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：

<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; } 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>

希望本文所述对大家的javascript程序设计有所帮助。