/**
 * jQuery[a] - Animated scrolling of series
 * Copyright (c) 2007-2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 * Dual licensed under MIT and GPL.
 * Date: 3/20/2008
 * @author Ariel Flesler
 * @version 1.2.1
 *
 * http://flesler.blogspot.com/2008/02/jqueryserialscroll.html
 */
;(function($){
	var a='serialScroll',b='.'+a,c='bind',C=$[a]=function(b){$.scrollTo.window()[a](b)};
	C.defaults={
		duration:1e3,
		axis:'x',
		event:'click',
		start:0,
		step:4,
		lock:1,
		cycle:1,
		constant:1
	};
	
	$.fn[a]=function(y){
		y=$.extend({},C.defaults,y);
		
		var z=y.event,A=y.step,B=y.lazy;
		return this.each(function(){
			var j=y.target?this:document,k=$(y.target||this,j),l=k[0],m=y.items,o=y.start,p=y.interval,q=y.navigation,r;
			if(!B)m=w();
			if(y.force)t({},o);

			$(y.prev||[],j)[c](z,-A,s);
			$(y.next||[],j)[c](z,A,s);
			if(!l.ssbound)
				k[c]('prev'+b,-A,s)[c]('next'+b,A,s)[c]('goto'+b,t);

			if(p)
				k[c]('start'+b,function(e){
					if(!p){
						v();
						p=1;
						u()
					}
				})
				[c]('stop'+b,function(){
					v();
					p=0
				});
				
				k[c]('notify'+b,function(e,a){
					var i=x(a);
					if(i>-1)o=i
				});
				
				l.ssbound=1;
				if(y.jump)(B?k:w())[c](z,function(e){t(e,x(e.target))});
				
				if(q)q=$(q,j)[c](z,function(e){
					e.data=Math.round(w().length/q.length)*q.index(this);
					t(e,this)
				});
				
				function s(e){
					e.data+=o;
					t(e,this)
				};
				function t(e,a){
					if(!isNaN(a)){
						e.data=a;
						a=l
					}
						
					var c=e.data,n,d=e.type,f=y.exclude?w().slice(0,-y.exclude):w(),g=f.length,h=f[c],i=y.duration;
						
					if(d)e.preventDefault();
					if(p){
						v();
						r=setTimeout(u,y.interval)
					}
					if(!h){
						n=c<0?0:n=g;//-1;
						if(o!=n)c=n;
						else if(!y.cycle)return;
						else c=g-n-1;
						h=f[c]
					}
						
					if(!h||d&&o==c||y.lock&&k.is(':animated')||d&&y.onBefore&&y.onBefore.call(a,e,h,k,w(),c)===!1)
						return;
					if(y.stop)
						k.queue('fx',[]).stop();
					
					if(y.constant)
						i=Math.abs(i/A*(o-c));

					k.scrollTo(h,i,y).trigger('notify'+b,[c])};
					
					function u(){
						k.trigger('next'+b)
					};
					function v(){
						clearTimeout(r)
					};
					function w(){
						return $(m,l)
					};
					function x(a){
						if(!isNaN(a))
							return a;
						var b=w(),i;
						while((i=b.index(a))==-1&&a!=l)
							a=a.parentNode;
						return i
					}
				})
			}
		})(jQuery);