Scrapy jump into page

class mysearchspider(Spider):
    name = "mysearchspider"
    allowed_domains = ["example.com"]
    start_urls = [
        "http://www.example.com/category/234627",
    ]
    visitedURLs = Set()

    def parse(self, response):
        products = Selector(response).xpath('//*[@class="itemCell"]')
        for product in products:
            item = ItemScrapyCategory1()
            item['url'] = product.xpath('div[2]/div/a/@href').extract()[0]
            urls = Set([product.xpath('div[2]/div/a/@href').extract()[0]])
            for url in urls:
                if url not in self.visitedURLs:
                    request = Request(url, callback=self.productpage)
                    request.meta['item'] = item
                    yield request

    def productpage(self, response):
        specs = Selector(response).xpath('//*[@id="Specs"]/fieldset')
        itemdict = {}
        for i in specs:
            test = i.xpath('dl')
            for t in test:
                name = t.xpath('dt/text()').extract()[0]
                itemdict[name] = t.xpath('dd/text()').extract()[0]
        print itemdict
        item = response.meta['item']
        image = Selector(response).xpath('//*[@id="synopsis"]/div/div/div/a/span/img/@src').extract()
        item['image_urls'] = image