Where can I find a simple rezzing script?

I'm trying to find a simple script that will rez an item placed in the same prim (say you designate the item name in the script) and if the item is deleted or taken it will rez another. My rides I've bought use this and I'd like to use this method for rezzing other items that people use.

Not any type of zero prim rezzer this would simply rez an item and then when that item is moved it would rez another in the same place.

Thanks ahead of time.

Like:

default
{
touch_start(integer total_number)
{
llRezObject("Object", llGetPos() + (llRot2Fwd(llGetRot())*4), ZERO_VECTOR, llGetRot(), 0);
}
}

You can make the object temp-on-rez so it poofs when the user gets up.

Wait, where am I? Scripting tips? Not really the right forum. Curses, new posts!

Thank you so much! How can I have this rez another if the vehicle is moved?

In the object_rez event that you get when rezzing the object start a repeating sensor:

object_rez(key objectID)
{
// scan for the rezzed object every 5 seconds
llSensorRepeat("", objectID, PASSIVE|ACTIVE, <rez distance>, PI, 5.0);
}

sensor(integer num) {} // empty senspr event required

no_sensor()
{
llSensorRemove();
// put rezzing code here
}