JS double-click the input box to modify the content in batches

Double-click the blank space or the text becomes an input box to modify the content:

html code

<td class="center" ondblclick="ShowElement(this,&#39;intro&#39;)">{$vo.intro}</td>
<td class="center" ondblclick="ShowElement(this,&#39;address&#39;)">{$vo.address}</td>

js code

//双击修改
function ShowElement(element,abc){
 // console.log(abc);
 var list = abc;
 var me = element;
 var oldhtml = element.innerHTML;
 var newobj = document.createElement('input');
 newobj.type = 'text';//修改新创建的input的类型
 element.innerHTML = '';//清空td中的内容用于存放新创建input;
 $(newobj).attr({ value:oldhtml});
 element.appendChild(newobj);//把input放入td
 //给input对象绑定鼠标移开事件
 newobj.onblur = function(){
  // 判断是否满足发送ajax的条件
  if(this.value != oldhtml){
   element.innerHTML = this.value;
   var value = this.value;
   // alert(value);
   //发送ajax请求
   var id = $(me).parents('.gradeA').find('.sid').html();
   var url = "{:U('Admin/Friend/onclick')}";
   var btn = $(this);
   $.ajax({
      url:url,
      data:{id:id,list:list,value:value},
      type:'post',
      success:function(data){
         console.log(data);
        if(data == 0){
          alert('修改成功')
        }else{
          alert('修改失败');
        }
      }
   })
  }else{
   element.innerHTML = oldhtml;//放入原来的内容
   // return false;
  }
 }
 newobj.focus();
 // return false;
 }