File download - file name with spaces

I use the resp.setHeader("Content-disposition", "attachment; filename="+filename) method. it works. However, when the file name contains spaces the dowloaded file's name is only the part of the string up to the space, nothing more. Is there a way to deal with it? I'm replacing spaces for '_' at the moment but that's not exactly what I want.

Thanks.

[368 byte] By [szczypiora] at [2007-11-26 15:07:27]