前端jquery实现点击图片弹出大图层(且滚动鼠标滑轮图片缩放)

<img  src="{$vo.photo}" height="50px" onclick="showdiv({$i});">

<div id="bg"></div>

<div id="show{$i}" class="show" style="display:none;">                                                                
<img  src="{$vo.photo}" onclick="hidediv({$i});" alt="鼠标放上滑动鼠标滑动放大缩小此图片" title="鼠标放上滑动鼠标滑动放大缩小此图片" onmousewheel="return bbimg(this)" style="cursor: pointer;" border="0">
</div>

 <script type="text/javascript">
        function loserbtn(mid){
                var msg= $("#loserinfo  option:selected").text();
                var url="{:U('/admin/merchant/loserbtn')}";
                url=url+'?mid='+mid+'&msg='+msg;
                window.location=url;
        }

      //图片弹出层显示原图大小js
      function showdiv(i) {
            document.getElementById("bg").style.display ="block";
            document.getElementById("show"+i).style.display ="block";
      }
      function hidediv(i) {
          document.getElementById("bg").style.display ='none';
          document.getElementById("show"+i).style.display ='none';
      }

      //图片缩小放大js
      function bbimg(o){
          var zoom=parseInt(o.style.zoom, 10)||100;zoom+=event.wheelDelta/12;if (zoom>0) o.style.zoom=zoom+'%';
          return false;
      }
</script>
<style type="text/css">
         #bg{ display: none; position: absolute; top: 0%; left: 0%; width: 100%; height: 100%; background-color: black; z-index:1001; -moz-opacity: 0.7; opacity:.70; filter: alpha(opacity=70);}
          .show{display: none; position: absolute; top: 10%; left: 10%; width: 80%; height: 80%; padding: 8px; border: 8px solid #E8E9F7; background-color: white; z-index:1002; overflow: auto;}
</style>

　

 <div class="am-container lose">
    <div class="am-g">
       <?php if(!empty($result['image'])){ ?>
           <div class="am-u-sm-12" style="text-align:center; border-bottom:#CCC 1px solid; width:90%; margin-left:5% ">
              	<div class="am-slider am-slider-default" data-am-flexslider>
		<ul class="am-slides">
                    <?php foreach($result['image'] as $value){ ?>
                      <li style="">

　　　　　　　　　　　　　　　　<img class='img_src' onclick='showdiv(this);' src="<?php echo $value['img']; ?>" />  //小图片显示区

　　　　　　　　　　　　　</li>
                    <?php }?>
                </ul>
                    </div>
              </div>
              <?php } ?>
           </div>

           <!--点击图片放大区域-->
          <div id="bg"></div>
          <div id="show" class="show" style="display:none;">
          <img class="get_src"  src="" onclick="hidediv(this);" onmousewheel="return bbimg(this)" style="cursor: pointer;" border="0">
          </div>

 <style type="text/css">
          #bg{ display: none; position: absolute; top: 0%; left: 0%; width: 100%; height: 100%; background-color: black; z-index:1001; -moz-opacity: 0.7; 
opacity:.70; filter: alpha(opacity=70);}
          .show{display: none; position: absolute; top: 10%; left: 0%; border: 8px solid #E8E9F7; background-color: white; z-index:1002; overflow: auto;}
 </style>
 <script>
     //图片弹出层显示原图大小js
     function showdiv(obj) {
          var src=$(obj).attr("src");
          $('.get_src').attr("src",src);
          document.getElementById("bg").style.display ="block";
          document.getElementById("show").style.display ="block";
      }
      function hidediv() {
           document.getElementById("bg").style.display ='none';
           document.getElementById("show").style.display ='none';
      }
　　　//图片缩小放大js（移动端无效）
     function bbimg(o){
           var zoom=parseInt(o.style.zoom, 10)||100;zoom+=event.wheelDelta/12;if (zoom>0) o.style.zoom=zoom+'%';
           return false;
     }
    </script>