Custom object with children plugin

Hi,

I am trying to create a plugin for CKEditor that adds a custom object with children.

Example:

<div>
    <img src="someimage.jpg" />
    <p>
        Some text
        <span>Some subtext</span>
    </p>
    <img src="someStaticImage.jpg" />
</div>

In the onOk function i have:

---snip---
this.imgElement.setAttribute('src',path + data.imageSrc);
this.staticImgElement.setAttribute('src',path + 'images/staticimg.jpg');
this.imgElement.appendTo(this.element);
this.imgElement.appendTo(this.element);
this.staticImgElement.appendTo(this.element);
---snip---

I would like for this block to behave as a single element, meaning that pressing backspace deletes the whole block, double clicking on it opens the edit dialog...

Any idea how i could do that?

I came close with setting

this.element.setAttribute('contenteditable','false');

However this doesn't allow content to be inserted before "it", if "it" was the first element in the ckedit window.