DTMF and PIC for Remote Control

[mike1939]

I have new coding problem, using TMR0 I do not understand........put simply

loop1:
  if intcon.2 = 0 then loop1  
  intcon.2 = 0
  clicks=clicks+1
  if clicks >=1900 then
  clicks=0
  high pin11:pause 100:low pin11  'Flash LED for 10th of second
  secs=secs+1
  endif
  if secs>=5 then 
  high pin10:pause 100:low pin10
  gosub nowt
  secs=0 'Reset secs
  endif
  goto loop1  
  end
  nowt: 
  return

But fails if 
              gosub nowt
              endif
              goto loop1  
              end
              nowt: 
              secs=0 'Reset secs
              return

The inclusion of any code in the sub-routine at nowt: causes whole to fail?