FCKeditor arabic language not coming up

I am using FCKeditor in one of my projects.

<textarea name="Content_Arabic" id="Content_Arabic" cols="35" rows="4" class="txtfield"><?php echo (stripslashes(stripslashes($_POST['Content'])));?></textarea>
<script type="text/javascript">
    var editor = new ew_DHTMLEditor("Content_Arabic");

    editor.create = function() {
        var sBasePath = 'FCKeditor/';
        var oFCKeditor = new FCKeditor('Content_Arabic', '100%', 350, 'Default');
        oFCKeditor.BasePath = sBasePath;
        oFCKeditor.ReplaceTextarea();
        oFCKeditor.rtl;
         oFCKeditor.ContentLangDirection='rtl';
        this.active = true;
    }
    ew_DHTMLEditors[ew_DHTMLEditors.length] = editor;

    ew_CreateEditor();  // Create DHTML editor(s)

    //-->
</script>

This loaded editor but it's still English style.

I want it to load as Arabic language style, from right to left.

The solution below assumes that you want this configuration statically for all the instances of the FCKEditor in your solution*.

Simply edit the file /path/to/your_fckeditor_installation_dir/fckeditor.js and change the following properties as follows:

FCKConfig.AutoDetectLanguage    = false ;
FCKConfig.DefaultLanguage       = 'ar' ;

EDIT

From your code above you just need the following lines (delete the rest):

var oFCKeditor = new FCKeditor('Content_Arabic', '100%', 350, 'Default');
oFCKeditor.BasePath = 'FCKeditor/';
oFCKeditor.ReplaceTextarea();

And that's all!

*If you want this to change dynamically then you should alter your approach following these guidelines