Message upon leaving upload page for chrome and other that support it (ignored by at least firefox).
Message upon leaving upload page for chrome and other that support it (ignored by at least firefox).


git-svn-id: 28fe03dfd74dd77dcc8ecfe99fabcec8eed81bba@3016 8555b757-d854-4b86-925a-82fd84c90ff4

Emiel-Codebridge/filesender,filesender/filesender,jornane/filesender,filesender/filesender,Veredior/filesender,filesender/filesender,Emiel-Codebridge/filesender,Emiel-Codebridge/filesender,Veredior/filesender,filesender/filesender,jornane/filesender,filesender/filesender,jornane/filesender,Veredior/filesender,Veredior/filesender,Veredior/filesender,jornane/filesender,Emiel-Codebridge/filesender