日期:2014-05-16  浏览次数:20440 次

js一些常用的技巧

?1.

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

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2.

 <body onselectstart="return false"> 取消选取、防止复制 

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3.

 onpaste="return false" 不准粘贴 

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4.

oncopy="return false;" oncut="return false;" 防止复制 

?5.

<link rel="Shortcut Icon" href="favicon.ico"> IE地址栏前换成自己的图标 

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6.

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

?7.

<input style="ime-mode:disabled"> 关闭输入法 

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8. 永远都会带着框架

<script language="JavaScript"> <!-- 
if (window == top)top.location.href = "frames.htm"; //frames.htm为框架网页 
// --> </script> 


?9. 防止被人frame

<SCRIPT LANGUAGE=JAVASCRIPT> <!-- 
if (top.location != self.location)top.location=self.location; 
// --> </SCRIPT> 

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10. 网页将不能被另存为

<noscript> <*** src="/*.html>"; </***> </noscript> 

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11.

<input type=button value="/查看网页源代码 
onclick="window.location = "view-source:"+ "http://www.pconline.com.cn""> 

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?12.删除时确认

<a href=""javascript :if(confirm("确实要删除吗?"))location="boos.asp?&areyou=删除&page=1"">删除 </a> 

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13. 取得控件的绝对位置

//Javascript 
<script language="Javascript"> 
function getIE(e){ 
var t=e.offsetTop; 
var l=e.offsetLeft; 
while(e=e.offsetParent){ 
t+=e.offsetTop; 
l+=e.offsetLeft; 
} 
alert("top="+t+"/nleft="+l); 
} 
</script> 
//VBScript 
<script language="VBScript"> <!-- 
function getIE() 
dim t,l,a,b 
set a=document.all.img1 
t=document.all.img1.offsetTop 
l=document.all.img1.offsetLeft 
while a.tagName <>"BODY" 
set a = 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" 
end function 
--> </script> 

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14. 光标是停在文本框文字的最后

<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()"> 

?15. 判断上一页的来源

javascript : 
document.referrer 

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16. 最小化、最大化、关闭窗口

<object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> 
<param name="Command" value="Minimize"> </object> 
<object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> 
<param name="Command" value="Maximize"> </object> 
<OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"> 
<PARAM NAME="Command" value="/Close"> </OBJECT> 
<input type=button value="/最小化 onclick=hh1.Click()> 
<input type=button value="/blog/最大化 onclick=hh2.Click()> 
<input type=button value=关闭 onclick=hh3.Click()> 
本例适用于IE 


?17.屏蔽功能键Shift,Alt,Ctrl

<script> 
function look(){ 
if(event.shiftKey) 
alert("禁止按Shift键!"); //可以换成ALT CTRL 
} 
document.onkeydown=look; 
</script> 

?18. 网页不会被缓存

<META HTTP-EQUIV="pragma" CONTENT="no-cache"> 
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> 
<META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> 
或者 <META HTTP-EQUIV="expires" CONTENT="0"> 

?19.怎样让表单没有凹凸感?<