setTargetRandomPosition(integer lookInMoveDirection){

    rotation deltaRotation = ZERO_ROTATION ;

    if (!stopStartAll){

        vector currentPosition = llGetPos();
        //
        // don't allow object to go below the z position it was rezzed at
        //
        float zPos = fRandPlusMinus(travelDistance.z);
        if (zPos + rezPosition.z < rezPosition.z)  zPos = 0;
        //
        // how much are we going to move this round
        //
        vector deltaPosition = <fRandPlusMinus(travelDistance.x), fRandPlusMinus(travelDistance.y), zPos>;

        deltaPosition.x = keepInBounds(currentPosition.x, deltaPosition.x, rezPosition.x, targetBoundary.x);
        deltaPosition.y = keepInBounds(currentPosition.y, deltaPosition.y, rezPosition.y, targetBoundary.y);
        deltaPosition.z = keepInBounds(currentPosition.z, zPos,            rezPosition.z, targetBoundary.z);


        vector lookAtPos = currentPosition + deltaPosition;

        if (lookInMoveDirection && !targetStayLevel) {
            llLookAt(lookAtPos, 3.0, 1.0);
            //vector newV = lookAtPos - currentPosition;
            //llSetRot(llRotBetween( <0,0,1>, llVecNorm(newV)));

        } else if (targetStayLevel) {
            llLookAt(<lookAtPos.x, lookAtPos.y, currentPosition.z>, 3.0, 1.0);
        }
        //
        // how far are we moving
        //
        float distance = llVecDist(ZERO_VECTOR, deltaPosition);
        //
        // how long do we want to take to get there
        //
        float timeValue = frameDelta(distance/ travelSpeed);
        //
        isMoving = TRUE;
        llSetKeyframedMotion(
            [deltaPosition, deltaRotation , timeValue],
            [KFM_DATA, KFM_TRANSLATION|KFM_ROTATION, KFM_MODE, KFM_FORWARD]);

    }
}

float frameDelta(float time)
{
    // take the delta times and align them to SL frames
    time = llRound(time/(1/45.0))/45.0;
    if (time > 0.12)
        return time;
    return 0.133333;
}

float keepInBounds(float currentPosition, float delta, float startValue, float maxValue){
    //
    // if currentPosition + delta is outside the bounding box, reverse the distance to move to try
    // and keep within the bounds
    //
    if (currentPosition + delta < startValue + maxValue  && currentPosition + delta > startValue - maxValue) return delta;
    return delta * -1;
}

float fRandPlusMinus(float value){
    if (value == 0) return 0;
    // return from -value to +value
    value = llFrand(value - 1) + 1;
    if (llFrand(100) + 1 > 50) value = -value;
    return value;
}