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" οnkeydοwn="filter();" frameborder="NO" border="0">
<frame src="spa_menu.jsp" name="menu" scrolling="AUTO">
<frame src="spa_welcome.jsp" name="work">
</frameset>