/*!
 * jQuery Cycle Plugin (core logic only)
 * Examples and documentation at: http://jquery.malsup.com/cycle/
 * Copyright (c) 2007-2009 M. Alsup
 * Version: 2.65 (07-APR-2009)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 * Requires: jQuery v1.2.6 or later
 *
 * Originally based on the work of:
 *  1) Matt Oakes
 *  2) Torsten Baldes (http://medienfreunde.com/lab/innerfade/)
 *  3) Benjamin Sterling (http://www.benjaminsterling.com/experiments/jqShuffle/)
 */
;(function($) {

var ver = '2.65';

// if $.support is not defined (pre jQuery 1.3) add what I need
if ($.support == undefined) {
  $.support = {
    opacity: !($.browser.msie)
  };
}

function log() {
  if (window.console && window.console.log)
    window.console.log('[cycle] ' + Array.prototype.join.call(arguments,' '));
  //$('body').append('<div>'+Array.prototype.join.call(arguments,' ')+'</div>');
};

// the options arg can be...
//   a number  - indicates an immediate transition should occur to the given slide index
//   a string  - 'stop', 'pause', 'resume', or the name of a transition effect (ie, 'fade', 'zoom', etc)
//   an object - properties to control the slideshow
//
// the arg2 arg can be...
//   the name of an fx (only used in conjunction with a numeric value for 'options')
//   the value true (only used in conjunction with a options == 'resume') and indicates
//     that the resume should occur immediately (not wait for next timeout)

$.fn.cycle = function(options, arg2) {
  var o = { s: this.selector, c: this.context };

    // in 1.3+ we can fix mistakes with the ready state
  if (this.length == 0 && options != 'stop') {
        if (!$.isReady && o.s) {
            log('DOM not ready, queuing slideshow')
            $(function() {
                $(o.s,o.c).cycle(options,arg2);
            });
            return this;
        }
    // is your DOM ready?  http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
    log('terminating; zero elements found by selector' + ($.isReady ? '' : ' (DOM not ready)'));
    return this;
  }

    // iterate the matched nodeset
  return this.each(function() {
        options = handleArguments(this, options, arg2);
        if (options === false)
            return;

    // stop existing slideshow for this container (if there is one)
    if (this.cycleTimeout)
            clearTimeout(this.cycleTimeout);
    this.cycleTimeout = this.cyclePause = 0;

    var $cont = $(this);
    var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
    var els = $slides.get();
    if (els.length < 2) {
      log('terminating; too few slides: ' + els.length);
      return;
    }

        var opts = buildOptions($cont, $slides, els, options, o);
        if (opts === false)
            return;

        // if it's an auto slideshow, kick it off
    if (opts.timeout || opts.continuous)
      this.cycleTimeout = setTimeout(function(){go(els,opts,0,!opts.rev)},
        opts.continuous ? 10 : opts.timeout + (opts.delay||0));
  });
};

// process the args that were passed to the plugin fn
function handleArguments(cont, options, arg2) {
  if (cont.cycleStop == undefined)
    cont.cycleStop = 0;
  if (options === undefined || options === null)
    options = {};
  if (options.constructor == String) {
    switch(options) {
    case 'stop':
      cont.cycleStop++; // callbacks look for change
      if (cont.cycleTimeout)
                clearTimeout(cont.cycleTimeout);
      cont.cycleTimeout = 0;
      $(cont).removeData('cycle.opts');
      return false;
    case 'pause':
      cont.cyclePause = 1;
      return false;
    case 'resume':
      cont.cyclePause = 0;
      if (arg2 === true) { // resume now!
        options = $(cont).data('cycle.opts');
        if (!options) {
          log('options not found, can not resume');
          return false;
        }
        if (cont.cycleTimeout) {
          clearTimeout(cont.cycleTimeout);
          cont.cycleTimeout = 0;
        }
        go(options.elements, options, 1, 1);
      }
      return false;
    default:
      options = { fx: options };
    };
  }
  else if (options.constructor == Number) {
    // go to the requested slide
    var num = options;
    options = $(cont).data('cycle.opts');
    if (!options) {
      log('options not found, can not advance slide');
      return false;
    }
    if (num < 0 || num >= options.elements.length) {
      log('invalid slide index: ' + num);
      return false;
    }
    options.nextSlide = num;
    if (cont.cycleTimeout) {
      clearTimeout(cont.cycleTimeout);
      cont.cycleTimeout = 0;
    }
        if (typeof arg2 == 'string')
            options.oneTimeFx = arg2;
    go(options.elements, options, 1, num >= options.currSlide);
    return false;
  }
    return options;
};

function removeFilter(el, opts) {
  if (!$.support.opacity && opts.cleartype && el.style.filter) {
    try { el.style.removeAttribute('filter'); }
    catch(smother) {} // handle old opera versions
  }
};

// one-time initialization
function buildOptions($cont, $slides, els, options, o) {
  // support metadata plugin (v1.0 and v2.0)
  var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});
  if (opts.autostop)
    opts.countdown = opts.autostopCount || els.length;

    var cont = $cont[0];
  $cont.data('cycle.opts', opts);
  opts.$cont = $cont;
  opts.stopCount = cont.cycleStop;
  opts.elements = els;
  opts.before = opts.before ? [opts.before] : [];
  opts.after = opts.after ? [opts.after] : [];
  opts.after.unshift(function(){ opts.busy=0; });

    // push some after callbacks
  if (!$.support.opacity && opts.cleartype)
    opts.after.push(function() { removeFilter(this, opts); });
  if (opts.continuous)
    opts.after.push(function() { go(els,opts,0,!opts.rev); });

    saveOriginalOpts(opts);

  // clearType corrections
  if (!$.support.opacity && opts.cleartype && !opts.cleartypeNoBg)
    clearTypeFix($slides);

    // container requires non-static position so that slides can be position within
  if ($cont.css('position') == 'static')
    $cont.css('position', 'relative');
  if (opts.width)
    $cont.width(opts.width);
  if (opts.height && opts.height != 'auto')
    $cont.height(opts.height);

  if (opts.startingSlide)
        opts.startingSlide = parseInt(opts.startingSlide);

    // if random, mix up the slide array
  if (opts.random) {
    opts.randomMap = [];
    for (var i = 0; i < els.length; i++)
      opts.randomMap.push(i);
    opts.randomMap.sort(function(a,b) {return Math.random() - 0.5;});
    opts.randomIndex = 0;
    opts.startingSlide = opts.randomMap[0];
  }
  else if (opts.startingSlide >= els.length)
    opts.startingSlide = 0; // catch bogus input
  opts.currSlide = opts.startingSlide = opts.startingSlide || 0;
  var first = opts.startingSlide;

    // set position and zIndex on all the slides
  $slides.css({position: 'absolute', top:0, left:0}).hide().each(function(i) {
    var z = first ? i >= first ? els.length - (i-first) : first-i : els.length-i;
    $(this).css('z-index', z)
  });

    // make sure first slide is visible
  $(els[first]).css('opacity',1).show(); // opacity bit needed to handle restart use case
  removeFilter(els[first], opts);

    // stretch slides
  if (opts.fit && opts.width)
    $slides.width(opts.width);
  if (opts.fit && opts.height && opts.height != 'auto')
    $slides.height(opts.height);

    // stretch container
  var reshape = opts.containerResize && !$cont.innerHeight();
  if (reshape) { // do this only if container has no size http://tinyurl.com/da2oa9
    var maxw = 0, maxh = 0;
    for(var i=0; i < els.length; i++) {
      var $e = $(els[i]), e = $e[0], w = $e.outerWidth(), h = $e.outerHeight();
            if (!w) w = e.offsetWidth;
            if (!h) h = e.offsetHeight;
      maxw = w > maxw ? w : maxw;
      maxh = h > maxh ? h : maxh;
    }
        if (maxw > 0 && maxh > 0)
        $cont.css({width:maxw+'px',height:maxh+'px'});
  }

  if (opts.pause)
    $cont.hover(function(){this.cyclePause++;},function(){this.cyclePause--;});

    if (supportMultiTransitions(opts) === false)
    return false;

  // run transition init fn
  if (!opts.multiFx) {
    var init = $.fn.cycle.transitions[opts.fx];
    if ($.isFunction(init))
      init($cont, $slides, opts);
    else if (opts.fx != 'custom' && !opts.multiFx) {
      log('unknown transition: ' + opts.fx,'; slideshow terminating');
      return false;
    }
  }

  // apparently a lot of people use image slideshows without height/width attributes on the images.
  // Cycle 2.50+ requires the sizing info for every slide; this block tries to deal with that.
  var requeue = false;
  options.requeueAttempts = options.requeueAttempts || 0;
  $slides.each(function() {
        // try to get height/width of each slide
    var $el = $(this);
      this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
    this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();

    if ( $el.is('img') ) {
      // sigh..  sniffing, hacking, shrugging...
      var loadingIE    = ($.browser.msie  && this.cycleW == 28 && this.cycleH == 30 && !this.complete);
      var loadingOp    = ($.browser.opera && this.cycleW == 42 && this.cycleH == 19 && !this.complete);
      var loadingOther = (this.cycleH == 0 && this.cycleW == 0 && !this.complete);

      // don't requeue for images that are still loading but have a valid size
      if (loadingIE || loadingOp || loadingOther) {
        if (o.s && opts.requeueOnImageNotLoaded && ++options.requeueAttempts < 100) { // track retry count so we don't loop forever
          log(options.requeueAttempts,' - img slide not loaded, requeuing slideshow: ', this.src, this.cycleW, this.cycleH);
          setTimeout(function() {$(o.s,o.c).cycle(options)}, opts.requeueTimeout);
          requeue = true;
          return false; // break each loop
        }
        else {
          log('could not determine size of image: '+this.src, this.cycleW, this.cycleH);
        }
      }
    }
    return true;
  });

  if (requeue)
    return false;

  opts.cssBefore = opts.cssBefore || {};
  opts.animIn = opts.animIn || {};
  opts.animOut = opts.animOut || {};

  $slides.not(':eq('+first+')').css(opts.cssBefore);
  if (opts.cssFirst)
    $($slides[first]).css(opts.cssFirst);

  if (opts.timeout) {
    opts.timeout = parseInt(opts.timeout);
    // ensure that timeout and speed settings are sane
    if (opts.speed.constructor == String)
      opts.speed = $.fx.speeds[opts.speed] || parseInt(opts.speed);
    if (!opts.sync)
      opts.speed = opts.speed / 2;
    while((opts.timeout - opts.speed) < 250) // sanitize timeout
      opts.timeout += opts.speed;
  }
  if (opts.easing)
    opts.easeIn = opts.easeOut = opts.easing;
  if (!opts.speedIn)
    opts.speedIn = opts.speed;
  if (!opts.speedOut)
    opts.speedOut = opts.speed;

  opts.slideCount = els.length;
  opts.currSlide = opts.lastSlide = first;
  if (opts.random) {
    opts.nextSlide = opts.currSlide;
    if (++opts.randomIndex == els.length)
      opts.randomIndex = 0;
    opts.nextSlide = opts.randomMap[opts.randomIndex];
  }
  else
    opts.nextSlide = opts.startingSlide >= (els.length-1) ? 0 : opts.startingSlide+1;

  // fire artificial events
  var e0 = $slides[first];
  if (opts.before.length)
    opts.before[0].apply(e0, [e0, e0, opts, true]);
  if (opts.after.length > 1)
    opts.after[1].apply(e0, [e0, e0, opts, true]);

  if (opts.next)
    $(opts.next).click(function(){return advance(opts,opts.rev?-1:1)});
  if (opts.prev)
    $(opts.prev).click(function(){return advance(opts,opts.rev?1:-1)});
  if (opts.pager)
    buildPager(els,opts);

    exposeAddSlide(opts, els);

    return opts;
};

// save off original opts so we can restore after clearing state
function saveOriginalOpts(opts) {
    opts.original = { before: [], after: [] };
    opts.original.cssBefore = $.extend({}, opts.cssBefore);
    opts.original.cssAfter  = $.extend({}, opts.cssAfter);
    opts.original.animIn    = $.extend({}, opts.animIn);
    opts.original.animOut   = $.extend({}, opts.animOut);
  $.each(opts.before, function() { opts.original.before.push(this); });
  $.each(opts.after,  function() { opts.original.after.push(this); });
};

function supportMultiTransitions(opts) {
    var txs = $.fn.cycle.transitions;
  // look for multiple effects
  if (opts.fx.indexOf(',') > 0) {
    opts.multiFx = true;
    opts.fxs = opts.fx.replace(/\s*/g,'').split(',');
    // discard any bogus effect names
    for (var i=0; i < opts.fxs.length; i++) {
      var fx = opts.fxs[i];
      var tx = txs[fx];
      if (!tx || !txs.hasOwnProperty(fx) || !$.isFunction(tx)) {
        log('discarding unknown transition: ',fx);
        opts.fxs.splice(i,1);
        i--;
      }
    }
    // if we have an empty list then we threw everything away!
    if (!opts.fxs.length) {
      log('No valid transitions named; slideshow terminating.');
      return false;
    }
  }
  else if (opts.fx == 'all') {  // auto-gen the list of transitions
    opts.multiFx = true;
    opts.fxs = [];
    for (p in txs) {
      var tx = txs[p];
      if (txs.hasOwnProperty(p) && $.isFunction(tx))
        opts.fxs.push(p);
    }
  }
  if (opts.multiFx && opts.randomizeEffects) {
    // munge the fxs array to make effect selection random
    var r1 = Math.floor(Math.random() * 20) + 30;
    for (var i = 0; i < r1; i++) {
      var r2 = Math.floor(Math.random() * opts.fxs.length);
      opts.fxs.push(opts.fxs.splice(r2,1)[0]);
    }
    log('randomized fx sequence: ',opts.fxs);
  }
  return true;
};

// provide a mechanism for adding slides after the slideshow has started
function exposeAddSlide(opts, els) {
  opts.addSlide = function(newSlide, prepend) {
    var $s = $(newSlide), s = $s[0];
    if (!opts.autostopCount)
      opts.countdown++;
    els[prepend?'unshift':'push'](s);
    if (opts.els)
      opts.els[prepend?'unshift':'push'](s); // shuffle needs this
    opts.slideCount = els.length;

    $s.css('position','absolute');
    $s[prepend?'prependTo':'appendTo'](opts.$cont);

    if (prepend) {
      opts.currSlide++;
      opts.nextSlide++;
    }

    if (!$.support.opacity && opts.cleartype && !opts.cleartypeNoBg)
      clearTypeFix($s);

    if (opts.fit && opts.width)
      $s.width(opts.width);
    if (opts.fit && opts.height && opts.height != 'auto')
      $slides.height(opts.height);
    s.cycleH = (opts.fit && opts.height) ? opts.height : $s.height();
    s.cycleW = (opts.fit && opts.width) ? opts.width : $s.width();

    $s.css(opts.cssBefore);

    if (opts.pager)
      $.fn.cycle.createPagerAnchor(els.length-1, s, $(opts.pager), els, opts);

    if ($.isFunction(opts.onAddSlide))
      opts.onAddSlide($s);
    else
      $s.hide(); // default behavior
  };
}

// reset internal state; we do this on every pass in order to support multiple effects
$.fn.cycle.resetState = function(opts, fx) {
    fx = fx || opts.fx;
  opts.before = []; opts.after = [];
  opts.cssBefore = $.extend({}, opts.original.cssBefore);
  opts.cssAfter  = $.extend({}, opts.original.cssAfter);
  opts.animIn    = $.extend({}, opts.original.animIn);
  opts.animOut   = $.extend({}, opts.original.animOut);
  opts.fxFn = null;
  $.each(opts.original.before, function() { opts.before.push(this); });
  $.each(opts.original.after,  function() { opts.after.push(this); });

  // re-init
  var init = $.fn.cycle.transitions[fx];
  if ($.isFunction(init))
    init(opts.$cont, $(opts.elements), opts);
};

// this is the main engine fn, it handles the timeouts, callbacks and slide index mgmt
function go(els, opts, manual, fwd) {
    // opts.busy is true if we're in the middle of an animation
  if (manual && opts.busy && opts.manualTrump) {
        // let manual transitions requests trump active ones
    $(els).stop(true,true);
    opts.busy = false;
  }
    // don't begin another timeout-based transition if there is one active
  if (opts.busy)
        return;

  var p = opts.$cont[0], curr = els[opts.currSlide], next = els[opts.nextSlide];

    // stop cycling if we have an outstanding stop request
  if (p.cycleStop != opts.stopCount || p.cycleTimeout === 0 && !manual)
    return;

    // check to see if we should stop cycling based on autostop options
  if (!manual && !p.cyclePause &&
    ((opts.autostop && (--opts.countdown <= 0)) ||
    (opts.nowrap && !opts.random && opts.nextSlide < opts.currSlide))) {
    if (opts.end)
      opts.end(opts);
    return;
  }

    // if slideshow is paused, only transition on a manual trigger
  if (manual || !p.cyclePause) {
        var fx = opts.fx;
    // keep trying to get the slide size if we don't have it yet
    curr.cycleH = curr.cycleH || $(curr).height();
    curr.cycleW = curr.cycleW || $(curr).width();
    next.cycleH = next.cycleH || $(next).height();
    next.cycleW = next.cycleW || $(next).width();

    // support multiple transition types
    if (opts.multiFx) {
      if (opts.lastFx == undefined || ++opts.lastFx >= opts.fxs.length)
        opts.lastFx = 0;
      fx = opts.fxs[opts.lastFx];
      opts.currFx = fx;
    }

        // one-time fx overrides apply to:  $('div').cycle(3,'zoom');
        if (opts.oneTimeFx) {
            fx = opts.oneTimeFx;
            opts.oneTimeFx = null;
        }

        $.fn.cycle.resetState(opts, fx);

        // run the before callbacks
    if (opts.before.length)
      $.each(opts.before, function(i,o) {
        if (p.cycleStop != opts.stopCount) return;
        o.apply(next, [curr, next, opts, fwd]);
      });

        // stage the after callacks
    var after = function() {
      $.each(opts.after, function(i,o) {
        if (p.cycleStop != opts.stopCount) return;
        o.apply(next, [curr, next, opts, fwd]);
      });
    };

    if (opts.nextSlide != opts.currSlide) {
            // get ready to perform the transition
      opts.busy = 1;
      if (opts.fxFn) // fx function provided?
        opts.fxFn(curr, next, opts, after, fwd);
      else if ($.isFunction($.fn.cycle[opts.fx])) // fx plugin ?
        $.fn.cycle[opts.fx](curr, next, opts, after);
      else
        $.fn.cycle.custom(curr, next, opts, after, manual && opts.fastOnEvent);
    }

        // calculate the next slide
    opts.lastSlide = opts.currSlide;
    if (opts.random) {
      opts.currSlide = opts.nextSlide;
      if (++opts.randomIndex == els.length)
        opts.randomIndex = 0;
      opts.nextSlide = opts.randomMap[opts.randomIndex];
    }
    else { // sequence
      var roll = (opts.nextSlide + 1) == els.length;
      opts.nextSlide = roll ? 0 : opts.nextSlide+1;
      opts.currSlide = roll ? els.length-1 : opts.nextSlide-1;
    }

    if (opts.pager)
      $.fn.cycle.updateActivePagerLink(opts.pager, opts.currSlide);
  }

    // stage the next transtion
    var ms = 0;
  if (opts.timeout && !opts.continuous)
        ms = getTimeout(curr, next, opts, fwd);
    else if (opts.continuous && p.cyclePause) // continuous shows work off an after callback, not this timer logic
        ms = 10;
    if (ms > 0)
        p.cycleTimeout = setTimeout(function(){ go(els, opts, 0, !opts.rev) }, ms);
};

// invoked after transition
$.fn.cycle.updateActivePagerLink = function(pager, currSlide) {
  $(pager).find('a').removeClass('activeSlide').filter('a:eq('+currSlide+')').addClass('activeSlide');
};

// calculate timeout value for current transition
function getTimeout(curr, next, opts, fwd) {
  if (opts.timeoutFn) {
        // call user provided calc fn
    var t = opts.timeoutFn(curr,next,opts,fwd);
    if (t !== false)
      return t;
  }
  return opts.timeout;
};

// expose next/prev function, caller must pass in state
$.fn.cycle.next = function(opts) { advance(opts, opts.rev?-1:1); };
$.fn.cycle.prev = function(opts) { advance(opts, opts.rev?1:-1);};

// advance slide forward or back
function advance(opts, val) {
    var els = opts.elements;
  var p = opts.$cont[0], timeout = p.cycleTimeout;
  if (timeout) {
    clearTimeout(timeout);
    p.cycleTimeout = 0;
  }
  if (opts.random && val < 0) {
    // move back to the previously display slide
    opts.randomIndex--;
    if (--opts.randomIndex == -2)
      opts.randomIndex = els.length-2;
    else if (opts.randomIndex == -1)
      opts.randomIndex = els.length-1;
    opts.nextSlide = opts.randomMap[opts.randomIndex];
  }
  else if (opts.random) {
    if (++opts.randomIndex == els.length)
      opts.randomIndex = 0;
    opts.nextSlide = opts.randomMap[opts.randomIndex];
  }
  else {
    opts.nextSlide = opts.currSlide + val;
    if (opts.nextSlide < 0) {
      if (opts.nowrap) return false;
      opts.nextSlide = els.length - 1;
    }
    else if (opts.nextSlide >= els.length) {
      if (opts.nowrap) return false;
      opts.nextSlide = 0;
    }
  }

  if ($.isFunction(opts.prevNextClick))
    opts.prevNextClick(val > 0, opts.nextSlide, els[opts.nextSlide]);
  go(els, opts, 1, val>=0);
  return false;
};

function buildPager(els, opts) {
  var $p = $(opts.pager);
  $.each(els, function(i,o) {
    $.fn.cycle.createPagerAnchor(i,o,$p,els,opts);
  });
   $.fn.cycle.updateActivePagerLink(opts.pager, opts.startingSlide);
};

$.fn.cycle.createPagerAnchor = function(i, el, $p, els, opts) {
  var a = ($.isFunction(opts.pagerAnchorBuilder))
    ? opts.pagerAnchorBuilder(i,el)
    : '<a href="#">'+(i+1)+'</a>';
  if (!a)
    return;
  var $a = $(a);
  // don't reparent if anchor is in the dom
  if ($a.parents('body').length == 0) {
    var arr = [];
    if ($p.length > 1) {
      $p.each(function() {
        var $clone = $a.clone(true);
        $(this).append($clone);
        arr.push($clone);
      });
      $a = $(arr);
    }
    else {
      $a.appendTo($p);
    }
  }

  $a.bind(opts.pagerEvent, function() {
    opts.nextSlide = i;
    var p = opts.$cont[0], timeout = p.cycleTimeout;
    if (timeout) {
      clearTimeout(timeout);
      p.cycleTimeout = 0;
    }
    if ($.isFunction(opts.pagerClick))
      opts.pagerClick(opts.nextSlide, els[opts.nextSlide]);
    go(els,opts,1,opts.currSlide < i); // trigger the trans
    return false;
  });
  if (opts.pauseOnPagerHover)
    $a.hover(function() { opts.$cont[0].cyclePause++; }, function() { opts.$cont[0].cyclePause--; } );
};

// helper fn to calculate the number of slides between the current and the next
$.fn.cycle.hopsFromLast = function(opts, fwd) {
  var hops, l = opts.lastSlide, c = opts.currSlide;
  if (fwd)
    hops = c > l ? c - l : opts.slideCount - l;
  else
    hops = c < l ? l - c : l + opts.slideCount - c;
  return hops;
};

// fix clearType problems in ie6 by setting an explicit bg color
// (otherwise text slides look horrible during a fade transition)
function clearTypeFix($slides) {
  function hex(s) {
    s = parseInt(s).toString(16);
    return s.length < 2 ? '0'+s : s;
  };
  function getBg(e) {
    for ( ; e && e.nodeName.toLowerCase() != 'html'; e = e.parentNode) {
      var v = $.css(e,'background-color');
      if (v.indexOf('rgb') >= 0 ) {
        var rgb = v.match(/\d+/g);
        return '#'+ hex(rgb[0]) + hex(rgb[1]) + hex(rgb[2]);
      }
      if (v && v != 'transparent')
        return v;
    }
    return '#ffffff';
  };
  $slides.each(function() { $(this).css('background-color', getBg(this)); });
};

// reset common props before the next transition
$.fn.cycle.commonReset = function(curr,next,opts,w,h,rev) {
  $(opts.elements).not(curr).hide();
  opts.cssBefore.opacity = 1;
  opts.cssBefore.display = 'block';
  if (w !== false && next.cycleW > 0)
    opts.cssBefore.width = next.cycleW;
  if (h !== false && next.cycleH > 0)
    opts.cssBefore.height = next.cycleH;
  opts.cssAfter = opts.cssAfter || {};
  opts.cssAfter.display = 'none';
  $(curr).css('zIndex',opts.slideCount + (rev === true ? 1 : 0));
  $(next).css('zIndex',opts.slideCount + (rev === true ? 0 : 1));
};

// the actual fn for effecting a transition
$.fn.cycle.custom = function(curr, next, opts, cb, speedOverride) {
  var $l = $(curr), $n = $(next);
  var speedIn = opts.speedIn, speedOut = opts.speedOut, easeIn = opts.easeIn, easeOut = opts.easeOut;
  $n.css(opts.cssBefore);
  if (speedOverride) {
    if (typeof speedOverride == 'number')
      speedIn = speedOut = speedOverride;
    else
      speedIn = speedOut = 1;
    easeIn = easeOut = null;
  }
  var fn = function() {$n.animate(opts.animIn, speedIn, easeIn, cb)};
  $l.animate(opts.animOut, speedOut, easeOut, function() {
    if (opts.cssAfter) $l.css(opts.cssAfter);
    if (!opts.sync) fn();
  });
  if (opts.sync) fn();
};

// transition definitions - only fade is defined here, transition pack defines the rest
$.fn.cycle.transitions = {
  fade: function($cont, $slides, opts) {
    $slides.not(':eq('+opts.currSlide+')').css('opacity',0);
    opts.before.push(function(curr,next,opts) {
      $.fn.cycle.commonReset(curr,next,opts);
      opts.cssBefore.opacity = 0;
    });
    opts.animIn     = { opacity: 1 };
    opts.animOut   = { opacity: 0 };
    opts.cssBefore = { top: 0, left: 0 };
  }
};

$.fn.cycle.ver = function() { return ver; };

// override these globally if you like (they are all optional)
$.fn.cycle.defaults = {
  fx:        'fade', // name of transition effect (or comma separated names, ex: fade,scrollUp,shuffle)
  timeout:     4000,  // milliseconds between slide transitions (0 to disable auto advance)
  timeoutFn:     null,  // callback for determining per-slide timeout value:  function(currSlideElement, nextSlideElement, options, forwardFlag)
  continuous:     0,    // true to start next transition immediately after current one completes
  speed:       1000,  // speed of the transition (any valid fx speed value)
  speedIn:     null,  // speed of the 'in' transition
  speedOut:     null,  // speed of the 'out' transition
  next:       null,  // selector for element to use as click trigger for next slide
  prev:       null,  // selector for element to use as click trigger for previous slide
  prevNextClick: null,  // callback fn for prev/next clicks:  function(isNext, zeroBasedSlideIndex, slideElement)
  pager:       null,  // selector for element to use as pager container
  pagerClick:     null,  // callback fn for pager clicks:  function(zeroBasedSlideIndex, slideElement)
  pagerEvent:    'click', // name of event which drives the pager navigation
  pagerAnchorBuilder: null, // callback fn for building anchor links:  function(index, DOMelement)
  before:       null,  // transition callback (scope set to element to be shown):     function(currSlideElement, nextSlideElement, options, forwardFlag)
  after:       null,  // transition callback (scope set to element that was shown):  function(currSlideElement, nextSlideElement, options, forwardFlag)
  end:       null,  // callback invoked when the slideshow terminates (use with autostop or nowrap options): function(options)
  easing:       null,  // easing method for both in and out transitions
  easeIn:       null,  // easing for "in" transition
  easeOut:     null,  // easing for "out" transition
  shuffle:     null,  // coords for shuffle animation, ex: { top:15, left: 200 }
  animIn:       null,  // properties that define how the slide animates in
  animOut:     null,  // properties that define how the slide animates out
  cssBefore:     null,  // properties that define the initial state of the slide before transitioning in
  cssAfter:     null,  // properties that defined the state of the slide after transitioning out
  fxFn:       null,  // function used to control the transition: function(currSlideElement, nextSlideElement, options, afterCalback, forwardFlag)
  height:      'auto', // container height
  startingSlide: 0,    // zero-based index of the first slide to be displayed
  sync:       1,    // true if in/out transitions should occur simultaneously
  random:       0,    // true for random, false for sequence (not applicable to shuffle fx)
  fit:       0,    // force slides to fit container
  containerResize: 1,    // resize container to fit largest slide
  pause:       0,    // true to enable "pause on hover"
  pauseOnPagerHover: 0, // true to pause when hovering over pager link
  autostop:     0,    // true to end slideshow after X transitions (where X == slide count)
  autostopCount: 0,    // number of transitions (optionally used with autostop to define X)
  delay:       0,    // additional delay (in ms) for first transition (hint: can be negative)
  slideExpr:     null,  // expression for selecting slides (if something other than all children is required)
  cleartype:     !$.support.opacity,  // true if clearType corrections should be applied (for IE)
  nowrap:       0,    // true to prevent slideshow from wrapping
  fastOnEvent:   0,    // force fast transitions when triggered manually (via pager or prev/next); value == time in ms
  randomizeEffects: 1,  // valid when multiple effects are used; true to make the effect sequence random
  rev:           0,     // causes animations to transition in reverse
  manualTrump:   true,  // causes manual transition to stop an active transition instead of being ignored
  requeueOnImageNotLoaded: true, // requeue the slideshow if any image slides are not yet loaded
  requeueTimeout: 250   // ms delay for requeue
};

})(jQuery);