基于jquery的禁用右键、文本选择功能、复制按键的实现代码

同时适合ie、firefox、谷歌下适用，经过筛选代码如下：

. 代码如下:

//禁用右键、文本选择功能、复制按键
$(document).bind(“contextmenu”,function(){return false;});
$(document).bind(“selectstart”,function(){return false;});
$(document).keydown(function(){return key(arguments[0])});

//按键时提示警告
function key(e){
var keynum;
if(window.event){
keynum = e.keycode; // ie
}else if(e.which){
keynum = e.which; // netscape/firefox/opera
}
if(keynum == 17){
alert(“禁止复制内容！”);
return false;
}
}

//禁用右键、文本选择功能、复制按键
    $(document).bind("contextmenu",function(){return false;});
    $(document).bind("selectstart",function(){return false;});
    $(document).keydown(function(){return key(arguments[0])});

 //按键时提示警告
       function key(e){
            var keynum;
            if(window.event) // ie
              {
                keynum = e.keycode;
              }
            else if(e.which) // netscape/firefox/opera
              {
                keynum = e.which;
              }
            if(keynum == 17){ alert("禁止复制内容！");return false;}
        }

<script> 
//屏蔽鼠标右键、ctrl+n、shift+f10、f11、f5刷新、退格键    
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>