views slideshow jquery interfering with nice menus
I think it's z-index and it's a CSS issue, not a Javascript issue. 

Put the following in your CSS sheet (any one of them that's included in your homepage):

#views_slideshow_singleframe_teaser_section_slideshow-block_1 {
  z-index: 1;
}

ul.nice-menu li {
  z-index: 10;
}