Fix buggy sliding carousel.
Adding: "useCSS: false" seems to do the trick.

Also "startSlide" is not used correctly here.
See the explanation below sample #6 on this page: http://bxslider.com/examples/carousel-demystified
Maybe the computation for $imgnumber should just be removed from the code.

Changed "$jcarousel_items" to "$bxslider_items" for better semantics.