Just for your information: about detecting touch screens:
www.stucox.com/blog/you-cant-detect-a-touchscreen/

And ?

Hi Denis,

this was just to show that really detecting a touch screen is difficult. No more than that.

Tammo

Yes, but you don't have really to test if user have a touch system or not.

1st : hover is only here for mouse : don't really use it.
2nd : click is same with or without touch or not: click do action on button or link.
3rd: whole input wrapper must do action on the input inside : think nall user have a touchscreen withg big thumb ( ).