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461 lines
18 KiB
JavaScript
461 lines
18 KiB
JavaScript
/*
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* jQuery Cycle Plugin for light-weight slideshows
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* Examples and documentation at: http://malsup.com/jquery/cycle/
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* Copyright (c) 2007-2008 M. Alsup
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* Version: 2.22 (06/08/2008)
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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* Requires: jQuery v1.1.3.1 or later
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*
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* Based on the work of:
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* 1) Matt Oakes (http://portfolio.gizone.co.uk/applications/slideshow/)
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* 2) Torsten Baldes (http://medienfreunde.com/lab/innerfade/)
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* 3) Benjamin Sterling (http://www.benjaminsterling.com/experiments/jqShuffle/)
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*/
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(function($) {
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var ver = '2.22';
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var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent);
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function log() {
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if (window.console && window.console.log)
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window.console.log('[cycle] ' + Array.prototype.join.call(arguments,''));
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};
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$.fn.cycle = function(options) {
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return this.each(function() {
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options = options || {};
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if (options.constructor == String) {
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switch(options) {
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case 'stop':
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if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
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this.cycleTimeout = 0;
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return;
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case 'pause':
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this.cyclePause = 1;
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return;
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case 'resume':
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this.cyclePause = 0;
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return;
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default:
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options = { fx: options };
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};
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}
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// stop existing slideshow for this container (if there is one)
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if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
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this.cycleTimeout = 0;
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this.cyclePause = 0;
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var $cont = $(this);
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var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
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var els = $slides.get();
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if (els.length < 2) {
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log('terminating; too few slides: ' + els.length);
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return; // don't bother
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}
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// support metadata plugin (v1.0 and v2.0)
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var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});
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if (opts.autostop)
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opts.countdown = opts.autostopCount || els.length;
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opts.before = opts.before ? [opts.before] : [];
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opts.after = opts.after ? [opts.after] : [];
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opts.after.unshift(function(){ opts.busy=0; });
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if (opts.continuous)
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opts.after.push(function() { go(els,opts,0,!opts.rev); });
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// clearType corrections
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if (ie6 && opts.cleartype && !opts.cleartypeNoBg)
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clearTypeFix($slides);
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// allow shorthand overrides of width, height and timeout
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var cls = this.className;
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opts.width = parseInt((cls.match(/w:(\d+)/)||[])[1]) || opts.width;
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opts.height = parseInt((cls.match(/h:(\d+)/)||[])[1]) || opts.height;
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opts.timeout = parseInt((cls.match(/t:(\d+)/)||[])[1]) || opts.timeout;
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if ($cont.css('position') == 'static')
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$cont.css('position', 'relative');
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if (opts.width)
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$cont.width(opts.width);
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if (opts.height && opts.height != 'auto')
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$cont.height(opts.height);
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if (opts.random) {
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opts.randomMap = [];
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for (var i = 0; i < els.length; i++)
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opts.randomMap.push(i);
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opts.randomMap.sort(function(a,b) {return Math.random() - 0.5;});
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opts.randomIndex = 0;
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opts.startingSlide = opts.randomMap[0];
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}
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else if (opts.startingSlide >= els.length)
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opts.startingSlide = 0; // catch bogus input
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var first = opts.startingSlide || 0;
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$slides.css({position: 'absolute', top:0, left:0}).hide().each(function(i) {
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var z = first ? i >= first ? els.length - (i-first) : first-i : els.length-i;
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$(this).css('z-index', z)
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});
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$(els[first]).css('opacity',1).show(); // opacity bit needed to handle reinit case
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if ($.browser.msie) els[first].style.removeAttribute('filter');
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if (opts.fit && opts.width)
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$slides.width(opts.width);
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if (opts.fit && opts.height && opts.height != 'auto')
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$slides.height(opts.height);
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if (opts.pause)
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$cont.hover(function(){this.cyclePause=1;}, function(){this.cyclePause=0;});
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// run transition init fn
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var init = $.fn.cycle.transitions[opts.fx];
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if ($.isFunction(init))
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init($cont, $slides, opts);
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else if (opts.fx != 'custom')
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log('unknown transition: ' + opts.fx);
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$slides.each(function() {
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var $el = $(this);
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this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
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this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();
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});
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opts.cssBefore = opts.cssBefore || {};
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opts.animIn = opts.animIn || {};
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opts.animOut = opts.animOut || {};
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$slides.not(':eq('+first+')').css(opts.cssBefore);
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if (opts.cssFirst)
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$($slides[first]).css(opts.cssFirst);
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if (opts.timeout) {
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// ensure that timeout and speed settings are sane
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if (opts.speed.constructor == String)
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opts.speed = {slow: 600, fast: 200}[opts.speed] || 400;
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if (!opts.sync)
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opts.speed = opts.speed / 2;
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while((opts.timeout - opts.speed) < 250)
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opts.timeout += opts.speed;
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}
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if (opts.easing)
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opts.easeIn = opts.easeOut = opts.easing;
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if (!opts.speedIn)
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opts.speedIn = opts.speed;
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if (!opts.speedOut)
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opts.speedOut = opts.speed;
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opts.slideCount = els.length;
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opts.currSlide = first;
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if (opts.random) {
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opts.nextSlide = opts.currSlide;
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if (++opts.randomIndex == els.length)
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opts.randomIndex = 0;
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opts.nextSlide = opts.randomMap[opts.randomIndex];
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}
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else
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opts.nextSlide = opts.startingSlide >= (els.length-1) ? 0 : opts.startingSlide+1;
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// fire artificial events
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var e0 = $slides[first];
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if (opts.before.length)
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opts.before[0].apply(e0, [e0, e0, opts, true]);
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if (opts.after.length > 1)
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opts.after[1].apply(e0, [e0, e0, opts, true]);
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if (opts.click && !opts.next)
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opts.next = opts.click;
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if (opts.next)
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$(opts.next).bind('click', function(){return advance(els,opts,opts.rev?-1:1)});
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if (opts.prev)
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$(opts.prev).bind('click', function(){return advance(els,opts,opts.rev?1:-1)});
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if (opts.pager)
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buildPager(els,opts);
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// expose fn for adding slides after the show has started
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opts.addSlide = function(newSlide) {
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var $s = $(newSlide), s = $s[0];
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if (!opts.autostopCount)
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opts.countdown++;
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els.push(s);
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if (opts.els)
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opts.els.push(s); // shuffle needs this
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opts.slideCount = els.length;
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$s.css('position','absolute').appendTo($cont);
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if (ie6 && opts.cleartype && !opts.cleartypeNoBg)
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clearTypeFix($s);
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if (opts.fit && opts.width)
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$s.width(opts.width);
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if (opts.fit && opts.height && opts.height != 'auto')
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$slides.height(opts.height);
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s.cycleH = (opts.fit && opts.height) ? opts.height : $s.height();
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s.cycleW = (opts.fit && opts.width) ? opts.width : $s.width();
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$s.css(opts.cssBefore);
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if (typeof opts.onAddSlide == 'function')
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opts.onAddSlide($s);
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};
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if (opts.timeout || opts.continuous)
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this.cycleTimeout = setTimeout(
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function(){go(els,opts,0,!opts.rev)},
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opts.continuous ? 10 : opts.timeout + (opts.delay||0));
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});
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};
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function go(els, opts, manual, fwd) {
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if (opts.busy) return;
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var p = els[0].parentNode, curr = els[opts.currSlide], next = els[opts.nextSlide];
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if (p.cycleTimeout === 0 && !manual)
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return;
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if (!manual && !p.cyclePause &&
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((opts.autostop && (--opts.countdown <= 0)) ||
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(opts.nowrap && !opts.random && opts.nextSlide < opts.currSlide))) {
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if (opts.end)
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opts.end(opts);
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return;
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}
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if (manual || !p.cyclePause) {
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if (opts.before.length)
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$.each(opts.before, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
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var after = function() {
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if ($.browser.msie && opts.cleartype)
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this.style.removeAttribute('filter');
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$.each(opts.after, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
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};
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if (opts.nextSlide != opts.currSlide) {
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opts.busy = 1;
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if (opts.fxFn)
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opts.fxFn(curr, next, opts, after, fwd);
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else if ($.isFunction($.fn.cycle[opts.fx]))
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$.fn.cycle[opts.fx](curr, next, opts, after);
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else
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$.fn.cycle.custom(curr, next, opts, after);
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}
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if (opts.random) {
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opts.currSlide = opts.nextSlide;
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if (++opts.randomIndex == els.length)
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opts.randomIndex = 0;
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opts.nextSlide = opts.randomMap[opts.randomIndex];
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}
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else { // sequence
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var roll = (opts.nextSlide + 1) == els.length;
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opts.nextSlide = roll ? 0 : opts.nextSlide+1;
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opts.currSlide = roll ? els.length-1 : opts.nextSlide-1;
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}
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if (opts.pager)
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$.fn.cycle.updateActivePagerLink(opts.pager, opts.currSlide);
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}
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if (opts.timeout && !opts.continuous)
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p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, opts.timeout);
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else if (opts.continuous && p.cyclePause)
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p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, 10);
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};
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$.fn.cycle.updateActivePagerLink = function(pager, currSlide) {
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$(pager).find('a').removeClass('activeSlide').filter('a:eq('+currSlide+')').addClass('activeSlide');
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};
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// advance slide forward or back
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function advance(els, opts, val) {
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var p = els[0].parentNode, timeout = p.cycleTimeout;
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if (timeout) {
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clearTimeout(timeout);
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p.cycleTimeout = 0;
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}
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opts.nextSlide = opts.currSlide + val;
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if (opts.nextSlide < 0) {
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if (opts.nowrap) return false;
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opts.nextSlide = els.length - 1;
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}
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else if (opts.nextSlide >= els.length) {
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if (opts.nowrap) return false;
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opts.nextSlide = 0;
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}
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if (opts.prevNextClick && typeof opts.prevNextClick == 'function')
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opts.prevNextClick(val > 0, opts.nextSlide, els[opts.nextSlide]);
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go(els, opts, 1, val>=0);
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return false;
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};
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function buildPager(els, opts) {
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var $p = $(opts.pager);
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$.each(els, function(i,o) {
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var $a = (typeof opts.pagerAnchorBuilder == 'function')
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? $(opts.pagerAnchorBuilder(i,o))
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: $('<a href="#">'+(i+1998)+'</a>');
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// don't reparent if anchor is in the dom
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if ($a.parents('body').length == 0)
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$a.appendTo($p);
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$a.bind(opts.pagerEvent, function() {
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opts.nextSlide = i;
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var p = els[0].parentNode, timeout = p.cycleTimeout;
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if (timeout) {
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clearTimeout(timeout);
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p.cycleTimeout = 0;
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}
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if (typeof opts.pagerClick == 'function')
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opts.pagerClick(opts.nextSlide, els[opts.nextSlide]);
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go(els,opts,1,!opts.rev);
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return false;
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});
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});
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//$p.find('a').filter('a:eq('+opts.startingSlide+')').addClass('activeSlide');
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$.fn.cycle.updateActivePagerLink(opts.pager, opts.startingSlide);
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};
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// this fixes clearType problems in ie6 by setting an explicit bg color
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function clearTypeFix($slides) {
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function hex(s) {
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var s = parseInt(s).toString(16);
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return s.length < 2 ? '0'+s : s;
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};
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function getBg(e) {
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for ( ; e && e.nodeName.toLowerCase() != 'html'; e = e.parentNode) {
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var v = $.css(e,'background-color');
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if (v.indexOf('rgb') >= 0 ) {
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var rgb = v.match(/\d+/g);
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return '#'+ hex(rgb[0]) + hex(rgb[1]) + hex(rgb[2]);
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}
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if (v && v != 'transparent')
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return v;
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}
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return '#ffffff';
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};
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$slides.each(function() { $(this).css('background-color', getBg(this)); });
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};
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$.fn.cycle.custom = function(curr, next, opts, cb) {
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var $l = $(curr), $n = $(next);
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$n.css(opts.cssBefore);
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var fn = function() {$n.animate(opts.animIn, opts.speedIn, opts.easeIn, cb)};
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$l.animate(opts.animOut, opts.speedOut, opts.easeOut, function() {
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if (opts.cssAfter) $l.css(opts.cssAfter);
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if (!opts.sync) fn();
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});
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if (opts.sync) fn();
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};
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$.fn.cycle.transitions = {
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fade: function($cont, $slides, opts) {
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$slides.not(':eq('+opts.startingSlide+')').css('opacity',0);
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opts.before.push(function() { $(this).show() });
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opts.animIn = { opacity: 1 };
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opts.animOut = { opacity: 0 };
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opts.cssBefore = { opacity: 0 };
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opts.cssAfter = { display: 'none' };
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}
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};
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$.fn.cycle.ver = function() { return ver; };
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// override these globally if you like (they are all optional)
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$.fn.cycle.defaults = {
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fx: 'scollLeft', // one of: fade, shuffle, zoom, scrollLeft, etc
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timeout: 4000, // milliseconds between slide transitions (0 to disable auto advance)
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continuous: 0, // true to start next transition immediately after current one completes
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speed: 800, // speed of the transition (any valid fx speed value)
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speedIn: null, // speed of the 'in' transition
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speedOut: null, // speed of the 'out' transition
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next: null, // id of element to use as click trigger for next slide
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prev: null, // id of element to use as click trigger for previous slide
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prevNextClick: null, // callback fn for prev/next clicks: function(isNext, zeroBasedSlideIndex, slideElement)
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pager: null, // id of element to use as pager container
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pagerClick: null, // callback fn for pager clicks: function(zeroBasedSlideIndex, slideElement)
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pagerEvent: 'click', // event which drives the pager navigation
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pagerAnchorBuilder: null, // callback fn for building anchor links
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before: null, // transition callback (scope set to element to be shown)
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after: null, // transition callback (scope set to element that was shown)
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end: null, // callback invoked when the slideshow terminates (use with autostop or nowrap options)
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easing: null, // easing method for both in and out transitions
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easeIn: null, // easing for "in" transition
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easeOut: null, // easing for "out" transition
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shuffle: null, // coords for shuffle animation, ex: { top:15, left: 200 }
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animIn: null, // properties that define how the slide animates in
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animOut: null, // properties that define how the slide animates out
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cssBefore: null, // properties that define the initial state of the slide before transitioning in
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cssAfter: null, // properties that defined the state of the slide after transitioning out
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fxFn: null, // function used to control the transition
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height: 'auto', // container height
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startingSlide: 0, // zero-based index of the first slide to be displayed
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sync: 1, // true if in/out transitions should occur simultaneously
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random: 0, // true for random, false for sequence (not applicable to shuffle fx)
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fit: 0, // force slides to fit container
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pause: 1, // true to enable "pause on hover"
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autostop: 0, // true to end slideshow after X transitions (where X == slide count)
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autostopCount: 0, // number of transitions (optionally used with autostop to define X)
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delay: 0, // additional delay (in ms) for first transition (hint: can be negative)
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slideExpr: null, // expression for selecting slides (if something other than all children is required)
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cleartype: 0, // true if clearType corrections should be applied (for IE)
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nowrap: 0 // true to prevent slideshow from wrapping
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};
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})(jQuery);
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/*
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* jQuery Cycle Plugin Transition Definitions
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* This script is a plugin for the jQuery Cycle Plugin
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* Examples and documentation at: http://malsup.com/jquery/cycle/
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* Copyright (c) 2007-2008 M. Alsup
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* Version: 2.22
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*/
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(function($) {
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//
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// These functions define one-time slide initialization for the named
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// transitions. To save file size feel free to remove any of these that you
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// don't need.
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//
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// scrollLeft/Right
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$.fn.cycle.transitions.scrollLeft = function($cont, $slides, opts) {
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$cont.css('overflow','hidden');
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opts.before.push(function(curr, next, opts) {
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$(this).show();
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opts.cssBefore.left = next.offsetWidth;
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opts.animOut.left = 0-curr.offsetWidth;
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});
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opts.cssFirst = { left: 0 };
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opts.animIn = { left: 0 };
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};
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$.fn.cycle.transitions.scrollRight = function($cont, $slides, opts) {
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$cont.css('overflow','hidden');
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opts.before.push(function(curr, next, opts) {
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$(this).show();
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opts.cssBefore.left = 0-next.offsetWidth;
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opts.animOut.left = curr.offsetWidth;
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});
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opts.cssFirst = { left: 0 };
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opts.animIn = { left: 0 };
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};
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$.fn.cycle.transitions.scrollHorz = function($cont, $slides, opts) {
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$cont.css('overflow','hidden').width();
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// $slides.show();
|
|
opts.before.push(function(curr, next, opts, fwd) {
|
|
$(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);
|