js屏蔽浏览器（IE和FireFox）的刷新功能

javascript 屏蔽F5，BackSpace，IE的刷新，右键功能

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    javascript

IEJavaScriptJavaFirefox浏览器 

Java代码  收藏代码

    function DisableF5(){   
       with (event){   
               // F5 and Ctrl+R   
         if (keyCode==116 || (ctrlKey && keyCode==82)){   
           event.keyCode = 0;   
           event.cancelBubble = true;   
           return false;   
         }   
       }   
    }   
      
    document.onkeydown = DisableF5;   





Java代码  收藏代码

    function document.onkeydown()   
    {   
       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;   
          }   
    }   
       



一，js屏蔽浏览器（IE和FireFox）的刷新功能

Java代码  收藏代码

    document.onkeydown=function()  
    {  
      if ((window.event.keyCode==116)|| //屏蔽 F5  
          (window.event.keyCode==122)|| //屏蔽 F11  
          (window.event.shiftKey && window.event.keyCode==121) //shift+F10  
         )  
         {   
              window.event.keyCode=0;  
              window.event.returnValue=false;  
         }   
      if ((window.event.altKey)&&(window.event.keyCode==115))  
         {   
             //屏蔽Alt+F4  
             window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");  
             return false;  
         }    
    }  



二，js屏蔽浏览器右键功能
Java代码  收藏代码

    if (window.Event)   
    document.captureEvents(Event.MOUSEUP);   
    function nocontextmenu()  
    {   
     event.cancelBubble = true   
     event.returnValue = false;   
     return false;   
    }   
    function norightclick(e){   
     if (window.Event){   
      if (e.which == 2 || e.which == 3)   
      return false;   
     }   
     else   
      if (event.button == 2 || event.button == 3){   
       event.cancelBubble = true   
       event.returnValue = false;   
       return false;   
      }   
    }   
    document.oncontextmenu = nocontextmenu; // for IE5+   
    document.onmousedown = norightclick; // for all others