You are re-using ID values on key elements. You should avoid this and use classes instead when you have multiple elements that should share a handler. I see that you’re doing this with #bks specifically, which is the element jQuery tries to manipulate. This will definitely cause problems with jQuery’s access to those elements.
You could avoid using the id values altogether and reduce your code a bit:
Hi Jonathan, the makers of this slider made it that each slider is called not with its own ID or CLASS. And in order to have the Full Screen Slider you must use ID to set it apart. I forgot to though take away some ID’s and make them class, and you reminded me. Thank you.
I did some changes on the slider, YEA, not does not jerk, and it looks the same in all browsers! GREAT!