text: ;(function($){
  	$.fn.zoom = function(options){
  		// 默认配置
  		var _option = {
  			align: "left",				// 当前展示图片的位置，则放大的图片在其相对的位置
  			thumb_image_width: 360,		// 当前展示图片的宽
  			thumb_image_height: 250,	// 当前展示图片的高
  			source_image_width: 900,  	// 放大图片的宽
  			source_image_height: 1200,	// 放大图片的高
  			zoom_area_width: 600, 		// 放大图片的展示区域的宽
  			zoom_area_height: "justify",// 放大图片的展示区域的高
  			zoom_area_distance: 10,     //
  			zoom_easing: true,          // 是否淡入淡出
  			click_to_zoom: false,
  			zoom_element: "auto",
  			show_descriptions: true,
  			description_location: "bottom",
  			description_opacity: 0.7,
  			small_thumbs: 3,			// 小图片展示的数量
  			smallthumb_inactive_opacity: 0.4, 	// 小图片处于非激活状态时的遮罩透明度
  			smallthumb_hide_single: true,    	//
  			smallthumb_select_on_hover: false,
  			smallthumbs_position: "bottom",		// 小图片的位置
  			show_icon: true,
  			hide_cursor: false,			// 鼠标放到图片时，是否隐藏指针
  			speed: 600,     			//
  			autoplay: true,				// 是否自动播放
  			autoplay_interval: 6000, 	// 自动播放时每张图片的停留时间
  			keyboard: true,
  			right_to_left: false,
  		}
  
  		if(options){
  			$.extend(_option, options);
  		}
  
  		var $ul = $(this);
  		if($ul.is("ul") && $ul.children("li").length && $ul.find(".bzoom_big_image").length){
  
  			$ul.addClass('bzoom clearfix').show();
  			var $li = $ul.children("li").addClass("bzoom_thumb"),
  				li_len = $li.length,
  				autoplay = _option.autoplay;
  			$li.first().addClass("bzoom_thumb_active").show();
  			if(li_len<2){
  				autoplay = false;
  			}
  
  			$ul.find(".bzoom_thumb_image").css({width:_option.thumb_image_width, height:_option.thumb_image_height}).show();
  
  			var scalex = _option.thumb_image_width / _option.source_image_width,
  				scaley = _option.thumb_image_height / _option.source_image_height,
  				scxy = _option.thumb_image_width / _option.thumb_image_height;
  
  			var $bzoom_magnifier, $bzoom_magnifier_img, $bzoom_zoom_area, $bzoom_zoom_img;
  
  			// 遮罩显示的区域
  			if(!$(".bzoom_magnifier").length){
  				$bzoom_magnifier = $('<li class="bzoom_magnifier"><div class=""><img src="" /></div></li>');
                  $bzoom_magnifier_img = $bzoom_magnifier.find('img');
  
                  $ul.append($bzoom_magnifier);
  
                  $bzoom_magnifier.css({top:top, left:left});
                  $bzoom_magnifier_img.attr('src', $ul.find('.bzoom_thumb_active .bzoom_thumb_image').attr('src')).css({width: _option.thumb_image_width, height: _option.thumb_image_height});
                  $bzoom_magnifier.find('div').css({width:_option.thumb_image_width*scalex, height:_option.thumb_image_height*scaley});
  			}
  
  			// 大图
  			if(!$('.bzoom_zoom_area').length){
                  $bzoom_zoom_area = $('<li class="bzoom_zoom_area"><div><img class="bzoom_zoom_img" /></div></li>');
                  $bzoom_zoom_img = $bzoom_zoom_area.find('.bzoom_zoom_img');
                  var top = 0,
                      left = 0;
  
                  $ul.append($bzoom_zoom_area);
  
                  if(_option.align=="left"){
                  	top = 0;
                  	left = 0 + _option.thumb_image_width + _option.zoom_area_distance;
                  }
  
                  $bzoom_zoom_area.css({top:top, left:left});
                  $bzoom_zoom_img.css({width: _option.source_image_width, height: _option.source_image_height});
  			}
  
  			var autoPlay = {
  				autotime : null,
  				isplay : autoplay,
  
  				start : function(){
  					if(this.isplay && !this.autotime){
  						this.autotime = setInterval(function(){
  							var index = $ul.find('.bzoom_thumb_active').index();
  							changeLi((index+1)%_option.small_thumbs);
  						}, _option.autoplay_interval);
  					}
  				},
  
  				stop : function(){
  					clearInterval(this.autotime);
  					this.autotime = null;
  				},
  
  				restart : function(){
  					this.stop();
  					this.start();
  				}
  			}
  
  			// 循环小图
  			var $small = '';
  			if(!$(".bzoom_small_thumbs").length){
  				var top = _option.thumb_image_height+10,
  					width = _option.thumb_image_width,
  					smwidth = (_option.thumb_image_width / _option.small_thumbs) - 10,
  					smheight = smwidth / scxy,
  					ulwidth =
  					smurl = '',
  					html = '';
  
  				for(var i=0; i<_option.small_thumbs; i++){
  					smurl = $li.eq(i).find('.bzoom_thumb_image').attr("src");
  
  					if(i==0){
  						html += '<li class="bzoom_smallthumb_active"><img src="'+smurl+'" alt="small" style="width:'+smwidth+'px; height:'+smheight+'px;" /></li>';
  					}else{
  						html += '<li style="opacity:0.4;"><img src="'+smurl+'" alt="small" style="width:'+smwidth+'px; height:'+smheight+'px;" /></li>';
  					}
  				}
  
  				$small = $('<li class="bzoom_small_thumbs" style="top:'+top+'px; width:'+width+'px;"><ul class="clearfix" style="width: 485px;">'+html+'</ul></li>');
  				$ul.append($small);
  
  				$small.delegate("li", "click", function(event){
  					changeLi($(this).index());
  					autoPlay.restart();
  				});
  
  				autoPlay.start();
  			}
  
  			function changeLi(index){
  				$ul.find('.bzoom_thumb_active').removeClass('bzoom_thumb_active').stop().animate({opacity: 0}, _option.speed, function() {
                      $(this).hide();
                  });
                  $small.find('.bzoom_smallthumb_active').removeClass('bzoom_smallthumb_active').stop().animate({opacity: _option.smallthumb_inactive_opacity}, _option.speed);
  
                  $li.eq(index).addClass('bzoom_thumb_active').show().stop().css({opacity: 0}).animate({opacity: 1}, _option.speed);
                  $small.find('li:eq('+index+')').addClass('bzoom_smallthumb_active').show().stop().css({opacity: _option.smallthumb_inactive_opacity}).animate({opacity: 1}, _option.speed);
  
                  $bzoom_magnifier_img.attr("src", $li.eq(index).find('.bzoom_thumb_image').attr("src"));
  			}
  
  
  
  
  			_option.zoom_area_height = _option.zoom_area_width / scxy;
  			$bzoom_zoom_area.find('div').css({width:_option.zoom_area_width, height:_option.zoom_area_height});
  
  			$li.add($bzoom_magnifier).mousemove(function(event){
  				var xpos = event.pageX - $ul.offset().left,
  					ypos = event.pageY - $ul.offset().top,
  					magwidth = _option.thumb_image_width*scalex,
  					magheight = _option.thumb_image_height*scalex,
  					magx = 0,
  					magy = 0,
  					bigposx = 0,
  					bigposy = 0;
  
  				if(xpos < _option.thumb_image_width/2){
  					magx = xpos > magwidth/2 ? xpos-magwidth/2 : 0;
  				}else{
  					magx = xpos+magwidth/2 > _option.thumb_image_width ? _option.thumb_image_width-magwidth : xpos-magwidth/2;
  				}
  				if(ypos < _option.thumb_image_height/2){
  					magy = ypos > magheight/2 ? ypos-magheight/2 : 0;
  				}else{
  					magy = ypos+magheight/2 > _option.thumb_image_height ? _option.thumb_image_height-magheight : ypos-magheight/2;
  				}
  
  				bigposx = magx / scalex;
  				bigposy = magy / scaley;
  
  				$bzoom_magnifier.css({'left':magx, 'top':magy});
  				$bzoom_magnifier_img.css({'left':-magx, 'top': -magy});
  
  				$bzoom_zoom_img.css({'left': -bigposx, 'top': -bigposy});
  			}).mouseenter(function(event){
  				autoPlay.stop();
  
  				$bzoom_zoom_img.attr("src", $(this).find('.bzoom_big_image').attr('src'));
  				$bzoom_zoom_area.css({"background-image":"none"}).stop().fadeIn(400);
  
  				$ul.find('.bzoom_thumb_active').stop().animate({'opacity':0.5}, _option.speed*0.7);
  				$bzoom_magnifier.stop().animate({'opacity':1}, _option.speed*0.7).show();
  			}).mouseleave(function(event){
  				$bzoom_zoom_area.stop().fadeOut(400);
  				$ul.find('.bzoom_thumb_active').stop().animate({'opacity':1}, _option.speed*0.7);
  				$bzoom_magnifier.stop().animate({'opacity':0}, _option.speed*0.7, function(){
  					$(this).hide();
  				});
  
  				autoPlay.start();
  			})
  		}
  	}
  })(jQuery);
  