$(document).ready(function() {
   if($('#header-slide-show').length > 0) {
      var container = $('#header-slide-show');
      var imgArray = $('#header-slide-show > img');
      var imgCount = imgArray.size();
      var lastImg = 0;
      var nextImg = 1;
      
      function fadeNextWelcome() {
         $(imgArray[lastImg]).fadeOut('slow');
         $(
         imgArray[nextImg]).fadeIn('slow');
         lastImg = nextImg;
         nextImg++;
         if(nextImg >= imgCount){nextImg=0;}
      }
      window.setInterval(fadeNextWelcome, 5000);
   } // if header-slide-show
});