var bodies = ["Kerbol", "Moho", "Eve", "Eve's satellite Gilly", "Kerbin", "Kerbin's satellite Mun", "Kerbin's satellite Minmus", "Duna", "Duna's satellite Ike", "Dres", "Jool", "Jool's satellite Laythe", "Jool's satellite Vall", "Jool's satellite Tylo", "Jool's satellite Bop", "Jool's satellite Pol", "Eeloo"] var orbittype = ["Equatorial", "Polar"] var landingarea = ["North Pole", "Equator", "South Pole"] For a Duna equatorial orbit all i have to do is call document.write(bodies[7] + " orbit type: " + orbittype[0]); Muuuuch easier.