How to Upload files easily to a server using Javascript (for Dummies)
I am absolutely new to programming. I have chosen Django to start, and I am learning through tutorials and pages like this. 
What I am trying to do is this:
I have a .txt file in my root folder, and when I run a particular web page, I take information from that file and display some stuff. The problem is that I need that the users can upload a .txt from their computers, and that this file replaces the file in my root folder. So, that it is called for example data.txt and stored, and that the page refreshes (like F5, for now) so that the information shown is taken from that new file.
Can anybody tell me how to do this, explained step by step 'for Dummies'? If possible, I would like to do it just in JavaScript (not Python). I don't need multiple uploads, and it is not necessary that the upload involves AJAX or anything like that, despite I know that it is nicer.
Thank you very much!
How to Upload files easily to a server using Javascript (for Dummies)
===

I am absolutely new to programming. I have chosen Django to start, and I am learning through tutorials and pages like this. 
What I am trying to do is this:
I have a .txt file in my root folder, and when I run a particular web page, I take information from that file and display some stuff. The problem is that I need that the users can upload a .txt from their computers, and that this file replaces the file in my root folder. So, that it is called for example data.txt and stored, and that the page refreshes (like F5, for now) so that the information shown is taken from that new file.
Can anybody tell me how to do this, explained step by step 'for Dummies'? If possible, I would like to do it just in JavaScript (not Python). I don't need multiple uploads, and it is not necessary that the upload involves AJAX or anything like that, despite I know that it is nicer.
Thank you very much!