Javascript常用小技巧

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”?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&#13sdfs&#32”
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'”>
获取在父文档中生成 window 的 frame 或 iframe 对像
window.frameElement
获取当前对象的内置window对象,作用于frame或iframe
document.all.object.contentWindow
连接是否访问过
event.srcElement.currentStyle.visited
组件是否安装
clientCaps.isComponentInstalled(“{6B053A4B-A7EC-4D3D-4567-B8FF8A1A5739}”, “componentID”))

//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?/\d/.test(String.fromCharCode(event.keyCode))||(this.value.indexOf(‘.’)<0?event.keyCode==46:false)”?onpaste=“return?!clipboardData.getData(‘text’).match(/\D/)”?ondragenter=“return?false” style=”ime-mode:disabled“>

//特殊用途

<input?type=button?value=导入收藏夹?onclick=“window.external.ImportExportFavorites(true,’http://localhost’);”> 

<input?type=button?value=导出收藏夹?onclick=“window.external.ImportExportFavorites(false,’http://localhost’);”> 

<input?type=button?value=整理收藏夹?onclick=“window.external.ShowBrowserUI(‘OrganizeFavorites’,?null)”>

<input?type=button?value=语言设置???onclick=“window.external.ShowBrowserUI(‘LanguageDialog’,?null)”>

<input?type=button?value=加入收藏夹?onclick=“window.external.AddFavorite(‘http://www.google.com/’,?’google’)”> 

<input?type=button?value=加入到频道?onclick=“window.external.addChannel(‘http://www.google.com/’)”> 

<input?type=button?value=加入到频道?onclick=“window.external.showBrowserUI(‘PrivacySettings’,null)”>

//不缓存

<META?HTTP-EQUIV=“pragma”?CONTENT=“no-cache”>

<META?HTTP-EQUIV=“Cache-Control”?CONTENT=“no-cache,?must-revalidate”>

<META?HTTP-EQUIV=“expires”?CONTENT=“0”>

//正则匹配

匹配中文字符的正则表达式：?[\u4e00-\u9fa5]

匹配双字节字符(包括汉字在内)：[^\x00-\xff]

匹配空行的正则表达式：\n[\s|?]*\r

匹配HTML标记的正则表达式：/<(.*)>.*<\/\1>|<(.*)?\/>/

匹配首尾空格的正则表达式：(^\s*)|(\s*$)（像vbscript那样的trim函数）

匹配Email地址的正则表达式：\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*

匹配网址URL的正则表达式：http://([\w-]+\.)+[\w-]+(/[\w-?./?%&=]*)? 

以下是例子：

利用正则表达式限制网页表单里的文本框输入内容：

用正则表达式限制只能输入中文：onkeyup=“value=value.replace(/[^\u4E00-\u9FA5]/g,”)”?onbeforepaste=“clipboardData.setData(‘text’,clipboardData.getData(‘text’).replace(/[^\u4E00-\u9FA5]/g,”))”

1.用正则表达式限制只能输入全角字符：?onkeyup=“value=value.replace(/[^\uFF00-\uFFFF]/g,”)”?onbeforepaste=“clipboardData.setData(‘text’,clipboardData.getData(‘text’).replace(/[^\uFF00-\uFFFF]/g,”))”

2.用正则表达式限制只能输入数字：onkeyup=“value=value.replace(/[^\d]/g,”)?”onbeforepaste=“clipboardData.setData(‘text’,clipboardData.getData(‘text’).replace(/[^\d]/g,”))”

3.用正则表达式限制只能输入数字和英文：onkeyup=“value=value.replace(/[\W]/g,”)?”onbeforepaste=“clipboardData.setData(‘text’,clipboardData.getData(‘text’).replace(/[^\d]/g,”))”

//消除图像工具栏

<IMG?SRC=“mypicture.jpg”?HEIGHT=“100px”?WIDTH=“100px”?GALLERYIMG=“false”>

or

<head>

<meta?http-equiv=“imagetoolbar”?content=“no”>

</head>

//无提示关闭

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

<object?id=min?classid=“clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11”>

<param?name=“Command”?value=“Minimize”></object>

<object?id=max?classid=“clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11”>

<param?name=“Command”?value=“Maximize”></object>

<OBJECT?id=close?classid=“clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11”>

<PARAM?NAME=“Command”?value=“Close”></OBJECT>

<input?type=button?value=最小化?onclick=min.Click()>

<input?type=button?value=最大化?onclick=max.Click()>

<input?type=button?value=关闭?onclick=close.Click()>

//光标停在文字最后

<script?language=“javascript”>

function?cc()

{

var?e?=?event.srcElement;

var?r?=e.createTextRange();

r.moveStart(‘character’,e.value.length);

r.collapse(true);

r.select();

}

</script>

<input?type=text?name=text1?value=“123”?onfocus=“cc()”>

//页面进入和退出的特效

进入页面<meta?http-equiv=“Page-Enter”?content=“revealTrans(duration=x,?transition=y)”>

推出页面<meta?http-equiv=“Page-Exit”?content=“revealTrans(duration=x,?transition=y)”>

这个是页面被载入和调出时的一些特效。duration表示特效的持续时间，以秒为单位。transition表示使

用哪种特效，取值为1-23:

0?矩形缩小

1?矩形扩大

2?圆形缩小

3?圆形扩大

4?下到上刷新

5?上到下刷新

6?左到右刷新

7?右到左刷新

8?竖百叶窗

9?横百叶窗

10?错位横百叶窗

11?错位竖百叶窗

12?点扩散

13?左右到中间刷新

14?中间到左右刷新

15?中间到上下

16?上下到中间

17?右下到左上

18?右上到左下

19?左上到右下

20?左下到右上

21?横条

22?竖条

23

//网页是否被检索

<meta?name=“ROBOTS”?content=“属性值”>

其中属性值有以下一些:

属性值为“all”:?文件将被检索，且页上链接可被查询；

属性值为“none”:?文件不被检索，而且不查询页上的链接；

属性值为“index”:?文件将被检索；

属性值为“follow”:?查询页上的链接；

属性值为“noindex”:?文件不检索，但可被查询链接；

属性值为“nofollow”:

//打印分页

<p??style=“page-break-after:always”>page1</p>

<p??style=“page-break-after:always”>page2</p>

//设置打印

<object?id=“factory”?style=“display:none”?viewastext

classid=“clsid:1663ed61-23eb-11d2-b92f-008048fdd814”

codebase=“http://www.meadroid.com/scriptx/ScriptX.cab#Version=5,60,0,360″ 

></object>

<input?type=button?value=页面设置?onclick=“factory.printing.PageSetup()”>

<input?type=button?value=打印预览?onclick=“factory.printing.Preview()”>
<script?language=javascript>

function?window.onload()

{

//?–?advanced?features 

factory.printing.SetMarginMeasure(2)?//?measure?margins?in?inches 

factory.printing.SetPageRange(false,?1,?3)?//?need?pages?from?1?to?3 

factory.printing.printer?=?“HP?DeskJet?870C”

factory.printing.copies?=?2

factory.printing.collate?=?true

factory.printing.paperSize?=?“A4”

factory.printing.paperSource?=?“Manual?feed”

//?–?basic?features 

factory.printing.header?=?“居左显示&b居中显示&b居右显示页码，第&p页/共&P页”

factory.printing.footer?=?“（自定义页脚）”

factory.printing.portrait?=?false

factory.printing.leftMargin?=?0.75

factory.printing.topMargin?=?1.5

factory.printing.rightMargin?=?0.75

factory.printing.bottomMargin?=?1.5

}

function?Print(frame)?{

factory.printing.Print(true,?frame)?//?print?with?prompt 

}

</script>

<input?type=button?value=“打印本页”?onclick=“factory.printing.Print(false)”>

<input?type=button?value=“页面设置”?onclick=“factory.printing.PageSetup()”>

<input?type=button?value=“打印预览”?onclick=“factory.printing.Preview()”><br>

<a?href=“http://www.meadroid.com/scriptx/docs/printdoc.htm?static”??target=_blank>具体使用手册，更多信息，点这里</a> 

?

//自带的打印预览

WebBrowser.ExecWB(1,1)?打开

Web.ExecWB(2,1)?关闭现在所有的IE窗口，并打开一个新窗口

Web.ExecWB(4,1)?保存网页

Web.ExecWB(6,1)?打印

Web.ExecWB(7,1)?打印预览

Web.ExecWB(8,1)?打印页面设置

Web.ExecWB(10,1)?查看页面属性

Web.ExecWB(15,1)?好像是撤销，有待确认

Web.ExecWB(17,1)?全选

Web.ExecWB(22,1)?刷新

Web.ExecWB(45,1)?关闭窗体无提示

<style?media=print>

.Noprint{display:none;}<!–用本样式在打印时隐藏非打印项目–>

.PageNext{page-break-after:?always;}<!–控制分页–>

</style>

<object??id=“WebBrowser”??width=0??height=0??classid=“CLSID:8856F961-340A-11D0-A96B-00C04FD705A2”>

</object>
<center?class=“Noprint”?>

<input?type=button?value=打印?onclick=document.all.WebBrowser.ExecWB(6,1)>

<input?type=button?value=直接打印?onclick=document.all.WebBrowser.ExecWB(6,6)>

<input?type=button?value=页面设置?onclick=document.all.WebBrowser.ExecWB(8,1)>

</p>

<p>?<input?type=button?value=打印预览?onclick=document.all.WebBrowser.ExecWB(7,1)>

</center>

//去掉打印时的页眉页脚

<script??language=“JavaScript”>

var?HKEY_Root,HKEY_Path,HKEY_Key;

HKEY_Root=“HKEY_CURRENT_USER”;

HKEY_Path=“\\Software\\Microsoft\\Internet?Explorer\\PageSetup\\”;

//设置网页打印的页眉页脚为空 

function?PageSetup_Null()

{

try

{

var?Wsh=new?ActiveXObject(“WScript.Shell”);

HKEY_Key=“header”;

Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,“”);

HKEY_Key=“footer”;

Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,“”);

}

catch(e){}

}

//设置网页打印的页眉页脚为默认值 

function??PageSetup_Default()

{

try

{

var?Wsh=new?ActiveXObject(“WScript.Shell”);

HKEY_Key=“header”;

Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,“&w&b页码,&p/&P”);

HKEY_Key=“footer”;

Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,“&u&b&d”);

}

catch(e){}

}

</script>

<input?type=“button”?value=“清空页码”?onclick=PageSetup_Null()>

<input?type=“button”?value=“恢复页码”?onclick=PageSetup_Default()>

//浏览器验证

function?checkBrowser()

{

this.ver=navigator.appVersion

this.dom=document.getElementById?1:0

this.ie6=(this.ver.indexOf(“MSIE?6”)>-1?&&?this.dom)?1:0;

this.ie5=(this.ver.indexOf(“MSIE?5”)>-1?&&?this.dom)?1:0;

this.ie4=(document.all?&&?!this.dom)?1:0;

this.ns5=(this.dom?&&?parseInt(this.ver)?>=?5)??1:0;

this.ns4=(document.layers?&&?!this.dom)?1:0;

this.mac=(this.ver.indexOf(‘Mac’)?>?-1)??1:0;

this.ope=(navigator.userAgent.indexOf(‘Opera’)>-1);

this.ie=(this.ie6?||?this.ie5?||?this.ie4)

this.ns=(this.ns4?||?this.ns5)

this.bw=(this.ie6?||?this.ie5?||?this.ie4?||?this.ns5?||?this.ns4?||?this.mac?||?this.ope)

this.nbw=(!this.bw)

return?this;

}

//计算内容宽和高

<SCRIPT??language=“javascript”>
function??test(obj)

{
var??range??=??obj.createTextRange();

alert(“内容区宽度:??”??+??range.boundingWidth

+??“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>

</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?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);

}

}

}

//POST代替FORM

<SCRIPT?language=“VBScript”>

Function?URLEncoding(vstrIn)

strReturn?=?“”

For?i?=?1?To?Len(vstrIn)

ThisChr?=?Mid(vStrIn,i,1)

If?Abs(Asc(ThisChr))?<?&HFF?Then

strReturn?=?strReturn?&?ThisChr

Else

innerCode?=?Asc(ThisChr)

If?innerCode?<?0?Then

innerCode?=?innerCode?+?&H10000

End?If

Hight8?=?(innerCode??And?&HFF00)\?&HFF

Low8?=?innerCode?And?&HFF

strReturn?=?strReturn?&?“%”?&?Hex(Hight8)?&??“%”?&?Hex(Low8)

End?If

Next

URLEncoding?=?strReturn

End?Function

Function?bytes2BSTR(vIn)

strReturn?=?“”

For?i?=?1?To?LenB(vIn)

ThisCharCode?=?AscB(MidB(vIn,i,1))

If?ThisCharCode?<?&H80?Then

strReturn?=?strReturn?&?Chr(ThisCharCode)

Else

NextCharCode?=?AscB(MidB(vIn,i+1,1))

strReturn?=?strReturn?&?Chr(CLng(ThisCharCode)?*?&H100?+?CInt(NextCharCode))

i?=?i?+?1

End?If

Next

bytes2BSTR?=?strReturn

End?Function

dim?strA,oReq

strA?=?URLEncoding(“submit1=Submit&text1=中文”)

set?oReq?=?CreateObject(“MSXML2.XMLHTTP”)

oReq.open?“POST”,“http://ServerName/VDir/TstResult.asp”,false 

oReq.setRequestHeader?“Content-Length”,Len(strA)

oReq.setRequestHeader?“CONTENT-TYPE”,“application/x-www-form-urlencoded”

oReq.send?strA

msgbox?bytes2BSTR(oReq.responseBody)

</SCRIPT>

//readyState是xmlhttp返回数据的进度，0=载入中,1=未初始化,2=已载入,3=运行中,4=完成

//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;

}

//书

http://www.itpub.net/attachment.php?s=&postid=1894598

http://www.wrclub.net/down/listdown.aspx?id=1341

//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。

<SCRIPT>

function?fnMerge(){

oSource.children[1].mergeAttributes(oSource.children[0]);

}

</SCRIPT>

<SPAN?ID=oSource>

<DIV

ID=“oDiv”

ATTRIBUTE1=“true”

ATTRIBUTE2=“true”

onclick=“alert(‘click’);”

onmouseover=“this.style.color=’#0000FF’;”

onmouseout=“this.style.color=’#000000′;”

>

This?is?a?sample?<B>DIV</B>?element.

</DIV>

<DIV?ID=“oDiv2”>

This?is?another?sample?<B>DIV</B>?element.

</DIV>

</SPAN>

<INPUT

TYPE=“button”

VALUE=“Merge?Attributes”

onclick=“fnMerge()”

>

将选中内容保存为html

<HTML>

<HEAD>

<TITLE>?New?Document?</TITLE>

<META?NAME=“Generator”?CONTENT=“EditPlus”>

<META?NAME=“Author”?CONTENT=“”>

<META?NAME=“Keywords”?CONTENT=“”>

<META?NAME=“Description”?CONTENT=“”>

</HEAD>

<SCRIPT?LANGUAGE=“JavaScript”>

<!–
function?save()

{
var?f;

f?=?document.getElementById(“xx”);
if(f==null)

{

document.appendChild(document.createElement(“<iframe?id=xx?name=xx?width=0?height=0></iframe>”));

f?=?document.getElementById(“xx”);

}
var?fa?=?window.frames[“xx”];
fa.document.write(document.selection.createRange().htmlText);

fa.document.close();

fa.document.execCommand(“saveas”,true,“a.htm”);

}

//–> 

</SCRIPT>

<BODY>

<UL>

<LI><FONT?size=2><STRIKE>显示版块帖子</STRIKE>?</FONT>

<LI><FONT?size=2>版块帖子分页?</FONT>

<LI><FONT?size=2><STRIKE>显示单个帖子</STRIKE>?</FONT>

<LI><FONT?size=2><STRIKE>发送新帖</STRIKE></FONT>

<LI><FONT?size=2><STRIKE>帖子回复</STRIKE>?</FONT>

<LI><FONT?size=2><STRIKE>个人登陆</STRIKE>?</FONT>

<LI><FONT?size=2>留言的回复功能</FONT></LI></UL>

<input?type=button?onclick=“save()”?value=“aa”>

</BODY>

</HTML>

判断是刷新还是离开

<HTML>

<HEAD>

<TITLE>判断是刷新还是关闭－www.51windows.Net</TITLE>

<meta?http-equiv=“Content-Type”?content=“text/html;?charset=gb2312”>

<META?NAME=“Author”?CONTENT=“51windows,海娃,haiwa”>

<META?NAME=“Description”?CONTENT=“Power?by?51windows.Net”>

</HEAD>

<script>

function?CloseOpen()?{

if(event.clientX<=0?&&?event.clientY<0)?{

alert(“关闭”);

}

else

{

alert(“刷新或离开”);

}

}

</script>

<body?onunload=“CloseOpen()”>

</BODY>

</HTML>

获得光标位置

<textarea?rows=10?cols=100?onclick=“getCursorPosition()”?onkeyup=“getCursorPosition()”>

北京时间10月6日，世界三大通讯社之一的法新社刊发图文报道，中国国脚孙继海因为在最近的世界杯预选赛中的表现，已经吸引了意大利俱乐部AC米兰和都灵队的争购。中国队只需在10月7日同阿曼队的比赛中战平就将首次进入世界杯决赛圈。图为孙继海(右)1998年12月19日在亚洲杯上的资料图片。</textarea>

<script?language=JScript>

function?getCursorPosition(){

var?src?=?event.srcElement

var?oTR?=?src.createTextRange()

var?oSel?=?document.selection.createRange()

var?textLength?=?src.innerText.length

var?line,?char,?total,?cl

oTR.moveToPoint(oSel.offsetLeft,?oSel.offsetTop)

oTR.moveStart(“character”,?-1*textLength)

cl?=?oTR.getClientRects()

line?=?cl.length

total?=?oTR.text.length

oTR.moveToPoint(cl[cl.length-1].left,?cl[cl.length-1].top)

oTR.moveStart(“character”,?-1*textLength)

char?=?total?-?oTR.text.length

if?(oSel.offsetTop?!=?cl[cl.length-1].top)?{line++;?char?=?0}

else?if?(src.createTextRange().text.substr(oTR.text.length,?2)?==?“\r\n”)?char?-=?2

window.status?=?“行:?”?+?line?+“,?列:?”?+?char?+?“,?第?”?+?total?+?“?个字符”

}

</SCRIPT>

TextRange的常用方法

collapse([bStart])

收起选区，并移动Range的插入点

bStart?true(移到开头,default)?false(移到末尾)
expand(sUnit)

展开选区，让单位所包括的选区被包含进来
findText(sText?[,?iSearchScope]?[,?iFlags])

在Range中查找sText

iSearchScope?开始位置，负数方向搜索

iFlags?1(向后搜索) 2(整词匹配)?4(区别大小写)
moveStart(sUnit?[,?iCount])

moveEnd(sUnit?[,?iCount])

移动Range的开头或结尾

sUnit?character(字)?word(词)?sentence(句)?textedit(Range)

iCount?移动数量，默认为1
moveToPoint(iX,?iY)

移动光标到坐标(iX,iY)
pasteHTML(sHTMLText)

替换Range中的html
scrollIntoView([bAlignToTop])

滚动使之在当前窗口显示

bAlignToTop?true(Range在窗口开头)?false(Range在窗口底部)
select()

让选区选中状态

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