Custom filebrowser using javascript way

Hi,

I'm using javascript based FileManager which I want to integrate with CKEditor. To do so I have to run FileManager.open callback when hit "Browse" button and prevent from opening useless popup window. Although I used:

CKEDITOR.replace( 'myID',
{
  width: 500, height: 300,
  filebrowserBrowseUrl: CKFileManager.open
} );

it didn't work and

CKEDITOR.replace( 'myID',
{
  width: 500, height: 300,
  filebrowserBrowseUrl: 'javascript: CKFileManager.open();'
} );

didn't work either. How can I do this?