//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();

         })

     };