different fullscreen slider on iphone

Hi Kriesi Team,

I have two fullscreen slider on my Page and I want to show one for desktop PC and a direrent for Smartphone and Tables.

To disable the fullscreen slider on my desktop I am using this code:
@media only screen and (max-width: 990px) {
#fullscreen_slider_0{
display: none;
}
}
but when i use this code the two slider disappear :(

Do you have an solution to show one slider for desktop PCs and one for Smartphones?
If it is not possible how can i change the slider fotos for Smartphones?