Modifying FCKConfig while running

Hi

I want to add a new value to FCKConfig.ToolbarSets.
But I dont want to edit any file in the fckeditor directory, because I dont want it global and moreover & to avoid making changes all over when updating to a newer version of fckeditor.

var oFCKeditor = new FCKeditor('t1') ;
oFCKeditor.BasePath    = '../../fckeditor/';
oFCKeditor.ToolbarSet  = "Basic2";
oFCKeditor.Value       = '';
oFCKeditor.Height = 300;
oFCKeditor.Create() ;

This is what I want added to my HTML file.

FCKConfig.ToolbarSets["Basic2"] = [
        ['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
   ['OrderedList','UnorderedList','-','Outdent','Indent'],
   ['JustifyLeft','JustifyCenter','JustifyRight','JustifyFull'],
   ['Image', 'Link','Unlink'],
   ['TextColor','BGColor','-','Source']
] ;

FCKConfig.EnterMode = 'br' ;
FCKConfig.ShiftEnterMode = 'p' ;

But if I add it before var oFCKeditor = new FCKeditor('t1') ; , JS Error console says FCKConfig is not defined.
But if I add it after oFCKeditor.Create() ;, it says Basic1 is not a toolbar name and nothing happens, because Create() is called prior to this config changes.

So where do I make these config changes ?

Thanks