Insert graphic in middle of text

Hi.

Now, I can insert images inside a TextFlow. But I have a problem.

For example, I write something like: "This is an example of text", next, I put the cursor between "an" and "example", then, I push my button to insert a image but this image inserts at finish of my text.

I understand that this happens because I use:

p.addChild(inlineGraphic);

where "p" is a ParagraphElement then, this insert the graphic at the end.

I need insert a image exactly where is the cursor.

How can I do that?

Please, I need your help.