为什么要更改div内容只需创建两个div，隐藏第二个div。在处理/提交的第一个div上执行一些操作点击设置visiblity =trueon second div nad visibility =falsefor first div

why you are changing div content just create two div, hide second div. perform some action on first div on processing / submit click set visiblity="true" on second div nad visibility="false" for first div