function click(e) { 
 if (document.all) { 
  if (event.button==1||event.button==2||event.button==3) { 
   oncontextmenu='return false'; 
  } 
 } 
 if (document.layers) { 
  if (e.which == 3) { 
   oncontextmenu='return false'; 
  } 
 } 
} 
if (document.layers) { 
 document.captureEvents(Event.MOUSEDOWN); 
} 
document.onmousedown=click; 
document.oncontextmenu = new Function("return false;") 

 

var travel=true 
var hotkey=17   /* hotkey即为热键的键值,是ASII码,这里99代表c键 */ 
if (document.layers) 
document.captureEvents(Event.KEYDOWN) 
function gogo(e) 
{ if (document.layers) { 
if (e.which==hotkey&&travel){ 
 alert("非法请求，请尊重版权所有!");  } } 
else if (document.all){ 
if (event.keyCode==hotkey&&travel){ alert("非法请求，请尊重版权所有!"); }} 
} 

 

document.onkeydown=gogo