/**
 * 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){return this.move(1,time,fn);},prev:function(time,fn){return this.move(-1,time,fn);},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;

// next to last item must work
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); 		
}
});

/*
if ($.isFunction($.fn.mousewheel)) { 
root.bind("mousewheel.scrollable", function(e, delta)  {
// opera goes to opposite direction
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: false,
loop: true,
interval: 3000,			
speed: 600,
keyboard: true,			
activeClass:'active',
disabledClass: 'disabled',
hoverClass: null,			
easing: 'swing',
items: '.slideshowItems',
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);