📄 javascript 技巧大全.htm
字号:
<br>191.加注音
<RUBY>
基准文本
<RT>注音文本
</RUBY>//
<br>192.加删除线
<S>此文本将带删除线显示。</S>//
<br>193.取frame中的event事件
document.frames("workspace").event.keyCode//
<br>194.是弹出方法的定义
String.prototype.trim=function()
{
return this.replace(/(^\s*)|(\s*$)/g, "");
}
alert(" ".trim)//
<br>195.防止网页被包含
if (window != window.top)
top.location.href = location.href;//
<br>196.让网页一直在frame里面
if(window==window.top)
{
document.body.innerHTML="<center><h1>请通过正常方式访问本页面！</h1></center>";
//window.close();
}//
<br>197.加为首页
<SCRIPT>
function fnSet(){
oHomePage.setHomePage(location.href);
event.returnValue = false;
}
</SCRIPT>
<IE:HOMEPAGE ID="oHomePage" style="behavior:url(#default#homepage)"/>//
<br>198.xml数据岛操作
<HTML>
<HEAD><Title>HTML中的数据岛中的记录集</Title></HEAD>
<body bkcolor=#EEEEEE text=blue bgcolor="#00FFFF">
<Table align=center width="100%" ID="Table6"><TR><TD align="center">
<h5><b><font size="4" color="#FF0000">HTML中的XML数据岛记录编辑与添加 </font></b></h5>
</TD></TR></Table>
<HR>
酒店名称：<input type=text datasrc=#theXMLisland DataFLD=NAME size="76" ID="Text18" NAME="Text18"><BR>
地址：<input type=text datasrc=#theXMLisland DataFLD=Address size="76" ID="Text19" NAME="Text19"><BR>
主页：<input type=text datasrc=#theXMLisland DataFLD=HomePage size="76" ID="Text20" NAME="Text20"><BR>
电子邮件：<input type=text datasrc=#theXMLisland DataFLD=E-Mail size="76" ID="Text21" NAME="Text21"><BR>
电话：<input type=text datasrc=#theXMLisland DataFLD=TelePhone size="76" ID="Text22" NAME="Text22"><BR>
级别：<input type=text datasrc=#theXMLisland DataFLD=Grade size="76" ID="Text23" NAME="Text23"><HR>
<input id="first" TYPE=button value="<< 第一条记录" onclick="theXMLisland.recordset.moveFirst()" NAME="first">
<input id="prev" TYPE=button value="<上一条记录" onclick="theXMLisland.recordset.movePrevious()" NAME="prev">
<input id="next" TYPE=button value="下一条记录>" onclick="theXMLisland.recordset.moveNext()" NAME="next">
<input id="last" TYPE=button value="最后一条记录>>" onclick="theXMLisland.recordset.moveLast()" NAME="last">
<input id="Add" TYPE=button value="添加新记录" onclick="theXMLisland.recordset.addNew()" NAME="Add">
<XML ID="theXMLisland">
<HotelList>
<Hotel>
<Name>四海大酒店</Name>
<Address>海魂路1号</Address>
<HomePage>www.sihaohotel.com.cn</HomePage>
<E-Mail>master@sihaohotel.com.cn</E-Mail>
<TelePhone>(0989)8888888</TelePhone>
<Grade>五星级</Grade>
</Hotel>
<Hotel>
<Name>五湖宾馆</Name>
<Address>东平路99号</Address>
<HomePage>www.wuhu.com.cn</HomePage>
<E-Mail>web@wuhu.com.cn</E-Mail>
<TelePhone>(0979)1111666</TelePhone>
<Grade>四星级</Grade>
</Hotel>
<Hotel>
<Name>“大沙漠”宾馆</Name>
<Address>留香路168号</Address>
<HomePage>www.dashamohotel.com.cn</HomePage>
<E-Mail>master@dashamohotel.com.cn</E-Mail>
<TelePhone>(0989)87878788</TelePhone>
<Grade>五星级</Grade>
</Hotel>
<Hotel>
<Name>“画眉鸟”大酒店</Name>
<Address>血海飘香路2号</Address>
<HomePage>www.throstlehotel.com.cn</HomePage>
<E-Mail>chuliuxiang@throstlehotel.com.cn</E-Mail>
<TelePhone>(099)9886666</TelePhone>
<Grade>五星级</Grade>
</Hotel>
</HotelList>
</XML>
</body>
</HTML> //xml数据岛中添加记录
-------------------------------
The following list is a sample of the properties and methods that you use to access nodes in an XML
document.
Property/ Method Description
XMLDocument Returns a reference to the XML Document Object Model (DOM) exposed by the object.
documentElement Returns the document root of the XML document.
childNodes Returns a node list containing the children of a node (if any).
item Accesses individual nodes within the list through an index. Index values are zero-based, so
item(0) returns the first child node.
text Returns the text content of the node.
The following code shows an HTML page containing an XML data island. The data island is contained within
the <XML> element.
<HTML>
<HEAD>
<TITLE>HTML with XML Data Island</TITLE>
</HEAD>
<BODY>
<P>Within this document is an XML data island.</P>
<XML ID="resortXML">
<resorts>
<resort code='1'>Adventure Works</resort>
<resort>Alpine Ski House</resort>
</resorts>
</XML>
</BODY>
</HTML>
For an example, you can cut and paste this sample line of code:
resortXML.XMLDocument.documentElement.childNodes.item(1).text//读取页面上的XML数据岛中的数据
resortXML.documentElement.childNodes.item(0).getAttribute("code")//读取页面上的XML数据岛中的数据
resortXML.documentElement.childNodes[0].getAttribute("code")//读取页面上的XML数据岛中的数据
<br>199.模式窗口
父窗口
var url="aaa.jsp";
var
data=showModalDialog(url,null,"dialogHeight:400px;dialogHeight:600px;center:yes;help:No;status:no;resizable:Yes;edge:sunken");
if(data)
alert(data.value);
子窗口
var data=new Object();
data.value1="china";
window.returnValue=data;
window.close();
<br>200.动态设置事件，带参数
<INPUT TYPE="text" NAME="a1" ID="Text24">
<SCRIPT LANGUAGE="JavaScript">
<!--
function hah(para)
{
alert(para)
}
a1.onclick=function()
{
hah('canshu ')
}
//a1.attachEvent("onclick",function(){hah('参数')});
//-->
</SCRIPT>//
<br>201.将url转化为16进制形式
var ret = '';
for(var i=0; i < str.length; i++)
{
var ch = str.charAt(i);
var code = str.charCodeAt(i);
if(code < 128 && ch != '[' && ch != '\'' && ch != '=')
{
ret += ch;
}
else
{
ret += "[" + code.toString(16) + "]";
}
}
return ret;//
<br>202.打开新的窗口并将新打开的窗口设置为活动窗口
var newWin=window.open("xxxx");
newWin.focus();//
<br>203.容错脚本
JS中遇到脚本错误时不做任何操作:window.onerror = doNothing;
指定错误句柄的语法为:window.onerror = handleError
function handleError(message, URI, line)
{// 提示用户，该页可能不能正确回应
return true; // 这将终止默认信息
}//在页面出错时进行操作
<br>204.JS中的窗口重定向:
window.navigate("http://www.sina.com.cn");//
<br>205.防止链接文字折行
document.body.noWrap=true;//
<br>208.进行页面放大
<P onmouseover="this.style.zoom='200%'" onmouseout="this.style.zoom='normal'">
sdsdsdsdsdsdsdsds
</p>//
<br>209.放置在页面的最右边<input type="text" value='放置页面最右' style="float:right" ID="Text25" NAME="Text25">//
<br>210.通过style来控制隔行显示不同颜色
<style>
tr{
bgcolor:expression(this.bgColor=((this.rowIndex)%2==0 )? 'white' : 'yellow');
}
</style>
<table id="oTable" width="100" border="1" style="border-collapse:collapse;">
<tr><td> </td></tr>
<tr><td> </td></tr>
<tr><td> </td></tr>
<tr><td> </td></tr>
<tr><td> </td></tr>
</table>//
<br>211.全屏最大化
newwindow=window.open("","","scrollbars")
if (document.all)
{
newwindow.moveTo(0,0)
newwindow.resizeTo(screen.width,screen.height)
}//
<br>212.根据名字解析xml中的节点值
var XMLDoc=new ActiveXObject("MSXML");
XMLDoc.url="d:/abc.xml";
aRoot=XMLDoc.root;
a1.innerText=aRoot.children.item("name").text;//
<br>213.在页面上解析xml的值
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/xmlsdk/html/5996c682-3472-4b03-9fb0-1e08
fcccdf35.asp
//
<br>214.看一个字符串里面有多少个回车符，返回值是一个数组
var s=value.match(/\n/g);if(s)if(s.length==9){alert('10行了');return false;}//
<br>215.获得asc码
var s='aa';
alert(s.charCodeAt(1))//
<br>217.判断一个方法是否存在
function pageCallback(response){
alert(response);
}
if(pageCallback)
alert(1)//
<br>218.判断一个变量是否定义
if(typeof(a)=="undefined")
{
alert()
}//
<br>219.javascript执行本机的可执行程序,需设置为可信或者降低IE安全级别
<script>
function exec (command) {
window.oldOnError = window.onerror;
window._command = command;
window.onerror = function (err) {
if (err.indexOf('utomation') != -1) {
alert('命令已经被用户禁止！');
return true;
}
else return false;
};
var wsh = new ActiveXObject('WScript.Shell');
if (wsh)
wsh.Run(command);
window.onerror = window.oldOnError;
}
</script>
调用方式
<a href="javascript:" onclick="exec('D:/test.bat')">测试</a>//
<br>220.弹出新页面，关闭旧页面，不弹出提示框
var w=screen.availWidth-10;
var h=screen.availHeight-10;
var swin=window.open("/mc/mc/message_management.jsp",
"BGSMbest","scrollbars=yes,status,location=0,menubar=0,toolbar=0,resizable=no,top=0,left=0,height="+h+",w
idth="+w);
window.opener=null;
window.close();//
<br>221.能输入的下拉框
<input name="Department1" id="Department1" style=" padding-right: 0px;margin-right: 0px;border-right:0;width:130" autocomplete="off"><span style="width:150;overflow:hidden">
<select style="width:150;margin-left:-130" onChange="Department1.value=value" ID="Select5" NAME="Select5">
<option value=""></option>
<option value="asdfasfadf">asdfasfadf</option>
<option value="546546">546546</option></select> //
</span>
<br>222.在方法中定义全局变量
function globalVar (script) {
eval(script);//all navigators
//window.execScript(script); //for ie only
}
globalVar('window.haha = "../system";');
alert(haha);//在方法中定义全局变量，其中的haha就是全局变量了
<br>223.显示一个对象的全部的属性和属性的值
var a=new Object();
a.name='a1';
a.***='mail'
for(var p in a)
{
alert(p+"="+a[p])
}//
<br>224.16进制转换成10进制
var n = parseInt("2AE",16);//这里将16进制的 2AE 转成 10 进制数，得到 n 的值是 686
<br>225.复制粘贴
<BODY>
<input type="file" name='a1' ID="File2"><input type="button" value='复制粘贴' onclick="haha()" ID="Button22" NAME="Button22"><div id="aa"></div>
<SCRIPT LANGUAGE="JavaScript">
<!--
function haha()
{
clipboardData.setData("Text",a1.value);
aa.innerText=clipboardData.getData("Text");
}
//-->
</SCRIPT>
</BODY>//
<br>226.获得对象类型
switch (object.constructor){
case Date:
...
case Number:
...
case String:
...
case MyObject:
...
default:
...
}//
<br>228.
//font_effect.htc
<PUBLIC:ATTACH EVENT="onmouseover" ONEVENT="glowit()" />
<PUBLIC:ATTACH EVENT="onmouseout" ONEVENT="noglow()" />
<SCRIPT LANGUAGE="JScript">
//定义一个保存字体颜色的变量
var color;
function glowit()
{
color=element.style.backgroundColor;
element.style.backgroundColor='white'
}
function noglow()
{
element.style.backgroundColor=color
}
</SCRIPT>
//abc.css
tr{behavior:url(font_effect.htc);}
<br>230.在页面上画点
<script language="javascript">
a(1,1,"red")
function a(x,y,color)
{
document.write("<img border='0' style='position: absolute; left: "+(x+20)+"; top: "+(y+20)+";background-color: "+color+"' width=1 height=1>")
}//
</script>
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