What kind of paint should i use for an indoor wood railing? Should i use a different paint for moldings?

The stairs and railing are already painted, i just want to go over them. I dont know what kind of paint i should use on them. I also want to paint some moldings. Should i use a different kind of paint for the moldings or can I use the same on both?What kind of paint should i use for an indoor wood railing? Should i use a different paint for moldings?
Use a quality semi-gloss or satin finish latex enamel for the railing. You can use the same paint on base, casing, etc. I always use Benjamin Moore Regal semi-gloss when I paint trim. It covers nicely, and holds up to traffic. Hope this helps.