A twitter enabled Arduino alarm system

A friend and I have been working on a simple alarm system for a while to help guard our rooms. I think the project has finally reached the finished stage, or at least getting close. This is a continuance of the project i posted about here http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1248484845/8#8.

I am posting in hopes that someone may be able to help me understand what i can do to make my code smaller. It works almost perfectly, in that if a sensor is tripped, it updates the lcd to show that a sensor was tripped, and also sends a twitter to let you know about it if you are away.

You can read more about the setup we have going to: http://www.grinanbarrett.com/index.php?option=com_content&view=article&id=59:a-twitter-enabled-alarm-system&catid=34:arduino&Itemid=54

if you would like to see what it twitters, you can see that here:
http://www.twitter.com/grinanbarrett2
Can anyone tell me what i can change to shrink my code? I know that I am not a programmer, therefore, there must be things that I have here that are unncessary, or could be reworded to be smaller.

here’s the code we are working with

#include <LiquidCrystal.h>
#include <Ethernet.h>
#include <Twitter.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192, 168, 1, 17 };
byte gateway[] = { 192, 168, 1, 2 };
byte subnet[] = { 255, 255, 255, 0 };

Twitter twitter("USERNAME:PASSWORD");

// LiquidCrystal display with:
// rs on pin 12
// rw on pin 11
// enable on pin 10
// d4, d5, d6, d7 on pins 5, 4, 3, 2
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);


const byte strobePin = 28;    // pin for the strobe light
const byte windowPin = 8;       // pin for the window plunger
const byte relayPin = 17;      // pin for the Relay (this was the ledPin, this is just easier for me to understand than ledpin.)
const byte pirPin = 9;        // pin for the pir sensor
const byte window2Pin = 14;    // pin for window 2
const byte disableWinPin = 15;    //  NEW DISABLE BUTTON
const byte disablePir = 16;        // NEW DISABLE BUTTON 2

boolean currentState = LOW;    // holder for the current state of the alarm
boolean previousState = HIGH;  // holder for the previous state of the pin
boolean currentDisState = LOW;
boolean previousDisState = HIGH;

int Tripped=0;                  // variable to hold the count of times the alarm was tripped
int Disabled=0;

void setup() {
  pinMode(relayPin, OUTPUT);
  pinMode(pirPin, INPUT);
  pinMode(strobePin, OUTPUT);
  pinMode(windowPin, INPUT);
  pinMode(window2Pin, INPUT);
  pinMode(disableWinPin,INPUT);
  pinMode(disablePir, INPUT);
  digitalWrite(relayPin, LOW);
  
  digitalWrite(pirPin, LOW);    // this sets the initial state of the pin
  digitalWrite(windowPin, LOW);   // this sets the intial state of the pin
  digitalWrite(window2Pin, LOW); // this sets the intial state of the pin
  digitalWrite(disablePir, LOW);
  digitalWrite(disableWinPin, LOW);
  
  lcd.begin(2, 12);        // This sets the lcd to a two line, 16 char display
  lcd.clear();             // clear the display
  
  Ethernet.begin(mac, ip, gateway, subnet);
  Serial.begin(9600);
  }

void CheckWindow(){
    currentState = digitalRead(windowPin);    // read the pirpin and store the state 
    if (currentState!=previousState && currentState==LOW) {    // do comparison to see if we have a change or not
    digitalWrite(relayPin, LOW);    // alarm not tripped -  relaypin is low
      } else {
        Trip();                    //  alarm is tripped, relaypin goes high
        delay(20);                      // this is to debounce the input
        digitalWrite(relayPin, HIGH);    // turn the relay on
        twitter.post("Window one alarm has been tripped");
        
          int status = twitter.wait();
        if(status == 200) {
          Serial.println("OK.");
        }else{
          Serial.print("Failed: code ");
          Serial.println(status);
        }
              delay(25000);                      // keep relay on and stop checking for low state for 25 seconds
        previousState = currentState;        // set the previous state so we can compare on the next loop through
    }
}

void CheckWindow2(){
     currentState=digitalRead(window2Pin);      // Read the windowPin and store as currentstate
     if(currentState!=previousState && currentState==LOW){    // do comparisons to see if we have a change or not
     digitalWrite(strobePin,LOW);      // alarm is not tripped - strobe pin is low
      }else{
        digitalWrite(relayPin,HIGH);      // alarm is tripped - strobe pin is high
        Trip();        // alarm function to count alarm and display to lcd
         twitter.post("Window two alarm has been tripped");
        
          int status = twitter.wait();
        if(status == 200) {
          Serial.println("OK.");
        }else{
          Serial.print("Failed: code ");
          Serial.println(status);
        }
        delay(25000);                  // keep strobe on for 25 seconds 
        previousState = currentState;      // set the previous state so we can compare on the next loop through
       }
}

void CheckPir(){
     currentState=digitalRead(pirPin);
     if(currentState!=previousState && currentState==LOW){
     digitalWrite(strobePin,LOW);
     }else{
       digitalWrite(strobePin,HIGH);
       Trip();
        twitter.post("Pir alarm has been tripped");
        
          int status = twitter.wait();
        if(status == 200) {
          Serial.println("OK.");
        }else{
          Serial.print("Failed: code ");
          Serial.println(status);
        }
       delay(15000);
       previousState = currentState;
   }
}

 void Trip(){            // tripped state function
   Tripped++;
  lcd.clear();
  lcd.print("Alarm tripd ");    //  Printed on default line on lcd
  lcd.setCursor(0,1);            // moves the cursor to the second line
  lcd.print(Tripped);            // prints on the second line.
  lcd.print(" Times :=)");
  lcd.home();                    // Returns cursor to first line.
 }
  
  
void CheckDisable(){
       currentState=digitalRead(disableWinPin);
     if(currentState!=previousState && currentState==LOW){
      //no window alarm disable
     }else{
       lcd.print("Win Pin Off");
       Disabled=1;
        delay(250);
       previousState = currentState;
   }
   currentState=digitalRead(disablePir);
   if (currentState!=previousState && currentState==LOW){
   //no pir alarm disable
   }else {
  lcd.print("PIR Pin Off");
  Disabled=2;
  delay(250);
  previousState=currentState;
  }
  
}
  void loop() {
    if (Disabled==0){    // 0 - all alarms on  1 - window alarm off pir on  2 - window on pir off 
      CheckWindow();
      CheckWindow2();
      CheckPir();
      CheckDisable();
       }else if(Disabled==1){
          CheckPir();
          CheckDisable();         
        } else if(Disabled==2){
        CheckWindow();
        CheckWindow2();
        CheckDisable();
      } 
    }

Thanks in advance!