LlGetOwnerKey

Returns a key that is the owner of object id

If id is not in the same sim then id is returned.

key owner;
 
default
{
    state_entry()
    {
        owner = llGetOwner();
        llListen(1, "", "", "");
    }
    on_rez(integer a)
    {
        owner = llGetOwner();
    }
    listen(integer chan, string name, key id, string msg)
    {
        if(llGetOwnerKey(id) == owner)
        {//Only triggers if what spoke is the owner or if they share the same owner
            llOwnerSay(name + " has the same owner as me ^_^");
        }
    }
}

Functions