function showlx(sel)
{
		if(sel == 0)
		{
			document.getElementById("flight").style.display="block";
			document.getElementById("world").style.display="none";
			cximg.src="../Themes/imges/img/srech_01.jpg";
		}
		if(sel == 1)
		{
			document.getElementById("flight").style.display="none";
			document.getElementById("world").style.display="block";
			cximg.src="../Themes/imges/img/srech_02.jpg";
		}
	

}