- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
    if (qName) {
        elementName = qName;
    }

    if (self.currentPart) { // Are we in a
        // Check for standard nodes
        if ([elementName isEqualToString:@"departure"] || [elementName isEqualToString:@"arrival"] || [elementName isEqualToString:@"vehicle"] || [elementName isEqualToString:@"trackfrom"] || [elementName isEqualToString:@"trackto"] ) {
            self.currentProperty = [NSMutableString string];
        }
    } else if (self.currentLink) { // Are we in a
        // Check for standard nodes
        if ([elementName isEqualToString:@"departure"] || [elementName isEqualToString:@"arrival"] || [elementName isEqualToString:@"info"]) {
            self.currentProperty = [NSMutableString string];
        // Check for deeper nested node
        } else if ([elementName isEqualToString:@"part"]) {
            self.currentPart = [[Part alloc] init]; // Create the element
        }
    } else if (self.currentSchedule) { // Are we in a  ?
        // Check for standard nodes
        if ([elementName isEqualToString:@"from"] || [elementName isEqualToString:@"to"]) {
            self.currentProperty = [NSMutableString string];
        // Check for deeper nested node
        } else if ([elementName isEqualToString:@"link"]) {
            self.currentLink = [[Link alloc] init]; // Create the element
        }
    } else { // We are outside of everything, so we need a
        // Check for deeper nested node
        if ([elementName isEqualToString:@"schedule"]) {
            self.currentSchedule = [[Schedule alloc] init];
        }
    }
}