相册弹窗（基于zepto.js）

 　　　　//放大图片
         $(page).on('click','.popupImage img',function () {
             var that = $(this);
             that.popupImage({
                 this:that,
                 width:"200px"
             })
         });

 　　//相册弹窗
     $.fn.popupImage = function (obj) {
         var $this = obj.this;
         var sj_w = $this[0].naturalHeight;
         var src = $this.attr('src');
         var h = $('body').height();
         var w = $('body').width();
         var padding = 10;
         var shadeW = w - padding*2;
         var img = '',shade = '';

         img = '<div class="popup-image" style="position:absolute; top:0; left:0; z-index: 999999; padding:10px '+padding+'px; width: '+w+'px; height:'+h+'px; line-height: '+h+'px; text-align: center;" >' +
             '<img src="'+src+'" style="max-width: '+shadeW+'px"/></div>';
         shade = '<div class="shade" style="position:absolute; top:0; left:0;  width: '+w+'px; height:'+h+'px;background: #000; z-index: 999990; opacity: .8;"></div>';

         $('body').append(shade);
         $('body').append(img);        

         $('.popup-image').on('click',function () {
             $('.popup-image').remove();
             $('.shade').remove();
         })

     };