<!--
id_old = 2;
function show(id){
	document.getElementById(id_old).className = 'el_off';
	document.getElementById(id).className = 'el_on';
	id_old = id;
}
function cl(){
	document.getElementById('0').className = 'el_off';
	document.getElementById('4').className = 'el_off';
	id_old = id;
}
//-->