复制代码 代码如下:

<script language="javascript">

//禁止用F5键

function document.onkeydown()

{

if ( event.keyCode==116)

{

event.keyCode = 0;

event.cancelBubble = true;

return false;

}

}

//禁止右键弹出菜单

function document.oncontextmenu()

{

return false;

}

//下面代码实现全屏显示

function window.onload(){

var Request = new Array();//保存参数

var s = location.search.substring(1);

if (s && s!=""){

var list = s.split("&");

for (var i=0; i < list.length; i++){

var pair = list[i].split("=");

if (pair[0] && pair[0] !=""){

Request[unescape(pair[0])] = unescape(pair[1]);

}

}

}

var fullscreen=Request["fullscreen"];

if(fullscreen!="yes"){

var file =self.location;

var a = window.open("about:blank","","fullscreen=yes")

self.opener=null

self.close()

a.location=file + "?fullscreen=yes";

}

}

</script>

<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>