var last_box = "";

function box_selected( box_id )
{
	if( last_box != box_id )
	{
		hide_box( last_box );

		last_box = box_id;
		show_box( last_box );
	}
}

function hide_box( box_id )
{
	var box = get_element( "box_" + box_id );
	box.className = "max-box";
}

function show_box( box_id )
{
	var box = get_element( "box_" + box_id );
	box.className = "max-box-sel";
}