function listtab(listbtn,listcnt){
	for(i=1; i <3; i++){
		if ("listbtn"+i==listbtn){
			document.getElementById(listbtn).className="current";
		}else{
			document.getElementById("listbtn"+i).className="";
		}
		if ("listcnt"+i==listcnt){
			document.getElementById(listcnt).className="";
		}else{
			document.getElementById("listcnt"+i).className="hidden";
		}
	document.getElementById("listcnt").className="display";
	}
}