.close();","","status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;"); }

//屏蔽按键

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <noscript><meta http-equiv="refresh" content="0;url=about:noscript"></noscript> <title>屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键</title> </head> <body> <script language="Javascript"><!-- //屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键 //Author: meizz(梅花雨) 2002-6-18 function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键 function window.onhelp(){return false} //屏蔽F1帮助 function document.onkeydown() { if ((window.event.altKey)&& ((window.event.keyCode==37)|| //屏蔽 Alt+ 方向键 ← (window.event.keyCode==39))) //屏蔽 Alt+ 方向键 → { alert("不准你使用ALT+方向键前进或后退网页！"); event.returnValue=false; } /* 注：这还不是真正地屏蔽 Alt+ 方向键，因为 Alt+ 方向键弹出警告框时，按住 Alt 键不放，用鼠标点掉警告框，这种屏蔽方法就失效了。以后若有哪位高手有真正屏蔽 Alt 键的方法，请告知。*/ if ((event.keyCode==8) || //屏蔽退格删除键 (event.keyCode==116)|| //屏蔽 F5 刷新键 (event.ctrlKey && event.keyCode==82)){ //Ctrl + R event.keyCode=0; event.returnValue=false; } if (event.keyCode==122){event.keyCode=0;event.returnValue=false;} //屏蔽F11 if (event.ctrlKey && event.keyCode==78) event.returnValue=false; //屏蔽 Ctrl+n if (event.shiftKey && event.keyCode==121)event.returnValue=false; //屏蔽 shift+F10 if (window.event.srcElement.tagName == "A" && window.event.shiftKey) window.event.returnValue = false; //屏蔽 shift 加鼠标左键新开一网页 if ((window.event.altKey)&&(window.event.keyCode==115)) //屏蔽Alt+F4 { window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px"); return false; } } </script> 屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键 </body>

</html>

//屏蔽打印 <style> @media print{ * {display:none} } </style>

//移动的图层，拖动

1.<span 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'" onmousedown="doMouseDown();"> <a href="#"><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

//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 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

复制代码代码如下:<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

复制代码代码如下: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 " + 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

复制代码代码如下: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

复制代码代码如下: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

复制代码代码如下:<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

复制代码代码如下: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

复制代码代码如下:<script language="javascript"> //用 JavaScript 写服务器端连接数据库的代码示例 var conn = new ActiveXObject("ADODB.Connection"); conn.Open("Provider=SQLOLEDB.1; Data Source=localhost; User ID=sa; "

+"Password=; Initial Catalog=pubs");

var rs = new ActiveXObject("ADODB.Recordset"); var sql="select * from authors"; rs.open(sql, conn);

shtml = "<table width='100%' border=1>";

shtml +="<tr bgcolor='#f4f4f4'><td>au_id</td><td>au_lname</td><td>au_fname</td><td>phone</td><td>address</td><td> city</td><td>state</td><td>zip</td></tr>";

while(!rs.EOF) {

shtml += "<tr><td>" + rs("au_id") + "</td><td>" + rs("au_lname") + "</td><td>" + rs("au_fname") + "</td><td>" + rs("phone") + "</td><td>" + rs("address") + "</td><td>" + rs("city") + "</td><td>" + rs("state") + "</td><td>" + rs("zip") + "</td></tr>"; rs.moveNext;

} shtml += "</table>";

document.write(shtml); rs.close(); rs = null; conn.close(); conn = null; </script>

//使用数据岛

复制代码代码如下:<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">

</infolist> </XML> </body> </html>

//获得参数

复制代码代码如下:<body>

<a href="javascript:location.href=location.href + '">search</a>

<!-- 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

复制代码代码如下:<input type=text name=re_name><span><select name="r00" onChange="document.all.re_name.value=this.value;">

</select> </span>

//设置光标位置

复制代码代码如下:function getCaret(textbox) { var control = document.activeElement;

textbox.focus(); var rang = document.selection.createRange();

rang.setEndPoint("StartToStart",textbox.createTextRange())

control.focus(); return rang.text.length; } function setCaret(textbox,pos) { try

{ var r =textbox.createTextRange();

r.moveStart('character',pos); r.collapse(true); r.select(); } catch(e) {} } function selectLength(textbox,start,len) {

try { var r =textbox.createTextRange();

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

r.moveStart('character',start); r.select(); } catch(e) {//alert(e.description)} } function insertAtCaret(textbox,text) {

textbox.focus(); document.selection.createRange().text = text; }

//页内查找

复制代码代码如下:function findInPage(str) { var txt, i, found,n = 0; if (str == "")

{ return false; }

txt = document.body.createTextRange();

for (i = 0; i <= n && (found = txt.findText(str)) != false; i++) { txt.moveStart("character", 1); txt.moveEnd("textedit"); } if (found) { txt.moveStart("character", -1); txt.findText(str);

txt.select(); txt.scrollIntoView(); n++; } else

{ if (n > 0) {

n = 0; findInPage(str); } else {

alert(str + "... 您要找的文字不存在。n n请试着输入页面中的关键字再次查找！");

} } return false; }

//操作EXECL

复制代码代码如下:<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'></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 pop; curShow=setTimeout("showIt()",tPopWait); } } } function showIt(){ dypopLayer.className=popStyle; dypopLayer.innerHTML=sPop; popWidth=dypopLayer.clientWidth; popHeight=dypopLayer.clientHeight; if(MouseX+12+popWidth>document.body.clientWidth) popLeftAdjust=-popWidth-24 else popLeftAdjust=0; if(MouseY+12+popHeight>document.body.clientHeight) popTopAdjust=-popHeight-24 else popTopAdjust=0; dypopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftAdjust; dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust; dypopLayer.style.filter="Alpha(Opacity=0)"; fadeOut(); } function fadeOut(){ if(dypopLayer.filters.Alpha.opacity<popOpacity) { dypopLayer.filters.Alpha.opacity+=showPopStep; tFadeOut=setTimeout("fadeOut()",1); } else { dypopLayer.filters.Alpha.opacity=popOpacity; tFadeWaiting=setTimeout("fadeIn()",tPopShow); } } function fadeIn(){ if(dypopLayer.filters.Alpha.opacity>0) { dypopLayer.filters.Alpha.opacity-=1; tFadeIn=setTimeout("fadeIn()",1); } } document.onmouseover=showPopupText; </script>

//插入文字

复制代码代码如下: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

复制代码代码如下:<html>

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>

<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" />

<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

//细线SELECT

//Import

function Import() { for( var i=0; i<arguments.length; i++ ) { var file = arguments[i]; if ( file.match(/.js$/i)) document.write('<script type="text/javascript" src="' + file + '"></sc' + 'ript>'); else document.write('<style type="text/css">@import "' + file + '" ;</style>'); } };

//js枚举

function getComputerName() { var objWMIService = GetObject("Winmgmts:rootcimv2"); for(e = new Enumerator(objWMIService) ; !e.atEnd() ; e.moveNext()) { var getComputer = e.item(); return getComputer.Name; } }

//条件编译

//取得innerText

<SCRIPT LANGUAGE="JavaScript">  </SCRIPT>

//mergeAttributes 复制所有读/写标签属性到指定元素。

<SCRIPT> function fnMerge(){ oSource.children[1].mergeAttributes(oSource.children[0]); } </SCRIPT> <SPAN ID=oSource> <DIV ID="oDiv" ATTRIBUTE1="true" ATTRIBUTE2="true" onmouseover="this.style.color='#0000FF';" onmouseout="this.style.color='#000000';" > This is a sample <B>DIV</B> element. </DIV> <DIV ID="oDiv2"> This is another sample <B>DIV</B> element. </DIV> </SPAN> <INPUT TYPE="button" VALUE="Merge Attributes" >

以上所述就是本文的全部内容了，希望大家能够喜欢。