why is this happening?

Hi,

I used Editor html and AsyncFileUpload in my page,

when I run this page and try to upload image with asyncfileupload send this error,

"0x800a01bd - JavaScript runtime error: Object doesn't support this action"

I found out editor is my problem when delete this Ajax control this problem gone, And I can use it again to upload file, But I need both together.

plz help me THANKS.