<td class="table_none table_none_NoWidth" colspan="3">
                        <asp:Image ID="FenZiShiImageData_Disp" border="0" runat="server" onclick="javascript:window.open(MaxImgUrl)" onchange="change();" 
                            Style="cursor: pointer" title="点击放大" Width="300px"/>
                        <br />
                         <input type="file"  id="FenZiShiImageData"  accept="jpg"  onchange="change();" size="60" name="File1"  runat="server"  />&nbsp;
                        </td>我这是一个asp的Image控件 一个type="file"的input控件,
  function change()
    {
    var   imgOb   =   document.getElementById("FenZiShiImageData_Disp");   
        
            alert('图片选择成功!!!');
          
    }
在change()里获取了FenZiShiImageData_Disp的对象 但怎么改变它的ImageUrl 和 Visible 属性呢