dynamic S/R
inputs:
iMode("No"), { if "auto" code sets xPeriods, if not "auto" code uses iPeriods}
iPeriods(05),
HighColor( red),
LowColor( blue) ;
variables:
xPeriods(60),
xInterval(0),
sFirstPass(true),
HavePrevLines( false ),
TLHigh( 0 ),
TLLow( 0 )...