Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.
As @lastchancename as suggested, give each of your 3 buttons a value to the power of 2.
A=1
B=2
C=4
If you use these values to tell which button is pressed you will get unique values.
valA + valB + valC = buttonfunction.
NO buttons pressed. buttonfunction = 0;
A button pressed. buttonfunction = 1;
B button pressed. buttonfunction = 2;
C button pressed. buttonfunction = 4;
A and B pressed. buttonfunction = 1+2 =3
B and C pressed. buttonfunction = 2+4 =6
A and C pressed. buttonfunction = 1+4 =5
A,B,C pressed. buttonfunction = 1+2+4 = 7.
Then use select..case to run your different functions.
This will save all those if ..else.. statements as you will have a simple select and a cascade of case 0, case 1, case 2 etc statements.
I hope that is understandable, its late here, I have to get my beauty sleep. :o
Tom... 