HTML Modification with Form needed

Dear Bidders We need the modification from 20 html pages. We can provide you with a list of the html parts that needs to be changed. Of course we give you the changed code as well. The problem on our side is: The 20 html pages are in a user panel that starts with a form. So your solutions must be able to submit the different username and password in the starting form - and then changes the next html pages on the fly. Everytime a html phrase is recognized - it changes it by another phrase given from us. We will give you all the phrases needed. Please contact as for more detailed information. We thank you for bidding. We have already tried it with a script called grabnpaste. But we couldn't find a solution here. You will find the script attached here. We have changed the .pl ending into .txt. Maybe you only need to enhance or modify the script. When bidding please state also the programming language you will use.