Modify an existing shell script

I have an existing script that: - monitors a website that contains a table referencing PDF documents. This table is updated with new documents regularly throughout the day - as new documents are added, downloads the documents and converts them to text files - arranges them in logical folders and highlights the date of creation What I need: - I need this script modified to work on a different web site, which has a different layout Existing behaviour should be maintained such as: - only download new files (the script will be executed regularly on a schedule, I only want to download each file once) - arrange in folders that correspond to records in the table (i.e. there may be multiple documents per folder) - maintain the existing output file properties (i.e. name and layout/structure)