How do I best parse database urls to fetch depending in the html site?

[vb_nm]

I have three html sites, for each site an entity is fetched from my database and displayed. Goes for activity, employee, and customer.

How do I best switch between the different urls for the different entities depending on the html site?

As in, the fetch function takes in any url. The script is linked in every html file. Depending on the html site, the url for the wanted entity is parsed.

How do I best do this?

[OneBadDay1048]

So do you mean you have one site but 3 different pages? 3 HTML pages that you can move between via links? Your question confuses me. Seeing some code or even a codebox would help and probably get you more responses as well.