nl_tokens: Default read function using the webAPI
pl_tokens: function webAPIFileRead ( fileObj , startByte , endByte , fileType , chunk ) { var function_name = 'slice' ; if ( fileObj . file . slice ) function_name = 'slice' ; else if ( fileObj . file . mozSlice ) function_name = 'mozSlice' ; else if ( fileObj . <mask> . webkitSlice ) function_name = 'webkitSlice' ; chunk . readFinished ( fileObj . file [ function_name ] ( startByte , endByte , fileType ) ) ; }