复制代码 代码如下:
<script language="Javascript" type="text/javascript">
//屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键
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;
}


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>