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Joomla Programming (Joomla 1.5.x)

You may have come across coding like the one here...

JHTML::_( 'behavior.calendar' );
..
..
< input class="inputbox" type="text" name="review_date"
id="review_date" size="25" maxlength="19"
value="< ?php echo $row->review_date; ?>" / >
< input type="reset" class="button" value="..."
onclick=" return showCalendar( 'review_date','y-mm-dd' );" / >

The part that is inaccurate is the date format, which is, 'y-mm-dd'. Instead of showing the date, it shows y-mm-dd literally.

Replace it with '%y-%m-%d'

Or replace with '%Y-%m-%d' if you want the year in 4 digit format i.e. 2008.

More info from here and here.