来回交换图像和按钮

Question

我需要你的帮助。在论坛上找到了这个代码，我想用它：

<a id="element1" onClick="javascript:changeText(1)">Read More...</a>

function changeText(idElement) {
 var element = document.getElementById('element' + idElement);
  if (idElement === 1 || idElement === 2) {
     if (element.innerHTML === 'Read More...') element.innerHTML = 'Close';
        else {
            element.innerHTML = 'Read More...';
    }
  }
}

是否可以通过单击来交换文本，但同时交换2张图像？

Situation 1: Read More... and image 1 shown
Situation 2: Close and image 2 shown
Situation 3: Read More... and image 1 shown