function Change(id){
	
	if( document.getElementById(id).style.display == "none" ){
		document.getElementById(id).style.display = "";
		document.getElementById('s_'+id).innerHTML = "[-]";
	}else{
		document.getElementById(id).style.display = "none";
		document.getElementById('s_'+id).innerHTML = "[+]";
	}
	
}