L/F - Andy can walk you right through it - he does a very good job of explaining things. <img src="/ubbthreads/images/graemlins/wink.gif" alt="" /> Especially with pictures ! <img src="/ubbthreads/images/graemlins/grin.gif" alt="" /> <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />