/**
 * jquery.scrollable 1.0.5 - Scroll your HTML with eye candy.
 * 
 * Copyright (c) 2009 Tero Piirainen
 * http://flowplayer.org/tools/scrollable.html
 *
 * Dual licensed under MIT and GPL 2+ licenses
 * http://www.opensource.org/licenses
 *
 * Launch  : March 2008
 * Date: 2009-06-12 11:02:45 +0000 (Fri, 12 Jun 2009)
 * Revision: 1911 
 */
(function($){$.tools=$.tools||{version:{}};$.tools.version.scrollable='1.0.5';var current=null;function Scrollable(root,conf){var self=this;if(!current){current=self}function bind(name,fn){$(self).bind(name,function(e,args){if(fn&&fn.call(this,args.index)===false&&args){args.proceed=false}});return self}$.each(conf,function(name,fn){if($.isFunction(fn)){bind(name,fn)}});var horizontal=!conf.vertical;var wrap=$(conf.items,root);var index=0;function find(query,ctx){return query.indexOf("#")!=-1?$(query).eq(0):ctx.siblings(query).eq(0)}var navi=find(conf.navi,root);var prev=find(conf.prev,root);var next=find(conf.next,root);var prevPage=find(conf.prevPage,root);var nextPage=find(conf.nextPage,root);$.extend(self,{getIndex:function(){return index},getConf:function(){return conf},getSize:function(){return self.getItems().size()},getPageAmount:function(){return Math.ceil(this.getSize()/conf.size)},getPageIndex:function(){return Math.ceil(index/conf.size)},getRoot:function(){return root},getItemWrap:function(){return wrap},getItems:function(){return wrap.children()},getVisibleItems:function(){return self.getItems().slice(index,index+conf.size)},seekTo:function(i,time,fn){if(time===undefined){time=conf.speed}if($.isFunction(time)){fn=time;time=conf.speed}if(i<0){i=0}if(i>self.getSize()-conf.size){return self}var item=self.getItems().eq(i);if(!item.length){return self}var p={index:i,proceed:true};$(self).trigger("onBeforeSeek",p);if(!p.proceed){return self}if(horizontal){var left=-item.position().left;wrap.animate({left:left},time,conf.easing,fn?function(){fn.call(self)}:null)}else{var top=-item.position().top;wrap.animate({top:top},time,conf.easing,fn?function(){fn.call(self)}:null)}if(navi.length){var klass=conf.activeClass;var page=Math.ceil(i/conf.size);page=Math.min(page,navi.children().length-1);navi.children().removeClass(klass).eq(page).addClass(klass)}if(i===0){prev.add(prevPage).addClass(conf.disabledClass)}else{prev.add(prevPage).removeClass(conf.disabledClass)}if(i>=self.getSize()-conf.size){next.add(nextPage).addClass(conf.disabledClass)}else{next.add(nextPage).removeClass(conf.disabledClass)}current=self;index=i;$(self).trigger("onSeek",{index:i});return self},move:function(offset,time,fn){var to=index+offset;if(conf.loop&&to>(self.getSize()-conf.size)){to=0}return this.seekTo(to,time,fn)},next:function(time,fn){var ret=this.move(1,time,fn);if(conf.interval!=0){clearInterval(timer);timer=0;setTimer()}return ret},prev:function(time,fn){var ret=this.move(-1,time,fn);if(conf.interval!=0){clearInterval(timer);timer=0;setTimer()}return ret},movePage:function(offset,time,fn){return this.move(conf.size*offset,time,fn)},setPage:function(page,time,fn){var size=conf.size;var index=size*page;var lastPage=index+size>=this.getSize();if(lastPage){index=this.getSize()-conf.size}return this.seekTo(index,time,fn)},prevPage:function(time,fn){return this.setPage(this.getPageIndex()-1,time,fn)},nextPage:function(time,fn){return this.setPage(this.getPageIndex()+1,time,fn)},begin:function(time,fn){return this.seekTo(0,time,fn)},end:function(time,fn){return this.seekTo(this.getSize()-conf.size,time,fn)},reload:function(){return load()},click:function(index,time,fn){var item=self.getItems().eq(index);var klass=conf.activeClass;if(index<0||index>=this.getSize()){return self}if(conf.size==2){if(index==self.getIndex()){index--}self.getItems().removeClass(klass);item.addClass(klass);return this.seekTo(index,time,fn)}if(!item.hasClass(klass)){self.getItems().removeClass(klass);item.addClass(klass);var delta=Math.floor(conf.size/2);var to=index-delta;if(to>self.getSize()-conf.size){to=self.getSize()-conf.size}if(to!==index){return this.seekTo(to,time,fn)}}return self},onBeforeSeek:function(fn){return bind("onBeforeSeek",fn)},onSeek:function(fn){return bind("onSeek",fn)},stop:function(){clearInterval(timer);timer=0;conf.o_interval=conf.interval;conf.interval=0},play:function(){conf.interval=conf.o_interval;setTimer()}});if($.isFunction($.fn.mousewheel)){root.bind("mousewheel.scrollable",function(e,delta){var step=$.browser.opera?1:-1;self.move(delta>0?step:-step,50);return false})}prev.addClass(conf.disabledClass).click(function(){self.prev()});next.click(function(){self.next()});nextPage.click(function(){self.nextPage()});prevPage.addClass(conf.disabledClass).click(function(){self.prevPage()});if(conf.keyboard){$(document).unbind("keydown.scrollable").bind("keydown.scrollable",function(evt){var el=current;if(!el||evt.altKey||evt.ctrlKey){return}if(horizontal&&(evt.keyCode==37||evt.keyCode==39)){el.move(evt.keyCode==37?-1:1);return evt.preventDefault()}if(!horizontal&&(evt.keyCode==38||evt.keyCode==40)){el.move(evt.keyCode==38?-1:1);return evt.preventDefault()}return true})}function load(){if(navi.is(":empty")||navi.data("me")==self){navi.empty();navi.data("me",self);for(var i=0;i<self.getPageAmount();i++){var item=$("<"+conf.naviItem+"/>").attr("href",i).click(function(e){var el=$(this);el.parent().children().removeClass(conf.activeClass);el.addClass(conf.activeClass);self.setPage(el.attr("href"));return e.preventDefault()});if(i===0){item.addClass(conf.activeClass)}navi.append(item)}}else{var els=navi.children();els.each(function(i){var item=$(this);item.attr("href",i);if(i===0){item.addClass(conf.activeClass)}item.click(function(){navi.find("."+conf.activeClass).removeClass(conf.activeClass);item.addClass(conf.activeClass);self.setPage(item.attr("href"))})})}if(conf.clickable){self.getItems().each(function(index,arg){var el=$(this);if(!el.data("set")){el.bind("click.scrollable",function(){self.click(index)});el.data("set",true)}})}if(conf.hoverClass){self.getItems().hover(function(){$(this).addClass(conf.hoverClass)},function(){$(this).removeClass(conf.hoverClass)})}return self}load();var timer=null;function setTimer(){if(timer){return}timer=setInterval(function(){if(conf.interval===0){clearInterval(timer);timer=0;return}self.next()},conf.interval)}if(conf.interval>0){root.hover(function(){clearInterval(timer);timer=0},function(){setTimer()});setTimer()}}$.fn.scrollable=function(conf){var el=this.eq(typeof conf=='number'?conf:0).data("scrollable");if(el){return el}var opts={size:5,vertical:false,clickable:true,loop:false,interval:0,speed:400,keyboard:true,activeClass:'active',disabledClass:'disabled',hoverClass:null,easing:'swing',items:'.items',prev:'.prev',next:'.next',prevPage:'.prevPage',nextPage:'.nextPage',navi:'.navi',naviItem:'a',api:false,onBeforeSeek:null,onSeek:null};$.extend(opts,conf);this.each(function(){el=new Scrollable($(this),opts);$(this).data("scrollable",el)});return opts.api?el:this}})(jQuery);