public void CloseHook(Load hookedLoad)
 {
     hookedLoad.transform.position = transform.position;                 //center load on hook
     m_fixedJoint = gameObject.AddComponent <FixedJoint>();              //creating the joint
     m_fixedJoint.connectedBody = hookedLoad.GetComponent <Rigidbody>(); //attaching the load
     hookFree      = false;
     m_currentload = hookedLoad;
     m_loadCanvas.HighLightLoad(m_currentload, true);
     hookedLoad.CreateDropZone();
 }