function isloaded = loadGlobalNamespace()
   % loadGlobalNamespace handles the global variables and routines used within
   % wavefrom.
   %
   
   %global mep2dep dep2mep
   
   global WAVEFORM_HISTORY
   WAVEFORM_HISTORY = true; %keep track of waveform modifications
   
   %time converter functions
   % matlab date (# days since 0 JAN 0000)
   %mep2dep = inline ('(matepoch - 719529) * 24 * 3600','matepoch');
   % antelope epoch( # secs since 1 JAN 1970 )
   %dep2mep = inline ('(dep / 86400 + 719529)', 'dep');
   
   %default period for envelopes
   global DEFAULT_PERIOD
   DEFAULT_PERIOD = 10; %seconds
   
   global SECONDS_IN_DAY
   SECONDS_IN_DAY = 24 * 60 * 60;
   
   
   isloaded = true;
end