explode.ino

void explode(String message)
{
  int count = 0;
  do
  {
      commaPosition = message.indexOf(':');
      if(commaPosition != -1)
      {
          Serial.println( message.substring(0,commaPosition));
          
          
          // clipping off the message string
          message = message.substring(commaPosition+1, message.length());
          
          
      }
      else
      {  // here after the last comma is found
         if(message.length() > 0)
           Serial.println(message);  // if there is text after the last comma,
                                     // print it
                                     
           
           
      }
   }
   while(commaPosition >=0);
}

stringToNumber.ino

int stringToNumber(String thisString) {
    int i, value, length;
    length = thisString.length();
    char blah[(length+1)];
    for(i=0; i<length; i++) {
        blah[i] = thisString.charAt(i);
    }
    blah[i]=0;
    value = atoi(blah);
    return value;
}