同時適合IE、firefox、谷歌浏覽器下適用，經過篩選代碼如下：
. 代碼如下:
//禁用右鍵、文本選擇功能、復制按鍵
$(document).bind(“contextmenu”,function(){return false;});
$(document).bind(“selectstart”,function(){return false;});
$(document).keydown(function(){return key(arguments[0])});
//按鍵時提示警告
function key(e){
var keynum;
if(window.event){
keynum = e.keyCode; // IE
}else if(e.which){
keynum = e.which; // Netscape/Firefox/Opera
}
if(keynum == 17){
alert(“禁止復制內容！”);
return false;
}
}
//禁用右鍵、文本選擇功能、復制按鍵
$(document).bind("contextmenu",function(){return false;});
$(document).bind("selectstart",function(){return false;});
$(document).keydown(function(){return key(arguments[0])});
//按鍵時提示警告
function key(e){
var keynum;
if(window.event) // IE
{
keynum = e.keyCode;
}
else if(e.which) // Netscape/Firefox/Opera
{
keynum = e.which;
}
if(keynum == 17){ alert("禁止復制內容！");return false;}
}
<script>
//屏蔽鼠標右鍵、Ctrl+N、Shift+F10、F11、F5刷新、退格鍵
function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠標右鍵
function window.onhelp(){return false} //屏蔽F1幫助
function document.onkeydown(){
if((window.event.altKey)&&
((window.event.keyCode==37)|| //屏蔽Alt+方向鍵←
(window.event.keyCode==39))){ //屏蔽Alt+方向鍵→
alert("不准你使用ALT+方向鍵前進或後退網頁！");
event.returnValue=false;
} if((event.keyCode==8)|| //屏蔽退格刪除鍵
(event.keyCode==116)|| //屏蔽F5刷新鍵
(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加鼠標左鍵新開一網頁
if((window.event.altKey)&&(window.event.keyCode==115)){ //屏蔽Alt+F4
window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");
return false;
}
}
</script>