Simple seconds timer

I wanted the timer which can time seconds and it made.
I am pleased if a help can be given to not only me but you.
It can time till 99 minutes and 99 seconds.
The operation is made ​​easy with gloved hands to start and stop and reset. Because you can be manipulated by tilting it.

[Directions for use]
Number button : Time is inputted.
Start button : Countdown is started.
Stop button : The stop of countdown. Alarm is suspended when the alarm after the end of countdown sounds. A stop button changes to a start button by the start of countdown.

Reset button : You can set the past five data sets.
Clear button : One character is cleared.
AC button : All are cleared. (It is set as 00M00S)
Inclination switch
: If you switch on it , you can manipulate by inclining.
Screen facing up.
Lift the home button side. Then resets.
Lift the right side. Then Starts.
Lift the left side. Then Stops.

Sound effect:Mr.Taira Komori(http://taira-komori.jpn.org/freesound.html)