/** 
 * Copyright (c) 2009 Sylvain Gougouzian (sylvain@gougouzian.fr)
 * MIT (http://www.opensource.org/licenses/mit-license.php) licensed.
 * GNU GPL (http://www.gnu.org/licenses/gpl.html) licensed.
 *
 * jQuery carrousel by Sylvain Gougouzian http://sylvain.gougouzian.fr
 *
 * inspirated of jCarousel http://sorgalla.com/
 *
 * Version: 1.0
 *
 * Requires: jQuery 1.3.2+ 	// http://www.jquery.com
 *
 * Compatible : Internet Explorer 6+, Firefox 1.5+, Safari 3+, Opera 9+, Chrome 0.9+
 */
jQuery(function($){$.fn.carrousel=function(options){var el=this.eq(0).data("carrousel");var opts=$.extend({},$.fn.carrousel.defaults,options);var ctrls=$.extend({},$.fn.carrousel.controls);var effects=$.extend({},$.fn.carrousel.effects);this.each(function(){el=new $carrousel(this,opts,ctrls,effects);});return opts.api?el:null;};$.carrousel=function(e,opts,ctrls,effects){this.e=$(e);$(e).css('position','relative').wrap('<div><div></div></div>');$(e).html($(e).html()+$(e).html());var self=this;var tA=new Date();this.id=($(e).attr('id')?'carrousel_'+tA.getTime():$(e).attr('id'));this.container=$(e).parent();this.container.parent().css('overflow','hidden').append("<a href='#' id='"+this.id+"_prev' class='carrousel_button carrousel_prev'>"+opts.htmlPrevButton+"</a><a href='#' id='"+this.id+"_next' class='carrousel_button carrousel_next'>"+opts.htmlNextButton+"</a><div id='"+this.id+"_legend' class='carrousel_legend'></div>");$('a#'+this.id+'_prev').hide().click(function(){self._animate('prev');return false;});$('a#'+this.id+'_next').hide().click(function(){self._animate('next');return false;});this.aItems=null;this.nbItems=0;this.current=0;this.locked=false;this.block={width:0,height:0};this.dep=-1;this.timerMoving=null;this.opts=opts;this.controls=ctrls;this.effects=effects;this.direction=((opts.direction=='left')||(opts.direction=='top')?'next':'prev');this.pos=((opts.direction=='left')||(opts.direction=='right')?'left':'top');this.vertical=(this.pos=='left'?false:true);this._init();};var $carrousel=$.carrousel;$carrousel.fn=$carrousel.prototype={carrousel:'1.0'};$carrousel.fn.extend=$carrousel.extend=$.extend;$carrousel.fn.extend({_init:function(){var self=this;this.aItems=$('> li',this.e);this.nbItems=this.aItems.length;var item=this.aItems.eq(0);this.block.width=parseInt(item.width())+parseInt(item.css('margin-left'))+parseInt(item.css('margin-right'));this.block.height=parseInt(item.height())+parseInt(item.css('margin-top'))+parseInt(item.css('margin-bottom'));this.container.parent().addClass('carrousel').attr('id',this.id+'_div');var width=(this.vertical?1:parseInt(this.opts.dispNumber))*this.block.width;this.container.addClass('carrousel_carrousel').attr('id',this.id+'_carrousel').css({'overflow':'hidden','position':'relative'}).width(width+'px').height((this.vertical?parseInt(this.opts.dispNumber):1)*this.block.height+'px').parent().width(width+'px');$('ul > li > '+this.opts.mode,this.container).each(function(i){$(this).wrap('<div class="carrousel_item" rel="'+i+'"></div>');});this.e.css(this.pos,'0px').width(this.block.width*(this.vertical?1:this.nbItems));if(this.opts.stopOver){this.container.bind("mouseenter",function(evt){self.locked=true;});this.container.bind("mouseleave",function(evt){self.locked=false;if(self.opts.auto){this.timerMoving=setTimeout(function(){self._animate('next');},self.opts.dispTimeout);}});}if(this.legend=="mouseover"){$('.carrousel_item',this.container).css('cursor','pointer');for(var i=0;i<this.nbItems;i++){$eq=this.aItems.eq(i);$(this.opts.mode,$eq).bind("mouseenter",function(evt){$('div#'+self.id+'_legend').html($(this).attr('title'));});$(this.opts.mode,$eq).bind("mouseleave",function(evt){$('div#'+self.id+'_legend').html("");});}}if(this.legend=="always"){$('div#'+self.id+'_legend').html($(self.opts.mode,this.container).eq(this.realpos(this.current)).attr('title'));}var control=this.opts.controls.split(' ');for(var i=0;i<control.length;i++){if($.isFunction(this.controls[control[i]]))this.controls[control[i]](this);}if(this.opts.mode=='img'){$('.carrousel_item img',this.container).load(function(){$this=$(this);self._alignItem($this.parent());$this.parent().width($this.width()).height($this.height());});}else{this._alignItem($('.carrousel_item',this.aItems.eq(i)));}var effect=this.opts.effects.split(' ');for(var i=0;i<effect.length;i++){if($.isFunction(this.effects.init[effect[i]]))this.effects.init[effect[i]](this);}if(self.opts.auto){setTimeout(function(){self._animate('next');},self.opts.dispTimeout);}},_alignItem:function(item){item.css({'top':this._getAlignHeight(parseInt($(this.opts.mode,item).height())),'left':this._getAlignWidth(parseInt($(this.opts.mode,item).width())),'position':'relative'});},_getAlignHeight:function(size){var top=this.block.height-size;if(this.opts.align.indexOf('top')!=-1){return'0px';}if(this.opts.align.indexOf('bottom')!=-1){return top+'px';}if(this.opts.align.indexOf('center')!=-1){return parseInt(top/2)+'px';}return'0px';},_getAlignWidth:function(size){var left=this.block.width-size;if(this.opts.align.indexOf('left')!=-1){return'0px';}if(this.opts.align.indexOf('right')!=-1){return left+'px';}if(this.opts.align.indexOf('center')!=-1){return parseInt(left/2)+'px';}return'0px';},_animate:function(dir){dir=(dir==undefined?this.direction:dir);if(!this.opts.continuous){if(dir=='next'){if(this.current==((this.nbItems/2)-1)){this.locked=true;}}else{if(this.current==0){this.locked=true;}}}if(!this.locked){this.locked=true;this._beforeMoving(dir);}},_beforeMoving:function(direction){var effect=this.opts.effects.split(' ');for(var i=0;i<effect.length;i++){if($.isFunction(this.effects.before[effect[i]]))this.effects.before[effect[i]](this,(direction=='prev'?-1:1));}this._move(direction);},_move:function(direction){var self=this;var move=this.dep==-1?this.opts.scroll:this.dep;var size=this.vertical?this.block.height:this.block.width;if(direction=='next'){while(parseInt(this.e.css(this.pos))<0){var item=$('> li:first',this.e);$('> li:first',this.e).remove();this.e.append(item);this.e.css(this.pos,parseInt(this.e.css(this.pos))+size);}}else{for(var i=0;i<move;i++){var item=$('> li:last',this.e);$('> li:last',this.e).remove();this.e.prepend(item);}this.e.css(this.pos,parseInt(this.e.css(this.pos))-move*size+'px');}var nb=(direction=='prev'?-1:1)*move;var b=parseInt(this.e.css(this.pos));if(this.vertical){this.e.stop().animate({top:b-nb*this.block.height+'px'},this.opts.speed,function(){self._afterMoving(direction);});}else{this.e.stop().animate({left:b-nb*this.block.width+'px'},this.opts.speed,function(){self._afterMoving(direction);});}},_afterMoving:function(direction){var self=this;this.current=this.current+(direction=='prev'?-1:1)*(this.dep==-1?this.opts.scroll:this.dep);if(this.current==-1){this.current=this.nbItems-1;}else if(this.current==this.nbItems){this.current=0;}else{this.current=this._realpos(this.current);}if(this.legend=="always"){$('div#'+this.id+"_legend").html($(this.opts.mode,this.container).eq(this.realpos(this.current)).attr('title'));}this.dep=-1;this.locked=false;var effect=this.opts.effects.split(' ');for(var i=0;i<effect.length;i++){if($.isFunction(this.effects.after[effect[i]]))this.effects.after[effect[i]](this);}for(var i=0;i<this.opts.callbacks.length;i++){this.opts.callbacks[i](this);}if(this.opts.auto){this.timerMoving=setTimeout(function(){self._animate('next');},this.opts.dispTimeout);}},_realpos:function(i){return(i<(this.nbItems/2)?i:(i-(this.nbItems/2)));},start:function(){this.locked=false;this.opts.auto=true;this._animate('next');return false;},stop:function(){clearTimeout(this.timerMoving);this.opts.auto=false;return false;},next:function(){this._animate('next');return false;},prev:function(){this._animate('prev');return false;},getCurrent:function(){return this._realpos(this.current);},moveTo:function(i){if(i>(this.nbItems/2)){i=(this.nbItems/2)-1;}this.dep=parseInt(i)-parseInt(this.current);if(this.dep<0){this.dep=(this.nbItems/2)+parseInt(this.dep);}if(this.dep!=0){this._animate('next');}return false;}});$.fn.carrousel.defaults={auto:true,controls:'button',effects:'',continuous:true,speed:2000,direction:'right',scroll:1,dispTimeout:1000,stopOver:true,dispNumber:3,legend:'',align:'left',mode:'img',htmlPrevButton:"prev",htmlNextButton:"next",callbacks:[],api:false};$.fn.carrousel.controls={button:function(carrousel){$("a#"+carrousel.id+'_prev').show();$("a#"+carrousel.id+"_next").show();}};$.fn.carrousel.effects={init:{},before:{},after:{}};});