Random Movement?

I've been working on a script to move my 'pet' randomly, as long as it stays within 5 meters of me. It compiles fine, and gets to the beginning of the running state, but after that it doesn't do anything. I'm guessing it's a problem with my formula, but I figured I'd ask here.
So...
Any idea why this isn't working?

//This script will enable an object to wander freely, returning it to
//its home position if it strays more than 5m away.
vector home;
vector current;
vector target;
integer targetID;
integer distance;

default
{
    state_entry()
    {
        llSetStatus (STATUS_PHYSICS, TRUE);
        llSetStatus (STATUS_PHANTOM, TRUE);
        llSetStatus (STATUS_ROTATE_X | STATUS_ROTATE_Y, FALSE);
        llSetStatus (STATUS_BLOCK_GRAB, TRUE);
//Set current position as home
        vector home = llGetPos();
        vector current = llGetPos();
//Continue to next state
        state running;
    }
}
state running
{
    state_entry()
    {
        llSay (0, "Running state activated");
//Set the vector 'target' to a random destination no more than 5m away
//from current.
        vector target = (current + <llFrand(10) - 5,llFrand(10) - 5,0>);
        targetID = llTarget (target, 1);
        llMoveToTarget (target, 5);
    }
    at_target(integer tnum, vector targetpos, vector ourpos)
    {
        llTargetRemove (targetID);
        llStopMoveToTarget();
        vector current = llGetPos();
        float distance = llVecDist (current, home);
        if (distance > 5)
        {
            vector target = home;
        }
        if (distance < 5)
        {
            vector target = home;
        }
        else
        {
            state running;
        }
    }
}

Fixed! Thank you, cua Curie!

Might you post what the fix was? Not that I'm specifically dying to know, but it would be overall helpful for anyone wishing to learn something

No problem. Though I'm just going from memory because I don't have access to the actual script right now.

Basically, my problem was that I had the script seperated into three different states, all calling variables that were only defined in one state. I just condensed the whole thing into one state, repeated the llMoveToTarget, and voila!

//This script will enable an object to wander freely, returning it to
//its home position if it strays more than 5m away.
vector home;
vector current;
vector target;
integer targetID;
integer distance;

default
{
    state_entry()
    {
        llSetStatus (STATUS_PHYSICS, TRUE);
        llSetStatus (STATUS_PHANTOM, TRUE);
        llSetStatus (STATUS_ROTATE_X | STATUS_ROTATE_Y, FALSE);
        llSetStatus (STATUS_BLOCK_GRAB, TRUE);
//Set current position as home
        vector home = llGetPos();
        vector current = llGetPos();
//Set the vector 'target' to a random destination no more than 5m away
//from current.
        vector target = (current + <llFrand(10) - 5,llFrand(10) - 5,0>);
        targetID = llTarget (target, 1);
        llMoveToTarget (target, 5);
    }
    at_target(integer tnum, vector targetpos, vector ourpos)
    {
        llTargetRemove (targetID);
        llStopMoveToTarget();
        vector current = llGetPos();
        float distance = llVecDist (current, home);
        if (distance > 5)
        {
            vector target = home;
        }
        if (distance < -5)
        {
            vector target = home;
        }
        else
        {
        vector target = (current + <llFrand(10) - 5,llFrand(10) - 5,0>);
        }
        targetID = llTarget (target, 1);
        llMoveToTarget (target, 5);
    }
}