private void bCopyDescUpActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_bCopyDescUpActionPerformed
        int nr = number;
        while(true) {
            if(nr>0 && !Data.getFiles().get(nr-1).isVisible()) --nr;
            else break;
        }

        if(nr>0) {
            --nr;
            PFile f = Data.getFiles().get(nr);
            copyDescription(f);
        }
    }//GEN-LAST:event_bCopyDescUpActionPerformed