using javascript api, error: FCKeditorAPI is not defined

I am am attempting to use the fckeditors javascript api per this document: http://docs.fckeditor.net/FCKeditor_2.x ... Script_API

Specifically I would like to use the InsertHTML functionality. I have done the following so far:

In PHP:

<?
   $oFCKeditor = new FCKeditor('FCKeditor1') ;
   $oFCKeditor->BasePath = 'library/fckeditor/';
   $oFCKeditor->ToolbarSet='Basic';
   $oFCKeditor->Value = stripslashes($template->email_body);
   $oFCKeditor->Create();
?>