/** 屏蔽F1幫助 */
window.onhelp = function(){return false;}
/**
*屏蔽 F5、Ctrl+N、Shift+F10、Alt+F4
*如果想要屏蔽其他鍵，則找到對(duì)應(yīng)的 keyCode 再依照此方法即可
*/
document.onkeydown = function(event){
event = window.event || event;
if(event.keyCode==116 || (event.ctrlKey && event.keyCode==78) || (event.shiftKey && event.keyCode==121) || (event.altKey && event.keyCode==115)){
event.keyCode =0;
event.returnvalue = false;
}
}
/** 屏蔽鼠標(biāo)右鍵 */
document.oncontextmenu = function(){return false;}
//或者
document.onmousedown = function(event){
event = window.event || event;
if(document.all && event.button == 2) {
event.returnvalue=false;
}
}
/**
* 屏蔽“后退”功能(<a href="javascript:replaceLocation('http://www.google.com')" mce_href="javascript:replaceLocation('http://www.google.com')">Google</a>)
* @param url 頁面要轉(zhuǎn)向的URL
*/
function replaceLocation(url){
document.location.replace(url);
}
/** 屏蔽選中網(wǎng)頁內(nèi)容 */
document.onselectstart=function(){return false;}
/** 屏蔽復(fù)制網(wǎng)頁內(nèi)容 */
document.body.oncopy = function(){return false;}
/** 屏蔽剪切網(wǎng)頁內(nèi)容 */
document.body.oncut = function(){return false;}
/** 屏蔽向網(wǎng)頁粘貼內(nèi)容 */
document.body.onpaste = function(){return false;}
/** 屏蔽拷屏（不停的清空剪貼板） */
window.setInterval('window.clipboardData("Text", "")', 100);
/**
* 屏蔽查看源文件( <body onload=clear()> )
*/
function clear() {
var source=document.body.firstChild.data;
document.open();
document.close();
document.body.innerHTML = source;
}
/**
* 屏蔽js報(bào)錯(cuò)
*/
function KillError()
{
return true;
}
window.onerror=KillError;
