Tinymce; emoticons not sabing to DB in img format

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TinyMCE

Hi to everybody! I need some help.

I want to put emoticons and it look fine. I click on the icons and it apear on the textarea.

Simple IMG

Late i do this to get the content of text area and save it to db.

I use

var text = tinymce.activeEditor.getContent();

the recuest is some strange.
When I get the content to an alert();

<p>hi world! (emoticon, and not the code, for example <img src="http://img.img.png"> )</p>

If I lok into the db I see;

<p>hi world!</p>

I think that it should see

<p>hi world!<img src='http://img/smile.png'></p>

Thankyou!!

What I have tried:

I try

relative_urls: true/false