var statename='';
function tr1(){
	document.getElementById("box1").style.display="block";
	document.getElementById("box2").style.display="none";
	document.getElementById("btn1").className="b01";
	document.getElementById("btn2").className="b2";

}
function tr2(){
	document.getElementById("box1").style.display="none";
	document.getElementById("box2").style.display="block";
	document.getElementById("btn1").className="b1";
	document.getElementById("btn2").className="b02";
}