Check if an HTML file is accessed directly or has been redirected

I have two HTML files: one.html and two.html

File *one.html refers to file one.js and file two.html refers file two.js.

Now, file one.js simply redirects to file two.html using windows.location of jQuery.

Is there a way to check within file two.js if file two.html was redirected from file one.js or it (file two.html) was accessed directly?

Answer

document.referrer 

gives you the last page that the user has visited. You can use it to determine where the user came from.