html, javascript 常用代码总结
获取事件源对象
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();
-- document.all 好像是不推荐使用的
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]
--这么用不太现实吧，窗体里要是元素特别多，还得一个一个数啊？除非万不得已
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";
-- 实现动态换肤的基础
并排显示 （内联）
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" C>
简单邮件
<a href="[[email protected]?subject=ccc&body=xxxyyy]mailto:[email protected]?subject=ccc&body=xxxyyy[/email]">
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>
-- 这个用法还是不建议的，显示的还是由CSS管理，不要hardcode
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 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 += "\r\n网页可见区域宽："+ document.body.clientWidth; s += "\r\n网页可见区域高："+ document.body.clientHeight; s += "\r\n网页可见区域高："+ document.body.offsetWeight +" (包括边线的宽)"; s += "\r\n网页可见区域高："+ document.body.offsetHeight +" (包括边线的宽)"; s += "\r\n网页正文全文宽："+ document.body.scrollWidth; s += "\r\n网页正文全文高："+ document.body.scrollHeight; s += "\r\n网页被卷去的高："+ document.body.scrollTop; s += "\r\n网页被卷去的左："+ document.body.scrollLeft; s += "\r\n网页正文部分上："+ window.screenTop; s += "\r\n网页正文部分左："+ window.screenLeft; s += "\r\n屏幕分辨率的高："+ window.screen.height; s += "\r\n屏幕分辨率的宽："+ window.screen.width; s += "\r\n屏幕可用工作区高度："+ window.screen.availHeight; s += "\r\n屏幕可用工作区宽度："+ window.screen.availWidth;
过滤数字
<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- ./?%&=]*)?
正则表达式例子：
//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
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.
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
//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)>
<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\\";
</script>
//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
<script language="javascript">
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 +
"px\r\n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: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>
<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>
</head>
<body>
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' 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"><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 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>
//刷新后内容不变的文本框
<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
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
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);
}
}
}
----------------------------------------------------------------------------------------------------------------------------------
//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
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><td>" + rs("au_fname") + "</td><td>" + rs("phone") + "</td><td>" + rs("address") + "</td><td>" + rs("city") + "</td><td>" + rs("state") + "</td><td>" + rs("zip") + "</td></tr>";
rs.moveNext;
}
shtml += "</table>";
document.write(shtml);
rs.close();
rs = null;
conn.close();
conn = null;
</script>
//使用数据岛
<html>
<body>
srno：<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>
//设置光标位置
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
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
<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 + 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
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_ROOT\Scripting.FileSystemObject Scripting.FileSystemObject
3.对于使用object的用户，修改HKEY_CLASSES_ROOT\Scripting.
//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.width > 0 && image.height > 0) {
flag = true;
if (image.width / image.height >= iwidth / iheight) {
if (image.width > iwidth) {
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.height > iheight) {
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;">
<option>1111</option>
<option>11111111111111</option>
<option>111111111</option>
</select>
</span>
//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:root\cimv2");
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_version>5)
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。
返回createTextRange的text和htmlText
<script language="javascript">
function test(){
var rng = document.body.createTextRange();
alert(rng.text)
}
function test1(){
var rng = document.body.createTextRange();
alert(rng.htmlText)
}
</script>
<input type="button" onclick="test()" value="text">
<input type="button" onclick="test1()" value="htmlText">
获取指定文本框中的选中的文字：只响应第一个文本框
<input id="inp1" type="text" value="1234567890">
<input id="inp2" type="text" value="9876543210">
<input type="button" onclick="test()" value="确定">
<script language="javascript">
function test(){
var o = document.getElementById("inp1")
var r = document.selection.createRange();
if (o.createTextRange().inRange(r))
alert(r.text);
}
</script>
页面文本倒序查找
abababababababa
<input value="倒序查找a" onclick=myfindtext("a") type="button">
<script language ='javascript'>
var rng = document.body.createTextRange();
function myfindtext(text){
rng.collapse(false);
if (rng.findText(text, -1, 1)) {
rng.select();
rng.collapse(true);
}
else {
alert("end");
}
}
</script>
得到文本框内光标位置
<script language="javascript">
function getPos(obj){
obj.focus();
var s = document.selection.createRange();
s.setEndPoint("StartToStart", obj.createTextRange())
alert(s.text.length);
}
</script>
<input type="text" id="txt1" value="1234567890">
<input type="button" value="得到光标位置" onclick=getPos(txt1)>
控制input框内光标位置
<script language="javascript">
function setPos(num){
text1.focus();
var e = document.getElementById("text1");
var r = e.createTextRange();
r.moveStart('character', num);
r.collapse(true);
r.select();
}
</script>
<input type="text" id="text1" value="1234567890">
<select onchange="setPos(this.selectedIndex)">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
</select>
选中文本框中的一段文字
<script language=javascript>
function sel(obj, num){
var rng = obj.createTextRange()
var sel = rng.duplicate();
sel.moveStart("character", num);
sel.setEndPoint("EndToStart", rng);
sel.select();
}
</script>
<input type="text" id="text1" value="1234567890">
<select onchange="sel(text1,this.value)">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
</select>
控制文本框内光标的移动
<input type="button" value="<" onclick=go(-1)>
<input id="demo" value="这里是文字">
<input type="button" value=">" onclick=go(1)>
<script language="javascript">
function go(n){
demo.focus();
with (document.selection.createRange()) {
moveStart("character", n);
collapse();
select();
}
}
</script>