Do I have the right screen to fix my iPhone 4S?

I bought a screen online for my 4s since the screen is cracked, I have changed screens before, but this particular screen has no touch digitizer attached to it, or any if those metal prongs around the framing of the screen as to screw it into the iPhone and keep it snug. It's just the plain screen with the one ribbon coming out the top. Now I was curious, what exactly is this? As it looks completely different from the other screens I've gotten in the past. And, since it obviously doesn't have a digitizer, is it possible for me to take this new screen, attach the digitizer from my iphone that had a broken screen (touch digitizer works fine, just glass is cracked) and then attach it to my 4s thus fixing my phone with the screen that's fixed? Any help greatly appreciated thanks. P. S.yes, this screen is for a 4s phone, just a generic version I assume, I'm not trying to use a 4 screen with a 4s or anything if that nature, just to clear that part up incase it caused concern for any if you.

I think there's a way but I heard it's terribly difficult, and you can damage the digitizer touch screen. I'd recommend just purchasing the complete iPhone 4S screen online, coz I doubt you'll be able to change the touch screen digitizer.