Creating an Object

I am making a side scroling game of somesorts where the player appears to walk to the right but really its a bunch of random objects moving towards and past the player. I want to spawn an object every 1.5 seconds where it can be anywhere below the player that is on screen but never more that 50 pixels above him. Anyone know of a way for me to do this?

You need to set Y to random(Player.Y-50,whatever height) for spawning objects.