/**
 *
 *	Rotator								( 2010-10-01 ) 
 *
 *	Vstupni objekt:
 *
 *	config.cover						[HTMLElement] obalovy html element 
 *	config.tagName						[String] jmenu tagu pro vyber elementu 
 *	config.className                    [String] jmeno html tridy k aplikovani na objekty ( divy )
 *	config.simpleLogger					[SimpleLogger] SimpleLogger objekt 
 *	config.infinite						[bool] nekonecne smycka ( pro Prev & Next )
 *	config.fadeEffect					[bool] fade efekt
 *	config.fadeSpeed					[int] rychlost prechodu, 10 .. 10000
 *	config.random    					[bool] pouzivat random pri funkci pri prechodu mezi prvky 
 *	
 *  Metody:
 *	
 *	random								zobrazi random prvek
 *	my       							zobrazi prvek s indexem i
 *	    param i                         index do pole InDivs ( pole rotovanych elementu ) 
 *	next								zobrazi dalsi prvek
 *	prev								zobrazi predchzi prvek 
 *	startAuto							automaticka zmena v danem intervalu
 *		param delay						casova prodleva v milisec.
 *	stopAuto							zastaveni automaticke zmeny
 *	toggleAuto							prepinani mezi start a stop auto.
 *		param delay						casova prodleva v milisec.
 *	
 *  Settery / Gettery:
 *  
 *	isFadeFinished                      [bool] vraci, zda jiz byl fade efekt dokoncen.
 *  setFadeEffect                       nastavi fadeEffect
 *      param val                       [bool] nova hodnota
 *  setFadeSpeed                        nastavi rychlost fadeEffect
 *      param val                       [int] pocet milisekund
 *		
 *  Eventy:                             (pro prepsani, u instance nahradit vlastni funkci)
 *  
 *  onHideStart                         metoda volana pred schovanim elementu
 *      InDivs                          pole rotovanych elementu
 *      Index                           index do prechoziho pole, ukazuje na schovavany element   
 *  onShowStart                         metoda volana pred zobrazenim elementu
 *      InDivs                          pole rotovanych elementu
 *      Index                           index do prechoziho pole, ukazuje na zobrazovany element
 *  onHideFinished                      metoda volana po schovani elementu
 *      InDivs                          pole rotovanych elementu
 *      Index                           index do prechoziho pole, ukazuje na schovavany element   
 *  onShowFinished                      metoda volana po zobrazeni elementu
 *      InDivs                          pole rotovanych elementu
 *      Index                           index do prechoziho pole, ukazuje na zobrazovany element
 *
 */
 
function Rotator(config){if(config==null){throw new Error("Rotator: Neni zadan config objekt!");return}if(config.cover==null){throw new Error("Rotator: Neni zadan obalovy element!");}var This=this;var Config=config;var InDivs=new Array();var Index=0;var Logger=(config.simpleLogger)?config.simpleLogger:(window.console)?console:null;var Cover=config.cover;var TagName=(config.tagName)?config.tagName:"div";var ClassName=(config.className!=null)?config.className:"rotator-item";var Infinite=(config.infinite)?config.infinite:false;var FadeEffect=(config.fadeEffect!=null&&config.fadeEffect==true)?true:false;var FadeSpeed=(config.fadeSpeed!=null&&config.fadeSpeed>=10&&config.fadeSpeed<=10000)?config.fadeSpeed:500;var FadeFinished=true;var Random=config.random;var Timer=null;var CallPrevAfterFade=false;var CallNextAfterFade=false;var CallMyAfterFade=-1;function init(){var inDivs=Cover.getElementsByTagName(TagName);for(var i=0;i<inDivs.length;i++){if((ClassName!="")?(inDivs[i].className.indexOf(ClassName)!=-1):true){InDivs[InDivs.length]=inDivs[i];inDivs[i].style.display="none"}}Logger.info("Length: "+InDivs.length,2);if(Random==false){FadeEffect=false;showEl(0);FadeEffect=Config.fadeEffect}else{This.random()}};this.next=function(){Logger.log("FadeFinished: "+FadeFinished,2);if(FadeFinished){if(CallPrevAfterFade){Logger.log("Post PREV call",2);CallPrevAfterFade=false;This.prev();return}else if(CallNextAfterFade){Logger.log("Post NEXT call",2);CallNextAfterFade=false;This.next();return}else if(CallMyAfterFade!=-1){Logger.log("Post MY call",2);This.my(CallMyAfterFade);CallMyAfterFade=-1;return}else if((Infinite&&InDivs.length==(Index+1))||InDivs.length>(Index+1)){hideEl(Index);if(InDivs.length>(Index+1)){Index++}else{Index=0}showEl(Index)}}else{CallNextAfterFade=true;Logger.log("CallNextAfterFade setuped up",2)}};this.prev=function(){if(FadeFinished){if((Infinite&&Index==0)||Index>0){hideEl(Index);if(Index>0){Index--}else{Index=InDivs.length-1}showEl(Index)}}else{CallPrevAfterFade=true}};this.random=function(){Logger.log("FadeFinished: "+FadeFinished,2);if(FadeFinished){hideEl(Index);do{i=Math.round(Math.random()*(InDivs.length-1))}while(i==Index);Index=i;showEl(Index)}};this.my=function(index){if(index>-1&&index<InDivs.length){Logger.log("FadeFinished: "+FadeFinished,2);if(FadeFinished){hideEl(Index);Index=index;showEl(Index)}else{CallMyAfterFade=index}}};this.toggleAuto=function(delay){if(Timer==null){This.startAuto(delay)}else{This.stopAuto()}};this.startAuto=function(delay){if(Random==false){Timer=window.setInterval(This.next,delay)}else{Timer=window.setInterval(This.random,delay)}};this.stopAuto=function(){window.clearInterval(Timer);Timer=null};this.onHideFinished=function(InDivs,Index){};this.onHideStart=function(InDivs,Index){};this.onShowFinished=function(InDivs,Index){};this.onShowStart=function(InDivs,Index){};function hideEl(index){This.onHideStart(InDivs,Index);Logger.info("Hide Index: "+Index,1);if(FadeEffect){FadeFinished=false;jQuery(InDivs[index]).fadeOut(FadeSpeed,function(){FadeFinished=true;This.onHideFinished(InDivs,Index)})}else{InDivs[index].style.display='none'}};function showEl(index){This.onShowStart(InDivs,Index);Logger.info("Show Index: "+Index,1);if(FadeEffect){FadeFinished=false;jQuery(InDivs[index]).fadeIn(FadeSpeed,function(){FadeFinished=true;This.onShowFinished(InDivs,Index)})}else{InDivs[index].style.display=''}};this.isFadeFinished=function(){return FadeFinished};this.setFadeEffect=function(val){if(val!=null){if(val==true){FadeEffect=true}else if(val==false){FadeEffect=false}else{throw new Error("[ROTATOR]: Incorrect value passed to 'setFadeEffect'!");}}else{throw new Error("[ROTATOR]: Incorrect value passed to 'setFadeEffect'!");}};this.setFadeSpeed=function(val){if(val!=null){if(val>=10&&val<=10000){FadeSpeed=val}else{throw new Error("[ROTATOR]: Incorrect value passed to 'setFadeSpeed'!");}}else{throw new Error("[ROTATOR]: Incorrect value passed to 'setFadeSpeed'!");}};this.addEvent=function(obj,ev,func,b){if(obj.addEventListener){obj.addEventListener(ev,func,b)}else{obj.attachEvent("on"+ev,func)}};this.removeEvent=function(obj,ev,func,b){if(obj.addEventListener){obj.removeEventListener(ev,func,b)}else{obj.detachEvent("on"+ev,func)}};this.stopEvent=function(event){if(navigator.appName!="Microsoft Internet Explorer"){event.stopPropagation();event.preventDefault()}else{event.cancelBubble=true;event.returnValue=false}};init()};