Arduino Counter LCD Display

//Arduino Counter With LCD Display
//For using with HD44780 LCD Shield
#include <LiquidCrystal.h>
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);
byte glyphs[5][8] = {
{ B11111,B11111,B00000,B00000,B00000,B00000,B00000,B00000 },
{ B00000,B00000,B00000,B00000,B00000,B00000,B11111,B11111 },
{ B11111,B11111,B00000,B00000,B00000,B00000,B11111,B11111 },
{ B11111,B11111,B11111,B11111,B11111,B11111,B11111,B11111 },
{ B00000,B00000,B00000,B00000,B00000,B01110,B01110,B01110 } };
const int digitWidth = 3;
const char bigDigitsTop[10][digitWidth]={ 3,0,3, 0,3,32, 2,2,3, 0,2,3, 3,1,3,
3,2,2, 3,2,2, 0,0,3, 3,2,3, 3,2,3};
const char bigDigitsBot[10][digitWidth]={ 3,1,3, 1,3,1, 3,1,1, 1,1,3, 32,32,3,
1,1,3, 3,1,3, 32,32,3, 3,1,3, 1,1,3};
char buffer[12];
void setup ()
{
lcd.begin(16,2);
for(int i=0; i < 5; i++)
lcd.createChar(i, glyphs[i]);
for(int digit = 0; digit <= 9; digit++)
{
showDigit(digit, 2);
delay(1000);
}
lcd.clear();
}
void loop ()
{
int number = millis() / 1000;
showNumber( number, 0);
delay(1000);
}
void showDigit(int digit, int position)
{
lcd.setCursor(position * (digitWidth + 1), 0);
for(int i=0; i < digitWidth; i++)
lcd.write(bigDigitsTop[digit][i]);
lcd.setCursor(position * (digitWidth + 1), 1);
for(int i=0; i < digitWidth; i++)
lcd.write(bigDigitsBot[digit][i]);
}
void showNumber(int value, int position)
{
int index;
itoa(value, buffer, 10);
for(index = 0; index < 10; index++)
{
char c = buffer[index];
if( c == 0)
return;
c = c - 48;
showDigit(c, position + index);
}
}