[custom button] how to get a button with text clicable?

Hello!

I want to add a button to the toolbar of the fckeditor (2.5.1) and I have seen only examples that use an image (as the "visible" part of the button).
I would like to use instead a (object that would contain) text (that would have a onClick event associated).

<span id="mybutton"  class="emulButton"  onclick="Action();"  onmouseover="mouseOver();" onmouseout="mouseOut();" >

I can't find how to associate a button with a label.I tried using the fcktoolbarbutton object, and now I don't know how to replace the image by the text.
(I did it with another editor with span and changing the content innerHTML like this:


Could you help me?

Thank you!

Here's my code:

var oCorrectItem = new FCKToolbarButton ('My_Button', "tooltip");
var SEP = "/";
oCorrectItem.IconPath = FCKPlugins.Items['myplugin'].Path + 'img' + SEP + 'ico_plug1.gif';