/*
 * jQuery Cycle Lite Plugin
 * http://malsup.com/jquery/cycle/lite/
 * Copyright (c) 2008-2011 M. Alsup
 * Version: 1.3 (01-JUN-2011)
 * 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 v1.3.2 or later
 */
;(function($) {

var ver = 'Lite-1.3';

$.fn.cycle = function(options) {
    return this.each(function() {
        options = options || {};
        
        if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
        this.cycleTimeout = 0;
        this.cyclePause = 0;
        
        var $cont = $(this);
        var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
        var els = $slides.get();
        if (els.length < 2) {
            window.console && console.log('terminating; too few slides: ' + els.length);
            return; // don't bother
        }

        // support metadata plugin (v1.0 and v2.0)
        var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});
		var meta = $.isFunction($cont.data) ? $cont.data(opts.metaAttr) : null;
		if (meta)
			opts = $.extend(opts, meta);
            
        opts.before = opts.before ? [opts.before] : [];
        opts.after = opts.after ? [opts.after] : [];
        opts.after.unshift(function(){ opts.busy=0; });
            
        // allow shorthand overrides of width, height and timeout
        var cls = this.className;
        opts.width = parseInt((cls.match(/w:(\d+)/)||[])[1]) || opts.width;
        opts.height = 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 (opts.width) 
            $cont.width(opts.width);
        if (opts.height && opts.height != 'auto') 
            $cont.height(opts.height);

        var first = 0;
        $slides.css({position: 'absolute', top:0, left:0}).each(function(i) { 
            $(this).css('z-index', els.length-i) 
        });
        
        $(els[first]).css('opacity',1).show(); // opacity bit needed to handle reinit case
        if ($.browser.msie) els[first].style.removeAttribute('filter');

        if (opts.fit && opts.width) 
            $slides.width(opts.width);
        if (opts.fit && opts.height && opts.height != 'auto') 
            $slides.height(opts.height);
        if (opts.pause) 
            $cont.hover(function(){this.cyclePause=1;}, function(){this.cyclePause=0;});

        var txFn = $.fn.cycle.transitions[opts.fx];
		txFn && txFn($cont, $slides, opts);
        
        $slides.each(function() {
            var $el = $(this);
            this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
            this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();
        });

        if (opts.cssFirst)
            $($slides[first]).css(opts.cssFirst);

        if (opts.timeout) {
            // ensure that timeout and speed settings are sane
            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;
        }
        opts.speedIn = opts.speed;
        opts.speedOut = opts.speed;

 		opts.slideCount = els.length;
        opts.currSlide = first;
        opts.nextSlide = 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.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.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) {
        if (opts.before.length)
            $.each(opts.before, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
        var after = function() {
            if ($.browser.msie)
                this.style.removeAttribute('filter');
            $.each(opts.after, function(i,o) { o.apply(next, [curr, next, opts, fwd]); });
        };

        if (opts.nextSlide != opts.currSlide) {
            opts.busy = 1;
            $.fn.cycle.custom(curr, next, opts, after);
        }
        var roll = (opts.nextSlide + 1) == els.length;
        opts.nextSlide = roll ? 0 : opts.nextSlide+1;
        opts.currSlide = roll ? els.length-1 : opts.nextSlide-1;
    }
	setImgNum(opts.currSlide);
    if (opts.timeout)
        p.cycleTimeout = setTimeout(function() { go(els,opts,0,!opts.rev) }, opts.timeout);
};

// advance slide forward or back
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;
    }
    go(els, opts, 1, val>=0);
    return false;
};

$.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() {
        $l.css(opts.cssAfter);
        if (!opts.sync) fn();
    });
    if (opts.sync) fn();
};

$.fn.cycle.transitions = {
    fade: function($cont, $slides, opts) {
		$slides.not(':eq(0)').hide();
		opts.cssBefore = { opacity: 0, display: 'block' };
		opts.cssAfter  = { display: 'none' };
		opts.animOut = { opacity: 0 };
		opts.animIn = { opacity: 1 };
    },
    fadeout: function($cont, $slides, opts) {
		opts.before.push(function(curr,next,opts,fwd) {
			$(curr).css('zIndex',opts.slideCount + (fwd === true ? 1 : 0));
			$(next).css('zIndex',opts.slideCount + (fwd === true ? 0 : 1));
		});
		$slides.not(':eq(0)').hide();
		opts.cssBefore = { opacity: 1, display: 'block', zIndex: 1 };
		opts.cssAfter  = { display: 'none', zIndex: 0 };
		opts.animOut = { opacity: 0 };
    }
};

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

// @see: http://malsup.com/jquery/cycle/lite/
$.fn.cycle.defaults = {
	animIn:        {},
	animOut:       {},
	fx:           'fade',
    after:         null, 
    before:        null, 
	cssBefore:     {},
	cssAfter:      {},
    delay:         0,    
    fit:           0,    
    height:       'auto',
	metaAttr:     'cycle',
    next:          null, 
    pause:         0,    
    prev:          null, 
    speed:         1000, 
    slideExpr:     null,
    sync:          1,    
    timeout:       4000 
};

})(jQuery);
$.fn.pager = function(clas, options) {
	
	var settings = {		
		navId: 'nav',
		navClass: 'nav',
		navAttach: 'append',
		highlightClass: 'highlight',
		prevText: '&laquo;',
		nextText: '&raquo;',
		linkText: null,
		linkWrap: null,
		height: null
	}
	if(options) $.extend(settings, options);
	
		
	return this.each( function () {
		
		var me = $(this);
		var size;
	  	var i = 0;		
		var navid = '#'+settings.navId;
		
		function init () {
			size = $(clas, me).not(navid).size();
			if(settings.height == null) {			
				settings.height = getHighest();
			}
			if(size > 1) {
				makeNav();
				show();
				highlight();
			}			
			sizePanel();
			if(settings.linkWrap != null) {
				linkWrap();
			}
		}
		function makeNav () {		
			var str = '<div id="'+settings.navId+'" class="'+settings.navClass+'">';
			str += '<a href="#" rel="prev">'+settings.prevText+'</a>';
			for(var i = 0; i < size; i++) {
				var j = i+1;
				str += '<a href="#" rel="'+j+'">';
				str += (settings.linkText == null) ? j : settings.linkText[j-1];				
				str += '</a>';
			}
			str += '<a href="#" rel="next">'+settings.nextText+'</a>';
			str += '</div>';
			switch (settings.navAttach) {		
				case 'before':
					$(me).before(str);
					break;
				case 'after':		
					$(me).after(str);
					break;
				case 'prepend':
					$(me).prepend(str);
					break;
				default:
					$(me).append(str);
					break;
			}
		}
		function show () {
			$(me).find(clas).not(navid).hide();
			var show = $(me).find(clas).not(navid).get(i);
			$(show).show();
		}		
		function highlight () {
			$(me).find(navid).find('a').removeClass(settings.highlightClass);
			var show = $(me).find(navid).find('a').get(i+1);			
			$(show).addClass(settings.highlightClass);
		}

		function sizePanel () {
			if($.browser.msie) {
				$(me).find(clas).not(navid).css( {
					height: settings.height
				});	
			} else {
				$(me).find(clas).not(navid).css( {
					minHeight: settings.height
				});
			}
		}
		function getHighest () {
			var highest = 0;
			$(me).find(clas).not(navid).each(function () {
				
				if(this.offsetHeight > highest) {
					highest = this.offsetHeight;
				}
			});
			highest = highest + "px";
			return highest;
		}
		function getNavHeight () {
			var nav = $(navid).get(0);
			return nav.offsetHeight;
		}
		function linkWrap () {
			$(me).find(navid).find("a").wrap(settings.linkWrap);
		}
		init();
		$(this).find(navid).find("a").click(function () {

			if($(this).attr('rel') == 'next') {
				if(i + 1 < size) {
					i = i+1;
				}
			} else if($(this).attr('rel') == 'prev') { 
				if(i > 0) {	
					i = i-1;
				}
			} else {		
				var j = $(this).attr('rel');	
				i = j-1;		
			}
			show();
			highlight();
			return false;
		});
	});	
}