禁止网页刷新JS分享

来源：互联网发布：访客网络主人网络编辑：程序博客网时间：2024/05/16 12:12
<script language="Javascript"> //禁止右键弹出菜单 function   document.oncontextmenu() {             return   false;       }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;         }     }//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>
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