function addShowcase(sc)
{
	if (sc){
		v5.showcaseList.push(sc);
	}
}

function removeShowcase(sc)
{
	for (i = 0; i < v5.showcaseList.length; i++){
		if (v5.showcaseList[i] == sc){
			if (typeof(v5.showcaseList[i].stopAutoRotate) == 'function') {
				v5.showcaseList[i].stopAutoRotate();
			}
			v5.showcaseList.splice(i, 1);
			break;
		}
	}
}

function removeAllShowcases()
{
	removeAllShowcaseIntervals();
	v5.showcaseList.splice(0);
	v5.showcaseList.length = 0;
}

function addShowcaseInterval(intv, playFunc)
{
	v5.showcaseIntervals.push(intv);
	v5.showcasePlayFunctions.push(playFunc);
}

function removeShowcaseInterval(intv, keepPlay)
{
	for (i = 0; i < v5.showcaseIntervals.length; i++){
		if (v5.showcaseIntervals[i] == intv){
			v5.showcaseIntervals.splice(i, 1);
			v5.showcasePlayFunctions.splice(i, 1);
			break;
		}
	}
	clearInterval(intv);
}

function removeAllShowcaseIntervals()
{
	for (i = 0; i < v5.showcaseIntervals.length; i++){
		clearInterval(v5.showcaseIntervals[i]);
	}
	v5.showcaseIntervals.length = 0;
	//alert('showcase intervals cleared');
}

function removeAllPlayFunctions()
{
	v5.showcasePlayFunctions.length = 0;
}

function stopAllShowcases()
{
	removeAllShowcaseIntervals();
	/*
	for (i = 0; i < v5.showcaseList.length; i++){
		v5.showcaseList[i].sliderShowcase.showcaseWrapper.stopAutoRotate();
		
	}
	*/
}

function startAllShowcases()
{
	for (i = 0; i < v5.showcasePlayFunctions.length; i++){
		if (typeof(v5.showcasePlayFunctions[i]) == 'function'){	
			interval = v5.showcasePlayFunctions[i]();
			setTimeout(function() { addShowcaseInterval(interval, v5.showcasePlayFunctions[i]); }, 0);
		}
	}
}

(function($)
{
	$.fn.sliderShowcase = function(options) 
	{
		var defaults = 
		{
			slides: '>div',				
			animationSpeed: 900,		
			autorotation: true,			
			autorotationSpeed:3,		
			appendControls: '',		
			slideControls: 'none',		
			blockSize: {height: 'full', width:'full'},
			betweenBlockDelay:15,
			display: 'topleft',
			switchMovement: false,
			showText: true,	
			transition: 'slide',		
			fontOpacity: 1.0,
			backgroundOpacity:0.8,		
			transitionOrder: new Array('diagonaltop', 'diagonalbottom','topleft', 'bottomright', 'random')
		};
		
		var options = $.extend(defaults, options);
		
		return this.each(function()
		{
			$(this).bind('contextmenu',function(e){	
				return noEvent(e);
			});
			
			var slideWrapper 	= $(this),								
				slides			= slideWrapper.find(options.slides),	
				slideImages		= slides.find('>a>img'),				
				slideCount 	= slides.length,							
				slideWidth = slides.width(),							
				slideHeight= slides.height(),							
				blockNumber = 0,										
				currentSlideNumber = 0,									
				reverseSwitch = false,									
				currentTransition = 0,									
				current_class = 'active_item',							
				controls = '',											
				skipSwitch = true,										
				interval ='',
				blockOrder = new Array();										
			
			if (options.blockSize.height == 'full') options.blockSize.height = slideHeight;
			if (options.blockSize.width == 'full') options.blockSize.width = slideWidth;
			
			//alert(options.blockSize.width+' '+options.blockSize.height);
			
			if(options.showText){
				
			}
			excerptWrapper = slideWrapper.find('.feature_excerpt').css('opacity',options.backgroundOpacity);
			slides.find('.feature_excerpt').css({display:'block', 'opacity':options.backgroundOpacity});
			
			function getAlpha(rgb, opacity){
				var rgba = '';
				if (rgb && rgb.indexOf('rgb(') != -1){
					var tmp = rgb.replace('rgb(', '').replace(')', '');
					rgba = 'rgba('+tmp+', '+opacity+')';
					return rgba;
				}
				return rgb;
			}
				
			slideWrapper.methods = {
			
				init: function()
				{	
					var posX = 0,
						posY = 0,
						generateBlocks = true,
						bgOffset = '',
						blockSelectionJQ ='',
						blockSelection ='';
						
					while(generateBlocks)
					{
						blockNumber ++;
						bgOffset = "-"+posX +"px -"+posY+"px";
						
						$('<div class="kBlock"></div>').appendTo(slideWrapper).css({	
								zIndex:20, 
								position:'absolute',
								display:'none',
								left:posX,
								top:posY,
								height:options.blockSize.height,
								width:options.blockSize.width,
								backgroundPosition:bgOffset
							});
				
						
						posX += options.blockSize.width;
						
						if(posX >= slideWidth)
						{
							posX = 0;
							posY += options.blockSize.height;
						}
						
						if(posY >= slideHeight)
						{	
							generateBlocks = false;
						}
					}
					
					blockSelection = slideWrapper.find('.kBlock');
					blockOrder['topleft'] = blockSelection;
					blockOrder['bottomright'] = $(blockSelection.get().reverse());
					blockOrder['diagonaltop'] = slideWrapper.methods.kcubit(blockSelection);
					blockOrder['diagonalbottom'] = slideWrapper.methods.kcubit(blockOrder['bottomright']);
					blockOrder['random'] = slideWrapper.methods.fyrandomize(blockSelection);
					
					
					slides.each(function()
					{
						$.data(this, "data", { img: $(this).find('img').attr('src')});
					});
			
					if(slideCount <= 1)
						{
							slideWrapper.imagePreloader({delay:200});
						}
						else
						{
							slideWrapper.imagePreloader({callback:slideWrapper.methods.preloadingDone, delay:200});
							slideWrapper.methods.appendControls();
						}	
				},
				
				appendControls: function()
				{
					if (options.slideControls != 'none' && options.slideControls.length)
					{
						controls = $('<div></div>').addClass('slidecontrols').css({position:'absolute'}).appendTo(options.appendControls);
						
						slides.each(function(i)
						{	
							var controller = $('<a href="#" class="ie6fix showcase_control '+current_class+'">'+(i+1)+'</a>').appendTo(controls);
							controller.bind('click', {currentSlideNumber: i}, slideWrapper.methods.switchSlide);
							current_class = "";
						});	
					}
				},
				
				preloadingDone: function()
				{	
					skipSwitch = false;
					
					slides.css({'backgroundColor':'transparent','backgroundImage':'none'});
					
					if(options.autorotation && !$.browser.opera) 
					{
						slideWrapper.methods.startAutoRotate();
					}
				},
				
				autorotate: function()
				{	
					interval = setInterval(function()
					{ 	
						currentSlideNumber ++;
						
						if(currentSlideNumber == slideCount) currentSlideNumber = 0;
						
						slideWrapper.methods.switchSlide();
					},
					(parseInt(options.autorotationSpeed) * 1000) + (options.betweenBlockDelay * blockNumber) + options.animationSpeed);
					return interval;
				},
				
				startAutoRotate: function()
				{
					if(options.autorotation && !$.browser.opera) 
					{
						interval = slideWrapper.methods.autorotate();
						addShowcaseInterval(interval, slideWrapper.methods.autorotate);
						slideImages.bind("click", function(){ slideWrapper.methods.stopAutoRotate(); });
					}
				},
				
				stopAutoRotate: function()
				{
					if (interval){
						removeShowcaseInterval(interval);
						
						interval = null;
					}
				},
				
				switchSlide: function(passed)
				{
					var noAction = false;
						
					if(passed != undefined && !skipSwitch)
					{	
						if(currentSlideNumber != passed.data.currentSlideNumber)
						{	
							currentSlideNumber = passed.data.currentSlideNumber;
						}
						else
						{
							noAction = true;
						}
					}
						
					if(passed != undefined) clearInterval(interval);
					
					var nextSlide = slides.filter(':eq('+currentSlideNumber+')');
					if ($.data(nextSlide[0], "data") == null){
						clearInterval(interval);
						noAction = true;
					}
					
					if(!skipSwitch && noAction == false)
					{	
						skipSwitch = true;
						var currentSlide = slides.filter(':visible'),
							nextSlide = slides.filter(':eq('+currentSlideNumber+')'),
							nextURL = $.data(nextSlide[0], "data").img,	
							nextImageBG = 'url('+nextURL+')';	
							if(options.appendControls && controls)
							{	
								controls.find('.active_item').removeClass('active_item');
								controls.find('a:eq('+currentSlideNumber+')').addClass('active_item');									
							}

						blockSelectionJQ = blockOrder[options.display];
						
						
						slides.find('>a>img').css({opacity:1,visibility:'visible'});
						slides.find('>a>img').each(function() { cleanupIEFade(this); });
							
						
						if(options.switchMovement && (options.display == "topleft" || options.display == "diagonaltop"))
						{
								if(reverseSwitch == false)
								{	
									blockSelectionJQ = blockOrder[options.display];
									reverseSwitch = true;							
								}
								else
								{	
									if(options.display == "topleft") blockSelectionJQ = blockOrder['bottomright'];
									if(options.display == "diagonaltop") blockSelectionJQ = blockOrder['diagonalbottom'];
									reverseSwitch = false;							
								}
						}	
						
						if(options.display == 'random')
						{
							blockSelectionJQ = slideWrapper.methods.fyrandomize(blockSelection);
						}

						if(options.display == 'all')
						{
							blockSelectionJQ = blockOrder[options.transitionOrder[currentTransition]];
							currentTransition ++;
							if(currentTransition >=  options.transitionOrder.length) currentTransition = 0;
						}
						

				
						blockSelectionJQ.css({backgroundImage: nextImageBG}).each(function(i)
						{	
							
							var currentBlock = $(this);
							setTimeout(function()
							{	
								var transitionObject = new Array();
								if(options.transition == 'slide')
								{
									transitionObject['css'] = {height:1, width:1, display:'block',opacity:0};
									transitionObject['anim'] = {height:options.blockSize.height,width:options.blockSize.width,opacity:1};
								}
								else
								{
									transitionObject['css'] = {display:'block',opacity:0};
									transitionObject['anim'] = {opacity:1};
								}
							
								currentBlock.css(transitionObject['css']).animate(transitionObject['anim'],options.animationSpeed, function()
								{ 
									if(i+1 == blockNumber)
									{	
										slideWrapper.methods.changeImage(currentSlide, nextSlide);
									}
								});
							}, i*options.betweenBlockDelay);
						});
						
					} 
					
					return false;
				},
				
				changeImage: function(currentSlide, nextSlide)
				{	
					currentSlide.css({zIndex:0, display:'none'});
					nextSlide.css({zIndex:3, display:'block'});
					blockSelectionJQ.fadeOut(options.animationSpeed*1/3, function(){ skipSwitch = false; });
				},
				
				
				fyrandomize: function(object) 
				{	
					var length = object.length,
						objectSorted = $(object);
						
					if ( length == 0 ) return false;
					
					while ( --length ) 
					{
						var newObject = Math.floor( Math.random() * ( length + 1 ) ),
							temp1 = objectSorted[length],
							temp2 = objectSorted[newObject];
						objectSorted[length] = temp2;
						objectSorted[newObject] = temp1;
					}
					return objectSorted;
				},
				
				kcubit: function(object)
				{
					var length = object.length, 
						objectSorted = $(object),	
						currentIndex = 0;		
						rows = Math.ceil(slideHeight / options.blockSize.height),
						columns = Math.ceil(slideWidth / options.blockSize.width),
						oneColumn = blockNumber/columns,
						oneRow = blockNumber/rows,
						modX = 0,
						modY = 0,
						rowend = 0,
						endreached = false,
						onlyOne = false; 
					
					if ( length == 0 ) return false;
					for (i = 0; i<length; i++ ) 
					{
						objectSorted[i] = object[currentIndex];
						
						if((currentIndex % oneRow == 0 && blockNumber - i > oneRow)|| (modY + 1) % oneColumn == 0)
						{						
							currentIndex -= (((oneRow - 1) * modY) - 1); modY = 0; modX ++; onlyOne = false;
							
							if (rowend > 0)
							{
								modY = rowend; currentIndex += (oneRow -1) * modY;
							}
						}
						else
						{
							currentIndex += oneRow -1; modY ++;
						}
						
						if((modX % (oneRow-1) == 0 && modX != 0 && rowend == 0) || (endreached == true && onlyOne == false) )
						{	
							modX = 0.1; rowend ++; endreached = true; onlyOne = true;
						}	
					}
					
				return objectSorted;						
				}
				
			};	
			
			slideWrapper.methods.init();	
		});
	}
})(jQuery);