Salve,
sto impazzendo da giorni praticamente avrei bisogno che un determinato link ad esempio www.prova1234.it mi restituisca un valore random prelevato da un file xml presente in rete. Esempio:


codice:
<offers><product id="125189674"><name>APPLE iPad Air Wifi 16Gb</name><merchantName>Euronics</merchantName><merchant>euronics</merchant><price>399,00</price><deliveryCost>11,00</deliveryCost><totalCost>410,00</totalCost><availability>1</availability><availabilityDescr>Disponibile</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=aFRQR3NCdFRuV0xDN2FiN3ZwUDNTYm1xOTlZQ0dkNzlQM0NXaS8wZEJ2QWltOElIVXdZaU8zQnNKMVhkVDlsalU1STlmZUVoNVpHS2oxRTI2QnlQRC9UdVh2UjJUaUFoS1puMHhvQkFkcjQ3anAyZHE5aFVtOWtua1puOUJmQzVQWjlnTXBkM0xpVFJTRS80bksxanNVYzdQNFN1ajBRRDY1cGczWkVGQ3JPWjhXZnpjTU1lN2xGMXE4L1BJWUQ5Y3pPcUltWVVCZTlYWi9VREkxOHdudG5DRzJ2YnhGeFllRzdDZ0NrcVJ4N1lydEhBWlFXWENMSjNBOUVJaE1NMGcrU1NSWXFtakMvVlhlWHhxRHJzWHQ1OFZiVWM2am5GNW9FdW5EbFNEOXBFWXYwRW9xYzFNNGl6QXlOS3VVMng1&sid=</url><description>Display Retina 9,7 - memoria interna 16GB - Chip A7 con architettura a 64 bit e coprocessore di movimento M7 - Fotocamera iSight 5Mp - FaceTime HD - Batteria integrata ricaricabile ai polimeri di litio da 32,4 wattora - Sistema operativo iOS 7</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/125189674.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/125189674.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/euronics.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="116939212"><name>Tablet Apple iPad Air 16GB WI-FI Grigio siderale</name><merchantName>ProKoo</merchantName><merchant>prokoo</merchant><price>456,00</price><totalCost>456,00</totalCost><availability>1</availability><availabilityDescr>Disponibile</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=a0RBSWFuY0tXK3Q3WmZlTURwNDhHTDJaTjljRmZWeTN3U2c3TEh2TEh6Ty9NNTFyYXpqa0ZBV2VLamp4YWxWTVFlVDZiOXk0VXVSbnJ1Y1FLRWI4d29HREwwU3NGMTh4ajdBT3QzSHpiYktqaXVyZnVmblRMVEdpaU9qN0FWbGVaSnBETWxnWlNvMk1Gc1hMditpWG9yYWtUMlBqeXdadWtiY0JhdE94TUhFWS9BU1RZYXNNcGlMV3pMcHcrS1ZwbmM1NjV6OTAwOVZlbFE5eEx0akJZMDhsdXRCODhPcks2dVQ0a3RYVWRDV3ViUVpWVGFZaVVyRlk2dVF5OVBHRkR4ZGVtUTZleGQrdThRUUlrL1RrSlFBb3ZEbW5RQjhhalZGZFJQbVVhbGRTa1pyRlRxWjNUa1o2ekhCYlhFOWdETTQrMjdzVjVFRT01&sid=</url><description>MD785FD/A</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/116939212.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/116939212.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/prokoo.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="124331802"><name>APPLE iPad Air Wifi 16Gb</name><merchantName>Euronics</merchantName><merchant>euronics</merchant><price>399,00</price><deliveryCost>11,00</deliveryCost><totalCost>410,00</totalCost><availability>1</availability><availabilityDescr>Disponibile</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=aFRQR3NCdFRuV0ljYmlpRmU3SFBTVTlNQ1FpVzZhc29aOElZM2JTR2Y5eTZ6bkJjUWk5Tk9JdWduc3FpWG5SVDdTejl5N005dmJ1d3ZzZjVZaEt6ZVJQRDczcHJCUjh0d1N2bm1LeE1SR1dWMVVWa2kza1JFSnhLY29WbjlscENEeUdSY01CcE1HOS9rckdGcHh1SzJRQXBOQkwyNmNZZDZtcmtMYkhDdW5BcXV4QXUvZnlNaUxVQXJvNTNBTXBqQmdhbDdCa1EzM0ZEUDN3RDlEdVBoK3hpWGtKeWgwcUo0Q051UUFMYTRGY0JXaDdQdGw2U2tEMmxpNzZLODZ2UUx0OUg2empMbm80TVB5WWgvT2NNZW1OdEFNRVhHMFluQjRFKzU3NG9NaktaK0RoY0RDSWEyMzdWYUkvV0p4czY1&sid=</url><description>Display Retina 9,7 - memoria interna 16GB - Chip A7 con architettura a 64 bit e coprocessore di movimento M7 - Fotocamera iSight 5Mp - FaceTime HD - Batteria integrata ricaricabile ai polimeri di litio da 32,4 wattora - Sistema operativo iOS 7</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/124331802.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/124331802.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/euronics.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="122166034"><name>IPAD AIR WI-FI 16GB SILVER IN</name><merchantName>EglobalMarket</merchantName><merchant>eglobalmarket</merchant><price>415,84</price><deliveryCost>11,83</deliveryCost><totalCost>427,67</totalCost><availability>1</availability><availabilityDescr>Disponibile</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=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&sid=</url><description>MD788TY/A - IPAD AIR WI-FI 16GB SILVER IN</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/122166034.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/122166034.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/eglobalmarket.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="125388922"><name>Apple Apple iPad Air Wi-Fi 16GB</name><merchantName>MarcoPolo shop</merchantName><merchant>marcopoloshop</merchant><price>479,00</price><totalCost>479,00</totalCost><availability>1</availability><availabilityDescr>Disponibile</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=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&sid=</url><description>Apple Air Wi-Fi 16GB iPad, 1.3 GHz, Apple, A7, 16 GB, Flash, 246.4 mm (9.7 )</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/125388922.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/125388922.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/marcopoloshop.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="120610849"><name>APPLE IPAD AIR WIFI 16GB GRIGIO SIDERALE</name><merchantName>UniEuro</merchantName><merchant>unieuro</merchant><price>479,00</price><totalCost>479,00</totalCost><availability>3</availability><availabilityDescr>Disponibilità limitata</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=aFRQR3NCdFRuV0loTnZDV1F0L2pIejB1VmJDTUgvYlZFZ1N6bGtob045UXh5NlVsZVlFNWk0eER1V3Y0NnBSWU1MTGRTRkpobDRBR0JXNUV0bitCbythaTVwZUdubEJVVUpPMXpMaXpZVmNDalRJcFlzV1Q5Wlc5dVVvVm9SdUlJSkVEWHZCaWV1WWZqWW5kQ0NIb0FVNTFzRUNTTkJGVnh4YUh2NkpjcU44cW43cHpVU0xSNWh2d05zdmxvZmZVTFNteGNWSzhiTm85TDZwS3E2OXBaZUtXelEwZytac3phQmJaVkszRWdLdnBGRGpyZ3ROUStFWGR3bnhqWUMwblZWS3J3RzEwaVUyTGpmdFZSanpQMUhEdjZLWnlveWVMc3RsRThPNTVNOHM3dVVPaUg5c3RrRDhrajJ6VVZCaVpGN3JJWHBKUmcwRHY5VHZRditzazJQei94TGcvS3k4VlRCNVVKVzRUUzF3SktyL1E2Nld6RkQ2VmNFenFGY1NaM1AyaFF2dU1UTDFYa2RDMTc0T3dvOWpycWR4T1lhMzV3bmVMMlN5dTh4WkFRdnJXOUxoc0doVC9sUWFuc1dIS0ZZQlJYMzZBZ0VkbnBnRVdzN1h3VFA0RWNndmIvaktxa0d6eFJvOG9xL1YvTXdFN0J4UC84TnZDcmJJWnZHdjA3OWRBelRJREhlOD01&sid=</url><description>APMD785TY/A - Apple iPad Air Wi-Fi - Tablet - 16 GB - 9.7 IPS ( 2048 x 1536 ) - fotocamera posteriore + fotocamera anteriore - Wi-Fi, Bluetooth - grigio spazio</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/120610849.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/120610849.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/unieuro.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="124519907"><name>APPLE MD788TY IPAD AIR 16 GB WIFI COLORE BIANCO (MD788/TY) ( Garanzia Italia ) - NO COMMISSIONI CARTA E PAYPAL - ( Findomestic fino a 20 mesi TASSO ZERO)</name><merchantName>Bytecno</merchantName><merchant>bytecno</merchant><price>399,00</price><deliveryCost>5,99</deliveryCost><totalCost>404,99</totalCost><availability>1</availability><availabilityDescr>Disponibile</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=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&sid=</url><description>MD788TY Apple Ipad Air da 16GB modello MD788/TY, colore Bianco,Sistema operativo iOS 7 , Display Retina da 9,7 ,processore con Chip A7 con architettura a 64 bit e coprocessore di movimento M7,FaceTime HD , F 0885909773190</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/124519907.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/124519907.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/bytecno.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="113671151"><name>Apple Ipad Air 16GB silver MD788 con WiFi Garanzia Italia!!</name><merchantName>onlinestore</merchantName><merchant>onlinestore</merchant><price>409,00</price><deliveryCost>8,99</deliveryCost><totalCost>417,99</totalCost><availability>-1</availability><availabilityDescr>Vedi sito negozio per disponibilità</availabilityDescr><url>http://clicks.shoppydoo.com/go.aspx?impression=Vzl6eFN4eHZRNFNQTGN2VzI3UTE3Y3c2bXN3T1BLSERqaTM2OXRSNXdoVnpEVkk1aWZKb1BBPT01&offer=a0RBSWFuY0tXK3NlMnE1T1JCKzRhemkrK3JDV1c2VFRKcVFxYnJhNEpJVllJdmpBdU80bGxQSGR6TmtXdzFiKzJVZDFDUzNSM2FHeUs1QnIra3FGRGxFTHpPOW1kaEdpcFpTcytwWm01RzZ2ajdiV09WZC82eXFxN2J2azcvbml6ZC9ObXNiaTdyNDJBZnJOUFB5TVJNcmgybWM3ZE96WGJkdHY4Q0lyVnYxN3k3aHh2dzhMd2JYU3FIb2NxeUoySUhNYklKTFVEa2FlOW5PRmlFQnF1Nzh2dVRRcGZtMlZjL2JJbE5wMlp0TExmdmtOY05HQWVmUk9wS1ZBUVBkdjVqUVlsV1dmdFA1VTNjTHlabWFlZ0Z5ZjFQbFJHZUE3WHdXOWxXVkQ4SGpEeURuSkxYOXZIak9WZTBOeW9RWkpjaVpURHhyTUlVcml6S0Y1NWtoQlViQ3pLbHFFOTkyNWU4VmpWQUtBWXlvPQ2&sid=</url><description>Display:       Display Retina     Display Multi-Touch retroilluminato LED da 9,7 (diagonale) con tecnologia IPS     Risoluzione di 2048x1536 a 264 ppi (pixel per pollice) [...]</description><smallImage>http://img.shoppydoo.com/it/tp_products/20189/113671151.jpg</smallImage><smallerImage>http://img.shoppydoo.com/it/tp_products/20189/65x65/113671151.jpg</smallerImage><merchantImage>http://img.shoppydoo.com/merchants/onlinestore.gif</merchantImage><categoryId>20189</categoryId><categoryName>Tablet</categoryName></product><product id="113779613"><name>tablet apple ipad air 16gb wifi black/gray (MD785FD/A)</name><merchantName>LINA24</merchantName>
Lo script praticamente dovrebbe aprire casualmente un link tra quelli contenuti nel tag <url></url> del file XML prensente in rete