Edit 259 html files and make 4 changes per file then test

Note : the source pages are from an adult website so dont bid if you are offended as you will need to test each page to check it is working. We will provide FTP login details which will take you to a directory that contains 259 html files. Each of these files has two "Add to Cart" buttons which need to have changes done to 2 elements of a <form> tag and changes done to 2 elements of an <input> tag 3 of these 4 changes are relatively simple text substitutions for example <form method="post" name="Order" will need to be changed to <form method="post" name="Order0" <input value="731" name="whatever_value_here" will need to be changed to <input value="731" name="products_id" <form action="whatever_value_here" will need to be changed to a fixed url that we will supply The fourth change will need a product name substitution taken from a spreadsheet we will provide an example is <input value="S0932" would need to be changed to <input value="731" where you will look up "S0932" in column A in the spreadsheet and change it to whatever is in column B (in this case "731") This can either be done by hand for each page or you can write a script but each page will need to be checked by using a browser to go to that page and then clicking on the "Add to Cart" button. It is important that both buttons are checked for each file after the changes have been made as payment will only be released once all proved to be working