If you add parameters end of URL, you can use these as javascript variables with urlparam()
In this https://sinseiki.github.io/urlparam.js/index.html?a=1&b=abc
you can use variables "a='1'", "b='abc'"
In this https://sinseiki.github.io/urlparam.js/index.html?tabNum=2
you can use tabmenu colored on the second tab with this code.
const lis = document.querySelectorAll('li'); if (typeof tabNum === 'string') { lis[tabNum - 1].classList.add('on'); }