I make a image puzzle game on desktop but it not work on touch screen , any solution, I also give code to resolve it [closed]

When I make a image puzzle game by javascript it work properly on desktop but in touch screen it not work. Any suggestions?
I used event – dragstart, dragover, dragenter, dragleave, drop, dragend. And define some function to it. It is not complete game it is only in developing stage.

please suggest me