一些实用的 Javascript 代码

oncontextmenu="window.event.return value=false"将彻底屏蔽鼠标右键
<tableborderoncontextmenu=return(false)><td>no</table>可用于Table

<bodyonselectstart="returnfalse">取消选取、防止复制

onpaste="returnfalse"不准粘贴

oncopy="returnfalse;"oncut="returnfalse;"防止复制

<linkrel="ShortcutIcon"href="favicon.ico">IE地址栏前换成自己的图标

<linkrel="Bookmark"href="favicon.ico">可以在收藏夹中显示出你的图标

<inputstyle="ime-mode:disabled">关闭输入法

永远都会带着框架
<scriptlanguage="javascript"><!--
if(window==top)top.location.href="frames.htm";//frames.htm为框架网页
//--></script>

防止被人frame
<SCRIPTLANGUAGE=javascript><!--
if(top.location!=self.location)top.location=self.location;
//--></SCRIPT>

<noscript><iframesrc=*.html></iframe></noscript>网页将不能被另存为

<inputtype=buttonvalue=查看网页源代码
onclick="window.location='view-source:'+'http://www.21asp.net/;">

取得控件的绝对位置

//javascript
<scriptlanguage="javascript">
functiongetIE(e){
vart=e.offsetTop;
varl=e.offsetLeft;
while(e=e.offsetParent){
t+=e.offsetTop;
l+=e.offsetLeft;
}
alert("top="+t+"\nleft="+l);
}
</script>

//VBScript
<scriptlanguage="VBScript"><!--
functiongetIE()
dimt,l,a,b
seta=document.all.img1
t=document.all.img1.offsetTop
l=document.all.img1.offsetLeft
whilea.tagName<>"BODY"
seta=a.offsetParent
t=t+a.offsetTop
l=l+a.offsetLeft
wend
msgbox"top="&t&chr(13)&"left="&l,64,"得到控件的位置"
endfunction
--></script>

光标是停在文本框文字的最后
<scriptlanguage="javascript">
functioncc()
{
vare=event.srcElement;
varr=e.createTextRange();
r.moveStart('character',e.value.length);
r.collapse(true);
r.select();
}
</script>
<inputtype=textname=text1value="123"onfocus="cc()">

最小化、最大化、关闭窗口
<objectid=hh1classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<paramname="Command"value="Minimize"></object>
<objectid=hh2classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">
<paramname="Command"value="Maximize"></object>
<OBJECTid=hh3classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">
<PARAMNAME="Command"value="Close"></OBJECT>

<inputtype=buttonvalue=最小化onclick=hh1.Click()>
<inputtype=buttonvalue=最大化onclick=hh2.Click()>
<inputtype=buttonvalue=关闭onclick=hh3.Click()>

本例适用于IE