頁面禁止用F11

function filter(){
   if (event.keyCode==122){
   event.keyCode=0;
   window.event.returnValue=false;
   }
}
</script>

<!--  <frameset rows="*" framespacing="0" frameborder="NO" border="0">
    <frameset cols="208,*" framespacing="0" frameborder="NO" border="0">-->
    <frameset rows="*" cols="208,*" framespacing="0" onkeydown="filter();" frameborder="NO" border="0">
    <frame src="spa_menu.jsp" name="menu" scrolling="AUTO">
    <frame src="spa_welcome.jsp" name="work">
  </frameset>