/**
 * jQuery jqGalScroll Plugin
 * Modified!
 * Examples and documentation at: http://benjaminsterling.com/jquery-jqgalscroll-photo-gallery/
 *
 * @author: Benjamin Sterling
 * @version: 2.1
 * @version $Id$
 * @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){

	//alert(options.direction);
		
		return this.each(function(i){
			
			var index1 = 0;
			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};

			//hide navigation buttons
			$("#"+el.id+"_button_right_disabled").hide();
			$('#'+el.id+'_button_left').hide();
			$("#"+el.id+"_button_left_disabled").show();
			if (el.totalChildren == 1)
			{
				$('#'+el.id+'_button_right').hide();
				$("#"+el.id+"_button_right_disabled").show();
			}
			el.jqchildren.each(function(j){
				var selected = '';
				if(j == 0) selected = 'selected';

				var $a = $('<a href="#'+(j)+'" class="'+selected+'">'+(j+1)+'</a>').click(function(){
					var href = this.index;//href.replace(/^.*#/, '');
					el.pagination.find('.selected').removeClass('selected');
					$(this).addClass('selected');
					var params = {};

					if( el.opts.direction == 'horizontal'){
						params = {right:(el.opts.width*href)}
						//alert(j);
					};

					el.jqthis.stop().animate(params,el.opts.speed, el.opts.ease);
					index = href;

					return false;
				});

				current = j;

			var n = $a.get(0);
				n.index = j;
				$('<li>').appendTo(jqul).append($a);
				if( el.opts.direction == 'horizontal'){
					pos.x = j * el.opts.width;
				}
				var jqchild = $(this).css({height:el.opts.height,width:el.opts.width,position:'absolute',left:pos.x, top:pos.y});
			});

			var $button_left = $('#'+el.id+'_button_left').click(function(){

					var href = (index1-1);//href.replace(/^.*#/, '');
					el.pagination.find('.selected').removeClass('selected');
					$(this).addClass('selected');
					var params = {};

					if( el.opts.direction == 'horizontal'){
						params = {right:(el.opts.width*href)}
						//alert(j);
					};

					el.jqthis.stop().animate(params,el.opts.speed, el.opts.ease);
					index1 = href;
					
					if (index1 < el.totalChildren - 1)
					{
						$("#"+el.id+"_button_right_disabled").hide();
						$('#'+el.id+'_button_right').show();						
					}
					
					if (index1 == 0)
					{
						$(this).hide();
						$("#"+el.id+"_button_left_disabled").show();
					}
					return false;
				});

			var $button_right = $("#"+el.id+"_button_right").click(function(){
					var href = index1+1;//href.replace(/^.*#/, '');
					el.pagination.find('.selected').removeClass('selected');
					$(this).addClass('selected');
					var params = {};

					if( el.opts.direction == 'horizontal'){
						params = {right:(el.opts.width*href)}
					};

					el.jqthis.stop().animate(params,el.opts.speed, el.opts.ease);
					index1 = href;
					
					if (index1 == el.totalChildren - 1)
					{
						$(this).hide();
						$("#"+el.id+"_button_right_disabled").show();
					}
					
					if (index1 > 0)
					{
						$('#'+el.id+'_button_left_disabled').hide();
						$('#'+el.id+'_button_left').show();
					}
					return false;
				});
			
			var $close_button = $("#close_button").click(function(){
				
				return false;
			});
			
			var $enlarge_button = $("#enlarge_button").click(function(){
				
				return false;
			});	
			

		}); // end : this.each(function()


		//alert(obj);

	};  // end : $.fn.jqGalScroll

	jqGalScroll = {
		ease: null,
		speed:0,
		height: 500,
		width: 500,
		titleOpacity : .60,
		direction : 'horizontal' // vertical horizontal diagonal
	};


	//$('#button_left').replaceWith(current);//
	//alert(current.get(0));

})(jQuery);