Hi, I am new in this forum, and I have this question. Is there a way to update a page upon opening the index page, doing so with HTML code (or other way)?....Thank you guys!!!

you need server side scripting for that... try php, asp, jsp ...

yep, most pages are created dynamically these days.

HTML wont do much, its only for markup of the page, as already mentioned you need some type of server side scripting.