/*  
JAVASCRIPT IMAGE GALLERY W/ mootools
Description: A easy, non destructive javascript image gala.
Version: 1.1
Author: Devin Ross
Author URI: http://tutorialdog.com
*/

/*
Release notes:
	1.1 - Adds loading animation, and properly fades in images when fully loaded
	1.1.1 - Fixes displaying description, Fades out current image, Works with Mootools 1.2
*/


window.addEvent('domready', function() {
		
		
		// CHANGE THIS !!
		var slides = 14;		// NUMBER OF SLIDES IN SLIDESHOW, CHANGE ACCORDINGLY
		var pos = 0;
		var offset = 462;	// HOW MUCH TO SLIDE WITH EACH CLICK
		var currentslide = 1;	// CURRENT SLIDE IS THE FIRST SLIDE
		var inspector = $('fullimg');	// WHERE THE LARGE IMAGES WILL BE PLACE	
		var fx = new Fx.Morph(inspector, {duration: 300, transition: Fx.Transitions.Sine.easeOut});
 		var fx2 = new Fx.Morph(inspector, {duration: 200, transition: Fx.Transitions.Sine.easeOut});
		var imagesAry = new Array();
		var imageCountAry = 0;
		var currentImage = 0;
		var preImage = null;
		
		/* THUMBNAIL IMAGE SCROLL */
		var imgscroll = new Fx.Scroll('wrapper', {
   			offset: {'x': 0, 'y': 0},
   			transition: Fx.Transitions.Cubic.easeOut	// HOW THE SCROLLER SCROLLS
		}).toLeft();

	
		/* EVENTS - WHEN AN ARROW IS CLICKED THE THUMBNAILS SCROLL */
		$('moveleft').addEvent('click', function(event) { event = new Event(event).stop();
			if(currentslide == 1) return;
			currentslide--;					// CURRENT SLIDE IS ONE LESS
			pos += -(offset);				// CHANGE SCROLL POSITION
			imgscroll.start(pos);			// SCROLL TO NEW POSITION
		});
		$('moveright').addEvent('click', function(event) { event = new Event(event).stop();
			if(currentslide >= slides) return;
			currentslide++;
			pos += offset;
			imgscroll.start(pos);
		});
		
		/*Modified By :: Ranjit Das On 15-06-09 */
		$('callleft').addEvent('click', function(item){
			if(currentImage >= 0){
				if(currentImage == 0){
					var imgIs = imagesAry[currentImage];
					
					
					
					fx2.start({ 
						'opacity' : 0													
					}).chain(function(){
						inspector.empty();		// Empty Stage
						var loadimg = 'images/ajax-loader.gif';	   // Reference to load gif
						var load = new Element('img', { 'src': loadimg, 'class': 'loading' }).inject(inspector); 
						fx2.start({ 'opacity' : 1 });
						var largeImage = new Element('img', { 'src': imgIs }); // create large image
							fx.start({ 
								'opacity' : 0													
							}).chain(function(){
								inspector.empty();
								largeImage.inject(inspector); // insert new image
								fx.start({'opacity': 1});	 // then bring opacity of elements back to visible				
							});
					});
					
					
					
				}else{
					currentImage--;
					var imgIs = imagesAry[currentImage];
					
					
					
					fx2.start({ 
						'opacity' : 0													
					}).chain(function(){
						inspector.empty();		// Empty Stage
						var loadimg = 'images/ajax-loader.gif';	   // Reference to load gif
						var load = new Element('img', { 'src': loadimg, 'class': 'loading' }).inject(inspector); 
						fx2.start({ 'opacity' : 1 });
						var largeImage = new Element('img', { 'src': imgIs }); // create large image
							fx.start({ 
								'opacity' : 0													
							}).chain(function(){
								inspector.empty();
								largeImage.inject(inspector); // insert new image
								fx.start({'opacity': 1});	 // then bring opacity of elements back to visible				
							});
					});
					
					
					
				}
			}
			var imgObjIs = document.getElementById('small_glry_img_' + currentImage);
			if(preImage != 'undefined' && preImage != null && preImage != ''){
				preImage.className = "thumb";
			}
			preImage = imgObjIs;
			imgObjIs.className = "thumb imgSelected";
		});
		
		$('callright').addEvent('click', function(item){
			if(currentImage < imagesAry.length){
				if((imagesAry.length - 1) == currentImage){
					var imgIs = imagesAry[currentImage];
					
					
					
					fx2.start({ 
						'opacity' : 0													
					}).chain(function(){
						inspector.empty();		// Empty Stage
						var loadimg = 'images/ajax-loader.gif';	   // Reference to load gif
						var load = new Element('img', { 'src': loadimg, 'class': 'loading' }).inject(inspector); 
						fx2.start({ 'opacity' : 1 });
						var largeImage = new Element('img', { 'src': imgIs }); // create large image
							fx.start({ 
								'opacity' : 0													
							}).chain(function(){
								inspector.empty();
								largeImage.inject(inspector); // insert new image
								fx.start({'opacity': 1});	 // then bring opacity of elements back to visible				
							});
					});
					
					
					
				}else{
					currentImage++;
					var imgIs = imagesAry[currentImage];
					
					
					fx2.start({ 
						'opacity' : 0													
					}).chain(function(){
						inspector.empty();		// Empty Stage
						var loadimg = 'images/ajax-loader.gif';	   // Reference to load gif
						var load = new Element('img', { 'src': loadimg, 'class': 'loading' }).inject(inspector); 
						fx2.start({ 'opacity' : 1 });
						var largeImage = new Element('img', { 'src': imgIs }); // create large image
							fx.start({ 
								'opacity' : 0													
							}).chain(function(){
								inspector.empty();
								largeImage.inject(inspector); // insert new image
								fx.start({'opacity': 1});	 // then bring opacity of elements back to visible				
							});
					});
					
					
					
				}
			}
			var imgObjIs = document.getElementById('small_glry_img_' + currentImage);
			if(preImage != 'undefined' && preImage != null && preImage != ''){
				preImage.className = "thumb";
			}
			preImage = imgObjIs;
			imgObjIs.className = "thumb imgSelected";
		});
		/*Modified By :: Ranjit Das On 15-06-09 */
		
		/* WHEN AN ITEM IS CLICKED, IT INSERTS THE IMAGE INTO THE FULL VIEW DIV */
		$$('.item').each(function(item){ 
			item.addEvent('click', function(e) { 
				e = new Event(e).stop();
				fx2.start({ 
					'opacity' : 0													
				}).chain(function(){
					inspector.empty();		// Empty Stage
					var loadimg = 'images/ajax-loader.gif';	   // Reference to load gif
					var load = new Element('img', { 'src': loadimg, 'class': 'loading' }).inject(inspector); 
					fx2.start({ 'opacity' : 1 });
					var largeImage = new Element('img', { 'src': item.href }); // create large image
					/* When the large image is loaded, fade out, fade in with new image */
					//largeImage.onload = function(){  // While this line of code causes the images to load/transition in smoothly, it cause IE to stop working
						fx.start({ 
							'opacity' : 0													
						}).chain(function(){
							inspector.empty();	           				// empty stage
							var description = item.getElement('span');	// see if there is a description
							
							if(description)					   
								var des = new Element('p').set('text', description.get('text')).inject(inspector);
							largeImage.inject(inspector); // insert new image
							fx.start({'opacity': 1});	 // then bring opacity of elements back to visible				
						});
						/*Modified By :: Ranjit Das On 15-06-09 */
						if(preImage != 'undefined' && preImage != null && preImage != ''){
							preImage.className = "thumb";
						}
						preImage = item.getElement('img');
						preImage.className = "thumb imgSelected";
						currentImage = item.getElement('img').id.replace("small_glry_img_","");
						/*Modified By :: Ranjit Das On 15-06-09 */
					//};
				});
			});
			
			/*Modified By :: Ranjit Das On 15-06-09 */
			item.getElement('img').id = 'small_glry_img_' + imageCountAry;
			imagesAry[imageCountAry++] = item;
			/*Modified By :: Ranjit Das On 15-06-09 */
		});

		// INSERT THE INITAL IMAGE - LIKE ABOVE
		inspector.empty();
		var description = $('first').getElement('span');
		if(description) var desc = new Element('p').setHTML(description.get('html')).inject(inspector);
		var largeImage = new Element('img', {'src': $('first').href}).inject(inspector);
});