function display_desc(obj){obj.style.display=""; effects.style.display="none";howto.style.display="none";desc1.style.display="none";howto1.style.display="none"; effects1.style.display="none";desc2.style.display="none";	}function display_effects(obj){obj.style.display=""; desc.style.display="none";howto.style.display="none"; desc1.style.display="none";howto1.style.display="none"; effects1.style.display="none";desc2.style.display="none";	}function display_howto(obj){obj.style.display=""; desc.style.display="none";effects.style.display="none";desc1.style.display="none";howto1.style.display="none"; effects1.style.display="none";desc2.style.display="none";	}function display_desc1(obj){obj.style.display=""; desc.style.display="none";howto.style.display="none";effects.style.display="none";effects1.style.display="none";howto1.style.display="none";desc2.style.display="none";	}function display_effects1(obj){obj.style.display=""; desc.style.display="none";howto.style.display="none";effects.style.display="none";desc1.style.display="none";howto1.style.display="none"; desc2.style.display="none";	}function display_howto1(obj){obj.style.display=""; desc.style.display="none";desc1.style.display="none";desc2.style.display="none";howto.style.display="none"; effects.style.display="none";effects1.style.display="none";}function display_desc2(obj){obj.style.display=""; desc.style.display="none";desc1.style.display="none";howto.style.display="none";effects.style.display="none";effects1.style.display="none";howto1.style.display="none";}function display_desc3(obj){obj.style.display=""; desc.style.display="none";desc1.style.display="none";desc2.style.display="none";howto.style.display="none";effects.style.display="none";effects1.style.display="none";howto1.style.display="none";}