<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>
</script>