Wait! Read this first!
There is a better, more generic solution described here: How to scroll up by tapping status bar in Cordova/PhoneGap apps on iOS
If you still want to checkout the Upscroller plugin, feel free to read on :-)
I created a tiny little plugin for Framework7 that fixes the problem that users cannot scroll up a large list by simply tapping the top of the screen. To work around this, my plugin checks if the user has scrolled down a bit and then displays a nice looking blue button at the top of the screen which let the user scroll up with a cool looking slide animation.
Check out the demo here.
Grab the plugin on Github if you like.