js禁止页面刷新与后退的方法
本文实例讲述了js禁止页面刷新与后退的方法。分享给大家供大家参考。具体实现方法如下:
[JavaScript]
[JavaScript]
- <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>