屏蔽鼠标右键和“F5”（刷新）js代码（支持FF4.0 + IE8）
<script language="JavaScript"> document.oncontextmenu = ppMousedownOfRight; // for IE5+ document.onkeydown = ppPressF5; if (window.addEventListener) { FixPrototypeForGecko(); //是Firefox}/** * 在Firefox中获event */function FixPrototypeForGecko() {window.constructor.prototype.__defineGetter__("event", window_prototype_get_event);}function window_prototype_get_event() {return SearchEvent();}function SearchEvent() {if (document.all)return window.event;func = SearchEvent.caller;while (func != null) {var arg0 = func.arguments[0];if (arg0 instanceof Event) {return arg0;}func = func.caller;}return null;}//禁止用F5键 function ppPressF5(){ if(event.keyCode==116) { event.keyCode=0; event.returnValue=false; return false; } } //禁止右键弹出菜单 function ppMousedownOfRight(){ event.cancelBubble = true event.returnValue = false; return false; } </script> ?