Code to enable multiple passwords on Weebly site

I need to be able to have multiple password options on a Weebly website. Weebly by default only has a single password that can be applied to pages within the site. I want some standalone code that enable me to use embed code feature in Weebly editor to create a button to take user to a specified page, but they must enter a password to activate the link. I need to be able to place this code, using Weebly embed, on various places and pages on the site. I dont know the best option to make this work. perhaps there could be a file containing a series of pre-defined password/page URL combinations and this could be iploaded using Weebly CSS/html editor to upload the file, then embed code could use that information. Happy for suggestions and alternatives. I have been told not to use javascript code as this can easily be compromised. What I need is a way to password protect multiple pages within a Weebly website so that I can supply users with the passwords they need to access certain pages.