/*
bxSlider v2.0
Plugin developed by: Steven Wanderski
http://bxslider.com
http://stevenwanderski.com

Released under the GPL license:
http://www.gnu.org/licenses/gpl.html
*/


(function($){
    $.fn.bxSlider = function(options){
		
		var defaults = {
			alignment: 'horizontal',
			controls: true, 
			speed: 500,
			pager: true,
			pager_short: false,
			pager_short_separator: ' / ',
			margin: 0,
			next_text: 'next',
			next_image: '',
			prev_text: 'prev',
			prev_image: '',
			auto: false,
			pause: 3500,
			auto_direction: 'next',
			auto_hover: true,
			auto_controls: false,
			ticker: false,
			ticker_controls: false,
			ticker_direction: 'next',
			ticker_hover: true,
			stop_text: 'stop',
			start_text: 'start',
			wrapper_class: 'bxslider_wrap'
		};
		
		var o = $.extend(defaults, options);
		
		return this.each(function(){
			var $this = $(this);
			var $kids = $this.children();
			var l = $this.children().length;
			var first = $this.children(':first').clone();
			var last = $this.children(':last').clone();
			var w=0, h=0, current_temp=0, pos=0, d=0;
			var is_working = false, playing = true, tick_play = true;
			var current = 1;
			var ease = 'swing', side = '', t = '';
			var ani = {};

			$this.append(first).prepend(last);
			$this.wrap('<div class="bxslider_container"></div>');
			$this.parent().wrap('<div class="'+o.wrapper_class+'"></div>');
			
			if(o.alignment == 'horizontal'){
				$this.children().css({'float':'left',	'listStyle':'none', 'marginRight':o.margin});
				w = first.outerWidth(true);
				$this.css({'width': '99999px', 'position':'relative', 'left':-w});
				$this.parent().css({'position':'relative', 'overflow':'hidden',	'width':w-o.margin});
			}else if(o.alignment == 'vertical'){
				$kids.each(function(){
					if($(this).height() > h){h = $(this).height();}					
				});
				w = first.outerWidth();
				$this.children().css({'height':h, 'listStyle':'none', 'marginBottom':o.margin});
				$this.css({'height':'99999px', 'width':w, 'position':'relative', 'top':-(h+o.margin)});
				$this.parent().css({'position':'relative', 'overflow':'hidden', 'height':h})
			}
						
			if(o.pager && !o.ticker){
				$this.parent().after('<div class="bx_pager"></div>');
				if(!o.pager_short){
					var $a;
					$kids.each(function(index){
						$a = $('<a href="#">'+(index+1)+'</a>');
						$this.parent().siblings('.bx_pager').append($a);
						$a.click(function(){
							is_working = false;
							tick_play = false;
							$this.stop();
							move_slide(index+1);
							current = index+1;
							if(o.auto){clearInterval(t); $this.parent().siblings('.auto_controls').find('a').html(o.start_text); playing=false;}
							else if(o.ticker){$this.parent().siblings('.ticker_controls').find('a').html(o.start_text); playing=false;}
							return false;
						});
					});
				}else{
					$this.parent().siblings('.bx_pager').append();
				}
				set_active(1);
			}

			if(o.controls && !o.ticker){
				if(o.next_image != '' || o.prev_image != ''){$this.parent().after('<a class="prev" href="#"><img src="'+o.prev_image+'" /></a><a class="next" href="#"><img src="'+o.next_image+'" /></a>');}
				else{$this.parent().after('<a class="prev" href="#">'+o.prev_text+'</a><a class="next" href="#">'+o.next_text+'</a>');}
				$this.parent().siblings('.next').click(function(){
					if(!is_working){move_slide(++current);}
					if(o.auto){clearInterval(t); $this.parent().siblings('.auto_controls').find('a').html(o.start_text); playing=false;}
					return false;
				});
				$this.parent().siblings('.prev').click(function(){
					if(!is_working){move_slide(--current);}
					if(o.auto){clearInterval(t); $this.parent().siblings('.auto_controls').find('a').html(o.start_text); playing=false;}
					return false;
				});
			}
			
			if(o.auto && !o.ticker){
				t=setInterval(function(){if(o.auto_direction == 'next'){move_slide(++current);}else{move_slide(--current);}}, o.pause);
				if(o.auto_hover){
					$this.hover(function(){clearInterval(t);},
					function(){
						if(playing){
						t = setInterval(function(){
							if(o.auto_direction == 'next'){move_slide(++current);}
							else{move_slide(--current);}
							}, o.pause);
						}
					});
						
				}
				if(o.auto_controls){
					$this.parent().after('<div class="auto_controls"><a class="auto_link" href="#">'+o.stop_text+'</a></div>');
					$this.parent().siblings('.auto_controls').find('a').click(function(){
						if(playing){clearInterval(t); $(this).html(o.start_text); playing=false;}
						else{
							t = setInterval(function(){if(o.auto_direction == 'next'){move_slide(++current);}else{move_slide(--current);}}, o.pause);
							$(this).html(o.stop_text);
							playing=true;
						}
						return false;
					});
				}				
			}
			
			if(o.ticker){
				var tick_play = true;
				tick_slide();
							
				$this.hover(function(){$this.stop();}, 
				function(){if(tick_play){tick_slide();}});
				
				if(o.ticker_controls){
					$this.parent().after('<div class="ticker_controls"><a class="ticker_link" href="#">'+o.stop_text+'</a></div>');
					$this.parent().siblings('.ticker_controls').find('a').click(function(){
						if(tick_play){$this.stop(); $(this).html(o.start_text); tick_play=false;}
						else{
							is_working = false;
							$(this).html(o.stop_text)
							tick_slide();
							tick_play=true;
						}
						return false;
					});				
				}				
			}
			
			function tick_slide(){
				if(o.ticker_direction == 'next' && o.alignment == 'horizontal'){
					$this.animate({left: '-=5px'}, o.speed/5, 'linear', function(){					
						if(parseInt($this.css('left')) <= -((l+1)*w)){$this.css('left', -w);}
						tick_slide();
					});
				}else if(o.ticker_direction == 'prev' && o.alignment == 'horizontal'){
					$this.animate({left: '+=5px'}, o.speed/5, 'linear', function(){					
						if(parseInt($this.css('left')) >= -(w)){$this.css('left', -((l+1)*w));}
						tick_slide();
					});
				}else if(o.ticker_direction == 'next' && o.alignment == 'vertical'){
					$this.animate({top: '-=5px'}, o.speed/5, 'linear', function(){					
						if(parseInt($this.css('top')) <= -((l+1)*(h+o.margin))){$this.css('top', -(h+o.margin));}
						tick_slide();
					});
				}else if(o.ticker_direction == 'prev' && o.alignment == 'vertical'){
					$this.animate({top: '+=4px'}, o.speed/5, 'linear', function(){					
						if(parseInt($this.css('top')) > -(h+o.margin)){$this.css('top', -((l+1)*(h+o.margin-1)));}
						tick_slide();
					});
				}
				
			}

			function move_slide(num){
				if(o.ticker){ease='linear';}
				if(!is_working){
					if (o.alignment == 'horizontal'){d=w; side='left';}
					else if (o.alignment == 'vertical'){d=h+o.margin; side='top';}
					pos = num*d;
					ani[side] = -pos;
					is_working=true;
					$this.animate(ani, o.speed, ease, function(){
						is_working=false;
						if(current>l){$this.css(side,-d); current=1;}
						else if (current < 1){$this.css(side,-(d*l)); current=l;}
						set_active(current);
					});
				}
			}
			
			function set_active(num){
				if(o.pager && !o.pager_short){$this.parent().siblings('.bx_pager').find('a').removeClass('active').eq(num-1).addClass('active');}
				else if(o.pager_short){$this.parent().siblings('.bx_pager').html(num+o.pager_short_separator+$kids.length);}
			}
						
			});
		};
		
})(jQuery);