Basic Script To Upload Files

I have a very basic script that needs to be done. What it will need to do is follows... First, the user will need to specify a folder. This folder will contain several HTML files. The script will then need to go to a webpage that the user has already went to in their browser. This webpage contains 20 boxes and a "browse" button to select a file to upload. The script needs to upload the first 20 files. Once completed, it will be taken to a new page where the script will need to click on "upload more files." Then, it will need to continue uploading the next 20 files in the folder until all of the files are uploaded. Once selected, I will send you the two HTML files so you will be able to do the project. Also, I will create a video showing specifically what actions need to be done. I majored in Computer Science so I know that for an experienced scriptor this shouldn't take much time. I'm just too lazy to program it myself right now. Payment will be made immediately when I have successfully run the script on my computer and I am satisfied with the results. I appreciate your help and look forward to working with you!