/**
 *	SlideItMoo v1.1 - Image slider
 *	(c) 2007-2010 Constantin Boiangiu <http://www.php-help.ro>
 *	MIT-style license.
 **/

var SlideItMoo=new Class({Implements:[Events,Options],options:{overallContainer:null,elementScrolled:null,thumbsContainer:null,itemsSelector:null,itemsVisible:5,elemsSlide:null,itemWidth:null,itemHeight:null,navs:{fwd:'.SlideItMoo_forward',bk:'.SlideItMoo_back'},slideVertical:false,showControls:1,transition:Fx.Transitions.linear,duration:800,direction:1,autoSlide:false,mouseWheelNav:false,startIndex:null},initialize:function(options){this.setOptions(options);this.elements=$(this.options.thumbsContainer).getElements(this.options.itemsSelector);this.totalElements=this.elements.length;if(this.totalElements<=this.options.itemsVisible)return;var defaultSize=this.elements[0].getSize();this.elementWidth=this.options.itemWidth||defaultSize.x;this.elementHeight=this.options.itemHeight||defaultSize.y;this.currentElement=0;this.direction=this.options.direction;this.autoSlideTotal=this.options.autoSlide+this.options.duration;if(this.options.elemsSlide==1)this.options.elemsSlide=null;this.begin()},begin:function(){this.addControls();this.setContainersSize();this.myFx=new Fx.Tween(this.options.thumbsContainer,{property:(this.options.slideVertical?'margin-top':'margin-left'),wait:true,transition:this.options.transition,duration:this.options.duration});if(this.options.mouseWheelNav&&!this.options.autoSlide){$(this.options.thumbsContainer).addEvent('mousewheel',function(ev){new Event(ev).stop();this.slide(-ev.wheel)}.bind(this))}if(this.options.startIndex&&this.options.startIndex>0&&this.options.startIndex<this.elements.length){for(var t=1;t<this.options.startIndex;t++)this.rearange()}if(this.options.autoSlide&&this.elements.length>this.options.itemsVisible)this.startAutoSlide()},resetAll:function(){$(this.options.overallContainer).removeProperty('style');$(this.options.elementScrolled).removeProperty('style');$(this.options.thumbsContainer).removeProperty('style');this.stopAutoSlide();if($defined(this.fwd)){this.fwd.dispose();this.bkwd.dispose()}this.initialize()},setContainersSize:function(){var overallSize={};var scrollSize={};var thumbsSize={};if(this.options.slideVertical){scrollSize.height=this.options.itemsVisible*this.elementHeight;thumbsSize.height=this.totalElements*(this.elementHeight+10)}else{var navsSize=0;if(this.options.showControls){var s1=this.fwd.getSize();var s2=this.bkwd.getSize();var navsSize=s1.x+s2.x}overallSize.width=this.options.itemsVisible*this.elementWidth+navsSize;scrollSize.width=this.options.itemsVisible*this.elementWidth;thumbsSize.width=this.totalElements*(this.elementWidth+10)}$(this.options.overallContainer).set({styles:overallSize});$(this.options.elementScrolled).set({styles:scrollSize});$(this.options.thumbsContainer).set({styles:thumbsSize})},addControls:function(){if(!this.options.showControls||this.elements.length<=this.options.itemsVisible)return;this.fwd=$(this.options.overallContainer).getElement(this.options.navs.fwd);this.bkwd=$(this.options.overallContainer).getElement(this.options.navs.bk);if(this.fwd)this.fwd.addEvent('click',this.slide.pass(1,this));if(this.bkwd)this.bkwd.addEvent('click',this.slide.pass(-1,this))},slide:function(direction){if(this.started)return;this.direction=direction?direction:this.direction;var currentIndex=this.currentIndex();if(this.options.elemsSlide&&this.options.elemsSlide>1&&this.endingElem==null){this.endingElem=this.currentElement;for(var i=0;i<this.options.elemsSlide;i++){this.endingElem+=direction;if(this.endingElem>=this.totalElements)this.endingElem=0;if(this.endingElem<0)this.endingElem=this.totalElements-1}}var s=new Hash();var fxDist=0;if(this.options.slideVertical){s.include('margin-top',-this.elementHeight);fxDist=this.direction==1?-this.elementHeight:0}else{s.include('margin-left',-this.elementWidth);fxDist=this.direction==1?-this.elementWidth:0}if(this.direction==-1){this.rearange();$(this.options.thumbsContainer).setStyles(s)}this.started=true;this.myFx.start(fxDist).chain(function(){this.rearange(true);if(this.options.elemsSlide){if(this.endingElem!==this.currentElement){if(this.options.autoSlide)this.stopAutoSlide();this.slide(this.direction)}else{if(this.options.autoSlide)this.startAutoSlide();this.endingElem=null}}}.bind(this));this.fireEvent('onChange',currentIndex)},rearange:function(rerun){if(rerun)this.started=false;if(rerun&&this.direction==-1)return;this.currentElement=this.currentIndex(this.direction);var s=new Hash();if(this.options.slideVertical)s.include('margin-top',0);else s.include('margin-left',0);$(this.options.thumbsContainer).setStyles(s);if(this.currentElement==1&&this.direction==1){this.elements[0].injectAfter(this.elements[this.totalElements-1]);return}if((this.currentElement==0&&this.direction==1)||(this.direction==-1&&this.currentElement==this.totalElements-1)){this.rearrangeElement(this.elements.getLast(),this.direction==1?this.elements[this.totalElements-2]:this.elements[0]);return}if(this.direction==1)this.rearrangeElement(this.elements[this.currentElement-1],this.elements[this.currentElement-2]);else this.rearrangeElement(this.elements[this.currentElement],this.elements[this.currentElement+1])},rearrangeElement:function(element,indicator){this.direction==1?element.injectAfter(indicator):element.injectBefore(indicator)},currentIndex:function(){var elemIndex=null;switch(this.direction){case 1:elemIndex=this.currentElement>=this.totalElements-1?0:this.currentElement+this.direction;break;case-1:elemIndex=this.currentElement==0?this.totalElements-1:this.currentElement+this.direction;break}return elemIndex},startAutoSlide:function(){this.startIt=this.slide.bind(this).pass(this.direction|1);this.autoSlide=this.startIt.periodical(this.autoSlideTotal,this);this.isRunning=true},stopAutoSlide:function(){$clear(this.autoSlide);this.isRunning=false}})