function slideSwitch() {
    var $active = $('#slideshow IMG.active');

    if ( $active.length == 0 ) $active = $('#slideshow IMG:last');

    // use this to pull the images in the order they appear in the markup
    var $next =  $active.next().length ? $active.next()
        : $('#slideshow IMG:first');

    // uncomment the 3 lines below to pull the images in random order
    
    // var $sibs  = $active.siblings();
    // var rndNum = Math.floor(Math.random() * $sibs.length );
    // var $next  = $( $sibs[ rndNum ] );


    $active.addClass('last-active');

    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1000, function() {
            $active.removeClass('active last-active');
        });
}

$(function() {
    setInterval( "slideSwitch()", 2500 );
});


(function ($) {
        $.fn.fadeTransition = function(options) {
          var options = $.extend({pauseTime: 6000, transitionTime: 3000, ignore: null, delayStart: 0, pauseNavigation: false}, options);
          var transitionObject;

          Trans = function(obj) {
            var timer = null;
            var current = 0;
            var els = (options.ignore)?$("> *:not(" + options.ignore + ")", obj):$("> *", obj);
            $(obj).css("position", "relative");
            els.css("display", "none").css("left", "0").css("top", "0").css("position", "absolute");
            
            if (options.delayStart > 0) {
              setTimeout(showFirst, options.delayStart);
            }
            else
              showFirst();

            function showFirst() {
              if (options.ignore) {
                $(options.ignore, obj).fadeOut(options.transitionTime);
                $(els[current]).fadeIn(options.transitionTime);
              }
              else {
                $(els[current]).css("display", "block");
              }
            }

            function transition(next) {
              $(els[current]).fadeOut(options.transitionTime);
              $(els[next]).fadeIn(options.transitionTime);
              current = next;
              cue();
            };

            function cue() {
              if ($("> *", obj).length < 2) return false;
              if (timer) clearTimeout(timer);
              if (!options.pauseNavigation) {
                timer = setTimeout(function() { transition((current + 1) % els.length | 0)} , options.pauseTime);
              }
            };
            
            this.showItem = function(item) {
              if (timer) clearTimeout(timer);
              transition(item);
            };

            cue();
          }

          this.showItem = function(item) {
            transitionObject.showItem(item);
          };

          return this.each(function() {
            transitionObject = new Trans(this);
          });
        }

      })(jQuery);
    
      var page = {
        tr: null,
        init: function() {
          page.tr = $(".area").fadeTransition({pauseTime: 5000, transitionTime: 2000, ignore: "#introslide", delayStart: 2000});
          $("div.navigation").each(function() {
            $(this).children().each( function(idx) {
              if ($(this).is("a"))
                $(this).click(function() { page.tr.showItem(idx); return false; })
            });
          });
        },

        show: function(idx) {
          if (page.tr.timer) clearTimeout(page.tr.timer);
          page.tr.showItem(idx);
        }
      };

      $(document).ready(page.init);