Tormtor School( Drow of the Underdark, p. 57)
You have learned House Tormtor's fighting technique from its weapon masters
If you deal damage on a melee attack with a javelin, you can then throw that javelin at any other target within 30 feet as a swift action (using your highest base ranged attack bonus).
You take no penalty when making a melee attack with a javelin.
You gain a +1 bonus on damage rolls with javelins.