<!--
if (window.Event)
	document.captureEvents(Event.MOUSEUP);

function nocontextmenu(){
	event.cancelBubble = true
	event.returnValue = false;
	return false;
}

function norightclick(e){
	if (window.Event){
		if (e.which == 2 || e.which == 3)
		return false;
	}else if (event.button == 2 || event.button == 3){
		event.cancelBubble = true;
		event.returnValue = false;
		return false;
	}
}

document.oncontextmenu = nocontextmenu;
document.onmousedown = norightclick;

//<body onselectstart="return false">

//屏蔽PrintScreen   
//function testclip(){
//	try{
		//检测系统内存
//		if(clipboardData.getData("Text") || clipboardData.getData("HTML") || clipboardData.getData("URL")){
//			null; //不为图像则保留内存
//		}
//	}
//	catch(e){
//		clipboardData.setData("Text","") //清空内存
//	}
//	setTimeout("testclip()", 500)   
//}   
//页面加载启动区;   
//testclip(); //不停清空剪贴板   
//-->