function progress(id) {
			
	document.getElementById(id).style.display = document.getElementById(id).style.display == "none" ? "" : "none";
	document.getElementById(id+2).style.display = document.getElementById(id+2).style.display == "none" ? "" : "none";
	document.getElementById(id+1).style.display = document.getElementById(id+1).style.display == "" ? "none" : "";
}