Crawl and download data from webpage

task is to write application that crawl/scrap all data from page [login to view URL] there is one search field where you put company ID (KRS) i want to scrap ids from 0000606070 to 0000923690 after searching there is detailed view of company in that view you need to select "Roczne sprawozdanie finansowe" from option field after that the table with company documents will refreash the task is to download all the documents the last column called "Akcje" has "Pokaż szczegóły", after clicking that you will see additional layer with details of document and there is button "Pobierz dokumenty" - to download the document the documents should be stored in folders by company folder should have name by pattern : "0000606070 MULTI-CORP SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ" and files in that folder should have name: (date) (oryginal name) date - the date from document details "Data sporządzenia dokumentu" oryginal name - as it will come from server All folders and documents you will pack to zip archive to send me you will start work with small sample (few companies) and then if everythink will be ok you do all companies there is no captcha but main problem is that server will block your IP after one search (need to change IP)