// JavaScript Document
function show1(){
		document.getElementById("ceng1").style.display="";
		document.getElementById("ceng2").style.display="none";
		document.getElementById("t1").className="card_bg1";
		document.getElementById("t2").className="card_bg2";
	}
function show2(){
		document.getElementById("ceng2").style.display="";
		document.getElementById("ceng1").style.display="none";
		document.getElementById("t1").className="card_bg2";
		document.getElementById("t2").className="card_bg1";
	}