[galaxy-dev] Check file before uploading

Hi When selecting a file or after clicking on "Execute" to upload a file is it possible to check the file is appropriate i.e. by checking file extension etc, before the file is actually uploaded and put into the database? So the user can't upload the wrong file/format Thanks Neil Neil Burdett Software Engineer | The Australian e-Health Research Centre Computational Informatics CSIRO E: Neil.Burdett@csiro.au T: 07 3253 3626 Address: Level 5, UQ Health Science Building 901/16 Royal Brisbane and Women's Hospital, Herston, Brisbane, QLD, 4029 www.csiro.au | http://milxview.csiro.au