/*
 * jQuery Cycle Plugin for light-weight slideshows
 * Examples and documentation at: http://malsup.com/jquery/cycle/
 * Copyright (c) 2007 M. Alsup
 * Version: 2.01 (10/25/2007)
 * 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 v1.1.3.1 or later
 *
 * Based on the work of:
 * 1) Matt Oakes (http://portfolio.gizone.co.uk/applications/slideshow/)
 * 2) Torsten Baldes (http://medienfreunde.com/lab/innerfade/)
 * 3) Benjamin Sterling (http://www.benjaminsterling.com/experiments/jqShuffle/)
 */
(function($) {

var ver = '2.01';

$.fn.cycle = function(options) {
 return this.each(function() {
 if (options && options.constructor == String) {
 switch(options) {
 case 'stop':
 if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
 this.cycleTimeout = 0;
 return;
 case 'pause':
 this.cyclePause = 1;
 return;
 case 'resume':
 this.cyclePause = 0;
 return;
 default:
 options = { fx: options };
 };
 }
 var $cont = $(this), $slides = $cont.children(), els = $slides.get();
 if (els.length < 2) return; // don't bother

 var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.meta ? $cont.data() : {});
 if (opts.autostop) 
 opts.countdown = opts.autostopCount || els.length;
 
 opts.before = opts.before ? [opts.before] : [];
 opts.after = opts.after ? [opts.after] : [];
 opts.after.unshift(function(){ opts.busy=0; });
 var cls = this.className;
 var w = parseInt((cls.match(/w:(\d+)/)||[])[1]) || opts.width;
 var h = parseInt((cls.match(/h:(\d+)/)||[])[1]) || opts.height;
 opts.timeout = parseInt((cls.match(/t:(\d+)/)||[])[1]) || opts.timeout;

 if ($cont.css('position') == 'static') 
 $cont.css('position', 'relative');
 if (w) 
 $cont.width(w);
 if (h && h != 'auto') 
 $cont.height(h);

 $slides.each(function(i){ $(this).css('z-index', els.length-i) }).css('position','absolute').hide();
 $(els[0]).show();
 if (opts.fit && w) 
 $slides.width(w);
 if (opts.fit && h && h != 'auto') 
 $slides.height(h);
 if (opts.pause) 
 $cont.hover(function(){this.cyclePause=1;}, function(){this.cyclePause=0;});
 var init = $.fn.cycle.transitions[opts.fx];
 if ($.isFunction(init))
 init($cont, $slides, opts);

 $slides.each(function() {
 var $el = $(this);
 this.cycleH = (opts.fit && h) ? h : $el.height();
 this.cycleW = (opts.fit && w) ? w : $el.width();
 });

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

 $slides.not(':eq(0)').css(opts.cssBefore);
 if (opts.cssFirst)
 $($slides[0]).css(opts.cssFirst);

 if (opts.timeout) {
 if (opts.speed.constructor == String)
 opts.speed = {slow: 600, fast: 200}[opts.speed] || 400;
 if (!opts.sync)
 opts.speed = opts.speed / 2;
 while((opts.timeout - opts.speed) < 250)
 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.nextSlide = opts.random ? (Math.floor(Math.random() * (els.length-1)))+1 : 1;
 opts.currSlide = 0;
 		opts.slideCount = els.length;

 var e0 = $slides[0];
 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.click && !opts.next)
 opts.next = opts.click;
 if (opts.next)
 $(opts.next).bind('click', function(){return advance(els,opts,opts.rev?-1:1)});
 if (opts.prev)
 $(opts.prev).bind('click', function(){return advance(els,opts,opts.rev?1:-1)});
 if (opts.pager)
 buildPager(els,opts);
 if (opts.timeout)
 this.cycleTimeout = setTimeout(function(){go(els,opts,0,!opts.rev)}, opts.timeout + (opts.delay||0));
 });
};

function go(els, opts, manual, fwd) {
 if (opts.busy) return;

 var p = els[0].parentNode, curr = els[opts.currSlide], next = els[opts.nextSlide];
 if (p.cycleTimeout === 0 && !manual) 
 return;

 if (!manual && !p.cyclePause && opts.autostop && (--opts.countdown <= 0)) 
 return;

 if (manual || !p.cyclePause) {
 if (opts.before.length)
 $.each(opts.before, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
 var after = function() {
 $.each(opts.after, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
 };

 if (opts.nextSlide != opts.currSlide) {
 opts.busy = 1;
 if (opts.fxFn)
 opts.fxFn(curr, next, opts, after);
 else if ($.isFunction($.fn.cycle[opts.fx]))
 $.fn.cycle[opts.fx](curr, next, opts, after);
 else
 $.fn.cycle.custom(curr, next, opts, after);
 }
 if (opts.random) {
 opts.currSlide = opts.nextSlide;
 while (opts.nextSlide == opts.currSlide)
 opts.nextSlide = Math.floor(Math.random() * els.length);
 }
 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)
 $(opts.pager).find('a').removeClass('activeSlide').filter('a:eq('+opts.currSlide+')').addClass('activeSlide');
 }
 if (opts.timeout)
 p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, opts.timeout);
};

function advance(els, opts, val) {
 var p = els[0].parentNode, timeout = p.cycleTimeout;
 if (timeout) {
 clearTimeout(timeout);
 p.cycleTimeout = 0;
 }
 opts.nextSlide = opts.currSlide + val;
 if (opts.nextSlide < 0)
 opts.nextSlide = els.length - 1;
 else if (opts.nextSlide >= els.length)
 opts.nextSlide = 0;
 if (opts.prevNextClick && typeof opts.prevNextClick == 'function')
 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) {
 var $a = (typeof opts.pagerAnchorBuilder == 'function')
 ? $(opts.pagerAnchorBuilder(i,o))
 : $('<a href="#">'+(i+1)+'</a>');
 if ($a.parents('body').length == 0)
 $a.appendTo($p);
 $a.bind('click',function() {
 opts.nextSlide = i;
 var p = els[0].parentNode, timeout = p.cycleTimeout;
 if (timeout) {
 clearTimeout(timeout);
 p.cycleTimeout = 0;
 } 
 if (typeof opts.pagerClick == 'function')
 opts.pagerClick(opts.nextSlide, els[opts.nextSlide]);
 go(els,opts,1,!opts.rev);
 return false;
 });
 });
 $p.find('a').filter('a:eq(0)').addClass('activeSlide');
};

$.fn.cycle.custom = function(curr, next, opts, cb) {
 var $l = $(curr), $n = $(next);
 $n.css(opts.cssBefore);
 var fn = function() {$n.animate(opts.animIn, opts.speedIn, opts.easeIn, cb)};
 $l.animate(opts.animOut, opts.speedOut, opts.easeOut, function() {
 if (opts.cssAfter) $l.css(opts.cssAfter);
 if (!opts.sync) fn();
 });
 if (opts.sync) fn();
};

$.fn.cycle.transitions = {
 fade: function($cont, $slides, opts) {
 $slides.not(':eq(0)').css('opacity',0);
 opts.before.push(function() { $(this).show() });
 opts.animIn = { opacity: 1 };
 opts.animOut = { opacity: 0 };
 opts.cssAfter = { display: 'none' };
 }
};

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

// override these globally if you like (they are all optional)
$.fn.cycle.defaults = {
 fx: 'fade', // one of: fade, shuffle, zoom, slideX, slideY, scrollUp/Down/Left/Right
 timeout: 4000, // milliseconds between slide transitions (0 to disable auto advance)
 speed: 400, // speed of the transition (any valid fx speed value)
 speedIn: null, // speed of the 'in' transition
 speedOut: null, // speed of the 'out' transition
 click: null, // @deprecated; please use the 'next' option
 next: null, // id of element to use as click trigger for next slide
 prev: null, // id of element to use as click trigger for previous slide
 prevNextClick: null, // callback fn for prev/next clicks: function(isNext, zeroBasedSlideIndex, slideElement)
 pager: null, // id of element to use as pager container
 pagerClick: null, // callback fn for pager clicks: function(zeroBasedSlideIndex, slideElement)
 pagerAnchorBuilder: null, // callback fn for building anchor links
 before: null, // transition callback (scope set to element to be shown)
 after: null, // transition callback (scope set to element that was shown)
 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
 height: 'auto', // container height
 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
 pause: 0, // true to enable "pause on hover"
 autostop: 0, // true to end slideshow after X transitions (where X == slide count)
 delay: 0 // additional delay (in ms) for first transition (hint: can be negative)
};

})(jQuery);

jQuery.fn.cycle.transitions.scrollUp = function($cont, $slides, opts) {
 $cont.css('overflow','hidden');
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore.top = next.offsetHeight;
 opts.animOut.top = 0-curr.offsetHeight;
 });
 opts.cssFirst = { top: 0 };
 opts.animIn = { top: 0 };
 opts.cssAfter = { display: 'none' };
};
jQuery.fn.cycle.transitions.scrollDown = function($cont, $slides, opts) {
 $cont.css('overflow','hidden');
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore.top = 0-next.offsetHeight;
 opts.animOut.top = curr.offsetHeight;
 });
 opts.cssFirst = { top: 0 };
 opts.animIn = { top: 0 };
 opts.cssAfter = { display: 'none' };
};
jQuery.fn.cycle.transitions.scrollLeft = function($cont, $slides, opts) {
 $cont.css('overflow','hidden');
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore.left = next.offsetWidth;
 opts.animOut.left = 0-curr.offsetWidth;
 });
 opts.cssFirst = { left: 0 };
 opts.animIn = { left: 0 };
};
jQuery.fn.cycle.transitions.scrollRight = function($cont, $slides, opts) {
 $cont.css('overflow','hidden');
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore.left = 0-next.offsetWidth;
 opts.animOut.left = curr.offsetWidth;
 });
 opts.cssFirst = { left: 0 };
 opts.animIn = { left: 0 };
};
jQuery.fn.cycle.transitions.scrollHorz = function($cont, $slides, opts) {
 $cont.css('overflow','hidden').width();
 opts.before.push(function(curr, next, opts, fwd) {
 jQuery(this).show();
 var currW = curr.offsetWidth, nextW = next.offsetWidth;
 opts.cssBefore = fwd ? { left: nextW } : { left: -nextW };
 opts.animIn.left = 0;
 opts.animOut.left = fwd ? -currW : currW;
 $slides.not(curr).css(opts.cssBefore);
 });
 opts.cssFirst = { left: 0 };
 opts.cssAfter = { display: 'none' }
};
jQuery.fn.cycle.transitions.scrollVert = function($cont, $slides, opts) {
 $cont.css('overflow','hidden');
 opts.before.push(function(curr, next, opts, fwd) {
 jQuery(this).show();
 var currH = curr.offsetHeight, nextH = next.offsetHeight;
 opts.cssBefore = fwd ? { top: -nextH } : { top: nextH };
 opts.animIn.top = 0;
 opts.animOut.top = fwd ? currH : -currH;
 $slides.not(curr).css(opts.cssBefore);
 });
 opts.cssFirst = { top: 0 };
 opts.cssAfter = { display: 'none' }
};

jQuery.fn.cycle.transitions.slideX = function($cont, $slides, opts) {
 opts.animIn = { width: 'show' };
 opts.animOut = { width: 'hide' };
};
jQuery.fn.cycle.transitions.slideY = function($cont, $slides, opts) {
 opts.animIn = { height: 'show' };
 opts.animOut = { height: 'hide' };
};

jQuery.fn.cycle.transitions.shuffle = function($cont, $slides, opts) {
 var w = $cont.css('overflow', 'visible').width();
 $slides.css({left: 0, top: 0});
 opts.before.push(function() { jQuery(this).show() });
 opts.speed = opts.speed / 2; // shuffle has 2 transitions 
 opts.random = 0;
 opts.shuffle = opts.shuffle || {left:-w, top:15};
 opts.els = [];
 for (var i=0; i < $slides.length; i++)
 opts.els.push($slides[i]);

 opts.fxFn = function(curr, next, opts, cb) {
 var $el = jQuery(curr);
 $el.animate(opts.shuffle, opts.speedIn, opts.easeIn, function() {
 opts.els.push(opts.els.shift());
 for (var i=0, len=opts.els.length; i < len; i++)
 jQuery(opts.els[i]).css('z-index', len-i);
 $el.animate({left:0, top:0}, opts.speedOut, opts.easeOut, function() {
 jQuery(this).hide();
 if (cb) cb();
 });
 });
 };
};

jQuery.fn.cycle.transitions.turnUp = function($cont, $slides, opts) {
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore.top = next.cycleH;
 opts.animIn.height = next.cycleH;
 });
 opts.cssFirst = { top: 0 };
 opts.cssBefore = { height: 0 };
 opts.animIn = { top: 0 };
 opts.animOut = { height: 0 };
 opts.cssAfter = { display: 'none' };
};
jQuery.fn.cycle.transitions.turnDown = function($cont, $slides, opts) {
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.animIn.height = next.cycleH;
 opts.animOut.top = curr.cycleH;
 });
 opts.cssFirst = { top: 0 };
 opts.cssBefore = { top: 0, height: 0 };
 opts.animOut = { height: 0 };
 opts.cssAfter = { display: 'none' };
};
jQuery.fn.cycle.transitions.turnLeft = function($cont, $slides, opts) {
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore.left = next.cycleW;
 opts.animIn.width = next.cycleW;
 });
 opts.cssBefore = { width: 0 };
 opts.animIn = { left: 0 };
 opts.animOut = { width: 0 };
 opts.cssAfter = { display: 'none' };
};
jQuery.fn.cycle.transitions.turnRight = function($cont, $slides, opts) {
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.animIn.width = next.cycleW;
 opts.animOut.left = curr.cycleW;
 });
 opts.cssBefore = { left: 0, width: 0 };
 opts.animIn = { left: 0 };
 opts.animOut = { width: 0 };
 opts.cssAfter = { display: 'none' };
};

// zoom
jQuery.fn.cycle.transitions.zoom = function($cont, $slides, opts) {
 opts.cssFirst = { top:0, left: 0 }; 
 opts.cssAfter = { display: 'none' };
 
 opts.before.push(function(curr, next, opts) {
 jQuery(this).show();
 opts.cssBefore = { width: 0, height: 0, top: next.cycleH/2, left: next.cycleW/2 };
 opts.animIn = { top: 0, left: 0, width: next.cycleW, height: next.cycleH };
 opts.animOut = { width: 0, height: 0, top: curr.cycleH/2, left: curr.cycleW/2 };
 }); 
};