// Using a momentary switch to run different functions 
// each time it is pressed.

// Variables
int mySwitch = 0;
int switchPin = 8;
// Variables to track toggling of the switch
int whichToggle = 1; 
int toggleFlag = 1;
// Timer variables
long timer = 0;
int offset = 1000;

// Setup
void setup() {
 Serial.begin(9600);
 pinMode(switchPin, INPUT);
 timer = millis();
}

// Das loop...
void loop() {
 // Detect Switch
 mySwitch = digitalRead(switchPin);
 if(!mySwitch) { 
   if (toggleFlag) { 
     whichToggle = !whichToggle; 
     toggleFlag = 0; 
   }
 }else{
   toggleFlag = 1;
 } 
 // Timer
 if (timer + offset < millis()) {
   if(whichToggle) {
     doThingA();
   }else{
     doThingB();
   } 
 }
}

// Do Thing A
void doThingA() {
 Serial.println("Doing thing A");
} 

// Do Thing B
void doThingB() {
 Serial.println("Doing thing B");
}