I was checking the code many times and everything was ok and I found the cause. when I use the slider in my website I assigned a z-index:-1; so it can be as a background slider and in this case the controls doesn't work, but it is the only way I can use it as a background slider.
Is there any other way i can use it as a background of my website?
I already used z-Index:0; but it appears in front of all the website content and I can't see the website, just the slider in front, and I try using a higher z-index in all other webparts but slider still remains in the front.
Can you help me with this?
Thanks in advance