HtmlEditorExtender: Default Font Size

Hi,

I'm currently creating a number of dynamic HtmlEditorExtender controls through the code behind e.g.

AjaxControlToolkit.HtmlEditorExtender htmlEditorExtender = new AjaxControlToolkit.HtmlEditorExtender();

I have however ran into a problem. I would like to be able to set the default font size (currently ranges from 1-7) to 3 but have no idea how to go about doing this and so was just wondering if anyone knew a solution?

Thanks for any help.

Daniel