/**
* jQuery jqGalScroll Plugin
* Examples and documentation at: http://benjaminsterling.com/jquery-jqgalscroll-photo-gallery/
*
* @author: Benjamin Sterling
* @version: 2.1
* @copyright (c) 2007 Benjamin Sterling, KenzoMedia
* @extendThanks Koesmanto Bong http://www.koesbong.com/
*		Koes put a fire under my butt to improve this plugin
*		and when I took too long he took what I had and added
*		the horizontal scroll and in turn I ripped it from his
*		hands and made it better :)
*
* Dual licensed under the MIT and GPL licenses:
*   http://www.opensource.org/licenses/mit-license.php
*   http://www.gnu.org/licenses/gpl.html
*   
* @requires jQuery v1.2.1 or later
* @optional jQuery Easing v1.2
*
* @name jqGalScroll
* @example $('ul').jqGalScroll();
* 
* @Semantic requirements:
* 				The structure fairly simple; the structure should consist
* 				of a ul > li > img structure.
* 
* 	<ul>
*		<li><img src="common/img/dsc_0003.thumbnail.JPG"/></li>
*		<li><img src="common/img/dsc_0012.thumbnail.JPG"/></li>
*	</ul>
*
* @param String ease
*					refer to http://gsgd.co.uk/sandbox/jquery.easing.php for values
* 
* @example $('#gallery').jqGalScroll({speed:1000});

* @param String speed
* 					fast, slow, 1000, ext..
* 
* @example $('#gallery').jqGalScroll({speed:1000});
* 
* @param String height
* 					the default height of your wrapper
* 
* @example $('#gallery').jqGalScroll({height:490});
* 
* @param String titleOpacity
* 					the opacity of your title bar (if present)
* 
* @example $('#gallery').jqGalScroll({titleOpacity:.70});
* 
* @param String direction 
*					vertical horizontal diagonal
* 
* @example $('#gallery').jqGalScroll({direction:'vertical'});
* 			
*/
(function($) {
	$.fn.jqGalScroll = function(options){
		return this.each(function(i){
			var el = this
			el.curImage = 0;
			el.jqthis = $(this).css({position:'relative'});
			el.jqchildren = el.jqthis.children();
			el.opts = $.extend({}, jqGalScroll, options);
			el.index = i;
			el.totalChildren = el.jqchildren.size();
			var width,height;
			
			switch(el.opts.direction){
				case 'horizontal':
					width = el.totalChildren *el.opts.width;
					height = el.opts.height;
					break;
				case 'vertical':
					width = el.opts.width;
					height = el.totalChildren *el.opts.height;
					break;
				default:
					width = el.totalChildren *el.opts.width;
					height = el.totalChildren *el.opts.height;
					break;
			}; 
			
			
			
			
			el.container = $('<div id="jqGS'+i+'" class="jqGSContainer">').css({position:'relative'});
			el.ImgContainer = $('<div class="jqGSImgContainer" style="height:'+el.opts.height+'px;position:relative;overflow:hidden">')
								.css({height:el.opts.height,width:el.opts.width,position:'relative',overflow:'hidden'});
			el.jqthis.css({height:height,width:width});
			
			el.jqthis.wrap(el.container);
			el.jqthis.wrap(el.ImgContainer);
			el.pagination = $('<div class="jqGSPagination">');
			el.jqthis.parent().parent().append(el.pagination);
			var jqul = $('<ul>').appendTo(el.pagination);
			var pos = {x:0,y:0};
			
			el.jqchildren.each(function(j){
				var selected = '';
				if(j == 0) selected = 'selected';
				
				var $a = $('<a href="#'+(j)+'" class="'+selected+'"></a>').click(function(){
					var href = this.index;//href.replace(/^.*#/, '');
					el.pagination.find('.selected').removeClass('selected');
					$(this).addClass('selected');
					var params = {};
					if( el.opts.direction == 'diagonal'){
						params = {right:(el.opts.width*href),bottom:(el.opts.height*href)}
					}
					else if( el.opts.direction == 'vertical'){
						params = {bottom:(el.opts.height*href)}
					}
					else if( el.opts.direction == 'horizontal'){
						params = {right:(el.opts.width*href)}
					};
					
					el.jqthis.stop().animate(params,el.opts.speed, el.opts.ease);
					index = href;
					clearTimeout(autoPlay);
					autoPlay = setTimeout(nextSlide, el.opts.autoplayDelay);
					return false;
				});

				var n = $a.get(0);

				n.index = j;

				$('<li>').appendTo(jqul).append($a);

				if( el.opts.direction == 'diagonal'){
					pos.x = j * el.opts.width;
					pos.y = j * el.opts.height;
				}
				else if( el.opts.direction == 'horizontal'){
					pos.x = j * el.opts.width;
				}
				else if( el.opts.direction == 'vertical'){
					pos.y = j * el.opts.height;
				};

				var jqchild = $(this).css({height:el.opts.height,width:el.opts.width,position:'absolute',left:pos.x, top:pos.y});

				var jqimg = jqchild.find('img').hide()
				
				if(jqimg.parent().is('a')){
					var p = jqimg.parent();
					jqimg.get(0).linkHref = p.attr('href');
					p.remove();
					jqimg.appendTo(jqchild);
				};

				jqimg.click(function(){
					var next = n.index + 1;
					if((n.index + 1) == el.totalChildren ){
						el.pagination.find('[href$=#0]').click();
					}
					else{
						el.pagination.find('[href$=#'+next+']').click();
					}
				});

				var $loader = $('<div class="jqGSLoader">').appendTo(jqchild);
				var $titleHolder = $('<div class="jqGSTitle">').appendTo(jqchild).css({opacity:el.opts.titleOpacity}).hide();
				var image = new Image();
				image.onload = function(){
					image.onload = null;
					$loader.fadeOut();
					jqimg.css({marginLeft:-image.width*.5,marginTop:-image.height*.5,position:'absolute',left:'50%',top:'50%'}).fadeIn();
					var alt = jqimg.attr('alt');
					if(typeof alt != 'undefined'){
						$titleHolder.text(alt).fadeIn();
					}
				};
				image.src = jqimg.attr('src');
			});


function nextSlide(){
	if(el.pagination.find('.selected').parent().next().children('a').size()){
		el.pagination.find('.selected').parent().next().children('a').click();
	}
	else{
		el.pagination.find('li:eq(0)').children('a').click();
	}
}

autoPlay = setTimeout(nextSlide, el.opts.autoplayDelay);

	}); // end : this.each(function()
};  // end : $.fn.jqGalScroll
	jqGalScroll = {
		ease: null,
		speed:500,
		height: 279,
		width: 1379,
		titleOpacity : .60,
		direction : 'horizontal', // vertical horizontal diagonal
		autoplayDelay: 5000
	};
})(jQuery);