var rotationId = 0;

function rotationBanners () {
  var liCount = $('#rotationBanners li').length;
  if (liCount > 1) {

    if ((rotationId+1) == liCount) {
      var outNumber = rotationId;
      var inNumber = 0;
      rotationId = 0;
    } else {
      var outNumber = rotationId;
      var inNumber = rotationId+1;
      rotationId++;
    }

    $("ul#rotationBanners li:eq("+outNumber+")").fadeOut("normal", function(){
        $("ul#rotationBanners li:eq("+inNumber+")").fadeIn("normal");
      });
    timerID = setTimeout("rotationBanners()", 7000);
  }
}

$(document).ready(function(){
    timerID = setTimeout("rotationBanners()", 7000);
});