def check_duration(self, value):
vd.fNumber(value)
vd.fGrtThanEq(value,0)
def check_end(self, value):
val = value.strip()
if (val==''):
return
vd.fNumber(value)
vd.fGrtThanEq(value,0)
def check_load(self, value):
vd.fNumber(value)
vd.fGrtThanEq(value,0)
def check_begin(self, value):
vd.fNumber(value)
vd.fGrtThanEq(value,0)