ckeditor image tag broken

Hello Everybody,

I want to include image tag in my 'ckeditor' for my custom block. But the src attribute in my image tag contain my site name ex.'newsite/sites/default/files/images' where 'newsite' is my site name, which may create problem and image link may get broken(if i change my site name) when i migrate my site to live server. Please suggest me a way to overcome this problem...

Thank You