+
+[ -n "$values[X-ZACK-JOINDATE]" ] &&\
+ echo ' <span class="item X-ZACK-JOINDATE"><b>'$(l10n label_join)':</b> '$values[X-ZACK-JOINDATE]'</span>'
+[ -n "$values[X-ZACK-LEAVEDATE]" ] &&\
+ echo ' <span class="item X-ZACK-LEAVEDATE"><b>'$(l10n label_leave)':</b> '$values[X-ZACK-LEAVEDATE]'</span>'
+