Currency by CLASS?

I have graphics and other text/features on the website that I only want to show when a customer chooses that currency. So far the website changes any currency widgets but is there a way for it to show which currency is active or applying an ACTIVE class to a currency.

For example, is the customer selects USD currency, then the plugin outputs an “ACTIVE-USD” class? Or if they select IND currency, the plugin outputs “ACTIVE-IND” class?

The benefit is I can then set graphics/text/anything to show only when a class is active or hide if not. I want to show flags and I have some text where I wrote prices in html (on a page where I cannot use currency/product widgets). I want to show/hide them depending on which currency is active.

I hope this makes sense? Is something like this possible?