Window.opener undefined in IE8?

Question

I can't figure out where I am going wrong with this. In other browsers, it works fine:

function main__pageeditor_new_body_SetUrl()
    {
        function getUrlParam(parentObject, paramName)
        {
          var reParam = new RegExp('(?:[\?&]|&)' + paramName + '=([^&]+)', 'i') ;            
          var match = parentObject.location.search.match(reParam) ;

           return (match && match.length > 1) ? match[1] : '' ;
        }

        var funcNum = getUrlParam(this, 'CKEditorFuncNum');

        this.opener.CKEDITOR.tools.callFunction(funcNum, arguments[0]);
}

But in IE you get this error:

'this.opener.CKEDITOR' is null or not an object

Why wouldn't this work?

Answer 1

For anyone wondering - This helped quite a bit:

http://docs.cksource.com/CKEditor_3.x/Developers_Guide/File_Browser_(Uploader)/Custom_File_Browser