form for updating a html page

[zvitus]

I have a html page that I use to display information about my workplace. There are dates that need to be output and those dates change every week and right now, I have to manually edit the html page. So I need a form so that normal HR people can change the information themselves and save me the time. I'm pretty sure it's gonna require some javascript. My plans are to build it and send it to my corporate office so they can host it on our sharepoint page. I do have the basic form with the layout and everything that I want, I just can't find the best way to tie it all in with my html page. Thanks,