Item8677: documenting JSCalendarContrib

adding a short section "Using the Calendar for picking dates only or picking times and dates" to the documentation

git-svn-id: http://svn.foswiki.org/trunk@7020 0b4bb1d4-4e5a-0410-9cc4-b2b747904278

JSCalendarContrib/data/System/JSCalendarContrib.txt

@@ -12,6 +12,13 @@ This module packages the [[http://dynarch.com/mishoo/calendar.epl][Mishoo JSCale
 ---++ Detailed Documentation
 %$POD%
 
+---+++ Using the Calendar for picking dates only or picking times and dates
+
+The calendar is able to display a time-picker, in addition to the default date-picker, depending on the optional date format passed.
+
+   * the calendar displays the built-in time picker when the passed format descriptions includes hours, minutes or am or pm specifiers (i.e.: =%H, %I, %k, %l, %M, %p, %P=),
+   * otherwise the calendar is displayed normally with only dates if anything else or no format description is passed.
+
 ---+++ Using the Calendar in user forms
 You can also use the calendar directly in your own hand-built forms, without
 having to write any code. Just add this inline in the topic text: