日期:2014-05-16  浏览次数:20410 次

javascript常用方法
avascript中关于屏蔽鼠标右键.防水复制不准粘贴等等等的一些小技巧..

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

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

3. 不准粘贴
onpaste="return false"

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

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

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

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

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>

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

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

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>

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>

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

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">
<ARAM NAME="Command" VALUE="Close"> </OBJECT>
<input type=button value=最小化 onclick=hh1.Click()>
<input type=button value=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?
<input type=text style="border:1 solid #000000">

<input type=text style="border-left:none; border-right:none; border-top:none; border-bottom:

1 solid #000000"> </textarea>

20.<div> <span> &<layer> 的区别?
<div> (di