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;  // for IE5+
document.onmousedown = norightclick;  // for all others
function KeyDown(){ 
	if ((event.ctrlKey)&&(event.keyCode==78)||(event.ctrlKey)&&(event.keyCode==72)){ //屏蔽 78 Ctrl+n,72 Ctrl+h,67 Ctrl+c, 88 Ctrl+x
	event.returnValue=false;//返回空
	}
}
function Status(){
	window.status="状态栏";
}
document.onmousemove=Status;

//||(event.ctrlKey)&&(event.keyCode==67)||(event.ctrlKey)&&(event.keyCode==88)
//onkeydown="event.returnValue=false;" //加入body标签中屏蔽所有的键盘事件
//onkeydown="KeyDown();" //屏蔽 Ctrl+n
//oncontextmenu="return false;"//右键菜单
//onselectstart="return false;" //拖黑选择
//ondragstart="return false;"//拖放