/**
 * jQuery lightBox plugin
 * This jQuery plugin was inspired and based on Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
 * and adapted to me for use like a plugin from jQuery.
 * @name jquery-lightbox-0.5.js
 * @author Leandro Vieira Pinho - http://leandrovieira.com
 * @version 0.5
 * @date April 11, 2008
 * @category jQuery plugin
 * @copyright (c) 2008 Leandro Vieira Pinho (leandrovieira.com)
 * @license CC Attribution-No Derivative Works 2.5 Brazil - http://creativecommons.org/licenses/by-nd/2.5/br/deed.en_US
 * @example Visit http://leandrovieira.com/projects/jquery/lightbox/ for more informations about this jQuery plugin
 */
(function($){
	$.fn.lightBox=function(settings){
		settings=jQuery.extend(
		{
		  overlayBgColor:'#000',
		  overlayOpacity:0.8,
		  fixedNavigation:false,
		  imageLoading:'images/lightbox/lightbox-ico-loading.gif',
		  imageBtnPrev:'images/lightbox/lightbox-nav-btn-prevNew.gif',
		  imageBtnNext:'images/lightbox/lightbox-nav-btn-nextNew.gif',
		  imageBtnClose:'images/lightbox/lightbox-btn-close.gif',
		  imageBlank:'images/lightbox/lightbox-blank.gif',
		  containerBorderSize:10,
		  containerResizeSpeed:400,
		  txtImage:'Bild',
		  txtOf:'von',
		  keyToClose:'c',
		  keyToPrev:'p',
		  keyToNext:'n',
		  imageArray:[],
		  activeImage:0
		 },settings);
		var jQueryMatchedObj=this;
		function _initialize(){
			_start(this,jQueryMatchedObj);
			return false;
		}
		function _start(objClicked,jQueryMatchedObj){
			
			$('embed, object, select').css({'visibility':'hidden'});
			
			_set_interface();
			settings.imageArray.length=0;
			settings.activeImage=0;
			
			if(jQueryMatchedObj.length==1){
				settings.imageArray.push(
						new Array(objClicked.getAttribute('href'),objClicked.getAttribute('title'))
						);
			}else{
				for(var i=0;i<jQueryMatchedObj.length;i++){
					settings.imageArray.push(
							new Array(jQueryMatchedObj[i].getAttribute('href'),jQueryMatchedObj[i].getAttribute('title'))
							);
					
				}
				
			}
			while(settings.imageArray[settings.activeImage][0]!=objClicked.getAttribute('href')){
				settings.activeImage++;
			}
			_set_navigation();
			_set_image_to_view();
		}
		function _set_interface(){
			$('body').append('<div id="jquery-overlay">&nbsp;</div>'
					+'<div id="jquery-lightbox">'
					+'<div id="lightbox-general-container">'
					+'<div id="lightbox-container-image-box">'
					+'<div id="lightbox-container-image">'
					+'<img id="lightbox-image">'
					+'<div id="lightbox-loading">'
					+'<a href="#" id="lightbox-loading-link">'
					+'<img src="'+settings.imageLoading+'"></a>'
					+'</div>'
					+'</div>'
					+'<div style="" id="lightbox-nav">'
					+'<a href="#" id="lightbox-nav-btnPrev">&nbsp;</a>'
					+'<div id="lightbox-nav-slide"></div>'
					+'<a href="#" id="lightbox-nav-btnNext">&nbsp;</a>'
					+'</div>'
					+'</div>'
					+'<div id="lightbox-container-image-data-box">'
					+'<div id="lightbox-container-image-data">'
					+'<div id="lightbox-image-details">'
					+'<span id="lightbox-image-details-caption"></span>'
					+' | <span id="lightbox-image-details-currentNumber"></span>'
					+'</div>'
					+'<div id="lightbox-secNav">'
					+'<a href="#" id="lightbox-secNav-btnClose">'
					+'<img src="'+settings.imageBtnClose+'"></a>'
					+'</div>'
					+'</div>'
					+'</div>'
					+'</div>'
					+'</div>');
//			$('#jquery-overlay').css('top',($('#middle').css('padding-top')));
			
			var arrPageSizes=___getPageSize();
			$('#jquery-overlay').css(
					{
						backgroundColor:settings.overlayBgColor,
						opacity:settings.overlayOpacity/*,
						width:arrPageSizes[0],
						height:arrPageSizes[1]*/
					}).fadeIn();
			
			var arrPageScroll=___getPageScroll();
			
			$('#jquery-lightbox').css(
					{top:arrPageScroll[1]+(arrPageSizes[3]/10),
						left:arrPageScroll[0]
					}).show();
			$('#jquery-overlay,#jquery-lightbox').click(function(){_finish();});
			$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(
					function(){_finish();return false;
					});
			$(window).resize(
					function(){
						var arrPageSizes=___getPageSize();
						$('#jquery-overlay').css({width:arrPageSizes[0],height:arrPageSizes[1]
					});
						
			var arrPageScroll=___getPageScroll();
			$('#jquery-lightbox').css(
					{
						top:arrPageScroll[1]+(arrPageSizes[3]/10),
						left:arrPageScroll[0]
					});
			});
		}
		
		function _set_image_to_view(){
		
			$('#lightbox-loading').fadeIn('fast');
		
		if(settings.fixedNavigation){
			$('#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
		}else{
			$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
		}
		
		var objImagePreloader=new Image();		
		objImagePreloader.onload=function(){
			$('#lightbox-image').attr('src',settings.imageArray[settings.activeImage][0]);
		    _resize_container_image_box(objImagePreloader.width,objImagePreloader.height);
		   objImagePreloader.onload=function(){};
		};

		objImagePreloader.src=settings.imageArray[settings.activeImage][0];
		};
		
		
		function _resize_container_image_box(intImageWidth,intImageHeight){
			var intCurrentWidth=$('#lightbox-container-image-box').width();
			var intCurrentHeight=$('#lightbox-container-image-box').height();
			var intWidth=(intImageWidth+ $('#lightbox-nav').width()+(settings.containerBorderSize*2));
			var intHeight=(intImageHeight+(settings.containerBorderSize*2));
			var intDiffW=intCurrentWidth-intWidth;
			var intDiffH=intCurrentHeight-intHeight;
			
			
			$('#lightbox-container-image-box').animate(
					{
						width:intWidth,
						height:intHeight
					},
					settings.containerResizeSpeed,
					function(){_show_image();}
			 );
			
			if((intDiffW==0)&&(intDiffH==0)){
				if($.browser.msie){___pause(250);}
				else{___pause(100);}
			}
			$('#lightbox-container-image-data-box').css({width:intWidth});
			$('#lightbox-nav').css({height:intImageHeight});
			/*$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({height:intImageHeight+(settings.containerBorderSize*2)});*/
		};
		function _show_image(){$('#lightbox-loading').hide();
		$('#lightbox-image').fadeIn(function(){_show_image_data();_show_nav();});
		//_preload_neighbor_images();
		};
		
		function _show_image_data(){$('#lightbox-container-image-data-box').slideDown('fast');
		$('#lightbox-image-details-caption').hide();
		if(settings.imageArray[settings.activeImage][1]){
			$('#lightbox-image-details-caption').html(settings.imageArray[settings.activeImage][1]).show();
		}

		if(settings.imageArray.length>0){
		$('#lightbox-image-details-currentNumber').html(settings.txtImage+' '+(settings.activeImage+1)+' '+settings.txtOf+' '+settings.imageArray.length).show();
		}
		}
		function _preload_neighbor_images(){
			if((settings.imageArray.length-1)>settings.activeImage){
				objNext=new Image();objNext.src=settings.imageArray[settings.activeImage+1][0];
			}
			if(settings.activeImage>0){objPrev=new Image();objPrev.src=settings.imageArray[settings.activeImage-1][0];
			}
		}
		
		function _set_navigation(){		
		
		// setup sliding buttons
		//fill nav			
		var thumbs=$("#gallery  li>div>a img");
		var images=$("#gallery .panel a img");
		
		for(var i=0;i<thumbs.length;i++){		
			$('#lightbox-nav #lightbox-nav-slide').append('<a href="'+images[i].getAttribute("src")+'" ><img src="'+thumbs[i].getAttribute("src")+'"></a>');		
			$('#lightbox-nav #lightbox-nav-slide a').eq(i).bind('click', {index:i}, function(e){

// Bugbehebung AM 28.1.2010: war eine Endlosschleife, falls a den Bild href's noch parameter dranhängten, z.B. Session-SID             
                settings.activeImage=e.data.index;
/*alert(settings.imageArray[settings.activeImage][0]);
alert(this.getAttribute('href'));
				while(settings.imageArray[settings.activeImage][0]!=this.getAttribute('href')){
					settings.activeImage++;
				}*/
				_set_image_to_view();
				
				return false;});	
		
		}
				
		
		//simple sliding function  ->dirty solution!!
			var slide;
			function do_sliding(direction){
				var elem=$("#lightbox-nav #lightbox-nav-slide");
				slide=setInterval(function (){	
					switch(direction){
					case 'top':
					 
					 if(elem.position().top <= -8){
						
						 elem.animate({top: "+=25px"}, 7);
						
					 
					 }
					 else{
						clearInterval(slide);
						//$('#lightbox-nav-btnPrev').css({backgroundColor:'transparent'});
					 }				
					break;
					case 'bottom':
					 var diff=elem.height()-$("#lightbox-nav").height();
					 if(elem.position().top > -(diff))
					   elem.animate({top: "-=20px"}, 7);					   
					 else{
						clearInterval(slide);
						//$('#lightbox-nav-btnNext').css({backgroundColor:'transparent'});
					}
					break;
				}
				}, 15);
			}
			function stop_sliding(elem, fin){
				clearInterval(slide);
			}
		//bind sliding	
		//markup sliding buttons		
		$('#lightbox-nav-btnPrev').css( {'background':'url('+settings.imageBtnPrev+') center bottom no-repeat'}).mouseenter(
				function(){
					$(this).css( {height: "20px", opacity:"0.9" });
					do_sliding('top');
					}).mouseleave(
				function(){
						$(this).css({height: "5px", opacity:"0.7"});
						stop_sliding();
					}
				);
		$('#lightbox-nav-btnNext').css( {'background':'url('+settings.imageBtnNext+') center top no-repeat'}).mouseenter(
				function(){
				$(this).css( {height: "20px", opacity:"0.9" });
				do_sliding('bottom');
				}).mouseleave(
				function(){
				$(this).css({height: "5px", opacity:"0.7"});
				stop_sliding();
				}
				);
			/*
			if(settings.fixedNavigation){
				$('#lightbox-nav-btnPrev').css({'background':'url('+settings.imageBtnPrev+') left 15% no-repeat'}).unbind().bind('click',function(){settings.activeImage=settings.activeImage-1;_set_image_to_view();return false;});
			}else{
				$('#lightbox-nav-btnPrev').unbind().hover(function(){$(this).css({'background':'url('+settings.imageBtnPrev+') left 15% no-repeat'});
					},function(){$(this).css({'background':'transparent url('+settings.imageBlank+') no-repeat'});}).show().bind('click',function(){settings.activeImage=settings.activeImage-1;_set_image_to_view();
					return false;
					});
			}*/
		
			/*if(settings.fixedNavigation){
					$('#lightbox-nav-btnNext').css({'background':'url('+settings.imageBtnNext+') right 15% no-repeat'}).unbind().bind('click',function(){settings.activeImage=settings.activeImage+1;_set_image_to_view();return false;});
					}else{
						$('#lightbox-nav-btnNext').unbind().hover(function(){$(this).css({'background':'url('+settings.imageBtnNext+') right 15% no-repeat'});},function(){$(this).css({'background':'transparent url('+settings.imageBlank+') no-repeat'});}).show().bind('click',function(){settings.activeImage=settings.activeImage+1;_set_image_to_view();return false;});}
			*/
		
		//---------------------------------------------------------------------------------------------
		
		_enable_keyboard_navigation();
		
			
		_show_nav();
		}
		
		function _show_nav(){
			$('#lightbox-nav').slideDown('fast');			
			$('#lightbox-nav-btnPrev').show();
			$('#lightbox-nav-btnNext').show();
		}
		
		function _enable_keyboard_navigation(){$(document).keydown(function(objEvent){_keyboard_action(objEvent);});}

		function _disable_keyboard_navigation(){$(document).unbind();}

		function _keyboard_action(objEvent){
			if(objEvent==null){keycode=event.keyCode;escapeKey=27;}
			else{
				keycode=objEvent.keyCode;
				escapeKey=objEvent.DOM_VK_ESCAPE;
				}

			key=String.fromCharCode(keycode).toLowerCase();
			if((key==settings.keyToClose)||(key=='x')||(keycode==escapeKey)){_finish();}
			if((key==settings.keyToPrev)||(keycode==37)){
				if(settings.activeImage!=0){
					settings.activeImage=settings.activeImage-1;
					_set_image_to_view();
					_disable_keyboard_navigation();
				}
			}
			if((key==settings.keyToNext)||(keycode==39)){
				if(settings.activeImage!=(settings.imageArray.length-1)){
		    settings.activeImage=settings.activeImage+1;_set_image_to_view();
		    _disable_keyboard_navigation();
				}
			}
		}
		
		function _finish(){
			$('#jquery-lightbox').remove();
			$('#jquery-overlay').fadeOut(function(){
				$('#jquery-overlay').remove();});
			$('embed, object, select').css({'visibility':'visible'});
		}
		function ___getPageSize(){
			var xScroll,yScroll;
			if(window.innerHeight&&window.scrollMaxY){
				xScroll=window.innerWidth+window.scrollMaxX;yScroll=window.innerHeight+window.scrollMaxY;
			}
			else if(document.body.scrollHeight>document.body.offsetHeight){
				xScroll=document.body.scrollWidth;yScroll=document.body.scrollHeight;
			}
			else{
				xScroll=document.body.offsetWidth;yScroll=document.body.offsetHeight;
			}
			var windowWidth,windowHeight;
			if(self.innerHeight){
				if(document.documentElement.clientWidth){windowWidth=document.documentElement.clientWidth;}
				else{windowWidth=self.innerWidth;
				}
				windowHeight=self.innerHeight;
			}else if(document.documentElement&&document.documentElement.clientHeight){
				windowWidth=document.documentElement.clientWidth;windowHeight=document.documentElement.clientHeight;}
			else if(document.body){windowWidth=document.body.clientWidth;windowHeight=document.body.clientHeight;}
			if(yScroll<windowHeight){pageHeight=windowHeight;}else{pageHeight=yScroll;}
			if(xScroll<windowWidth){pageWidth=xScroll;}else{pageWidth=windowWidth;}
			arrayPageSize=new Array(pageWidth,pageHeight,windowWidth,windowHeight);
			return arrayPageSize;
		};
		function ___getPageScroll(){
			var xScroll,yScroll;
			if(self.pageYOffset){
				yScroll=self.pageYOffset;
				xScroll=self.pageXOffset;
			}else if(document.documentElement&&document.documentElement.scrollTop){
			yScroll=document.documentElement.scrollTop;
			xScroll=document.documentElement.scrollLeft;
			}else if(document.body){
				yScroll=document.body.scrollTop;xScroll=document.body.scrollLeft;
			}
			arrayPageScroll=new Array(xScroll,yScroll);
			return arrayPageScroll;
		};
		function ___pause(ms){
			var date=new Date();
			curDate=null;do{var curDate=new Date();
		}
		while(curDate-date<ms);
		};
		
		return this.unbind('click').click(_initialize);
		};
		})(jQuery);