trouble with analog inputs

hi im trying to find a code that will alow me to blink an led when my arduino recevies an analog input from an exelerometer any tips or code would be helpfull. thanks. i got the folowing snipit from another member but ive been strugaling to incorporate in to a full runable code. :-?

int analogVal = analogRead(somePin);
if(analogVal > someRandomNumber)
{
// Do some random thing
}

I am far from an expert, but giving it a try anyways :stuck_out_tongue:

int ledPin =  13;    // LED connected to digital pin 13

void setup() {                
  // initialize the digital pin as an output:
  pinMode(ledPin, OUTPUT);     
}


void loop() {
  int analogVal = analogRead(somePin);
  if(analogVal > someRandomNumber) {
    digitalWrite(ledPin, HIGH);   // set the LED on
    delay(1000);                  // wait for a second
    digitalWrite(ledPin, LOW);    // set the LED off
    delay(1000);                  // wait for a second
  }  
}

thanks a bunch. ;D