function showlx(sel)
{
		if(sel == 0)
		{
			document.getElementById("flight").style.display="block";
			document.getElementById("flight1").style.display="none";
			cximg.src="../images/BJ/jipiao_bt01.gif";
		}
		if(sel == 1)
		{
			document.getElementById("flight").style.display="none";
			document.getElementById("flight1").style.display="block";
			cximg.src="../images/BJ/jipiao_bt02.gif";
		}

}