iCagenda user guide and tips
The custom attribute name 'cal_date' is not valid. It was discovered that it must start with 'data-' (to avoid possible future conflicts as html5 is developed) so changed to 'data-cal-date'.
<?php // Color of date text depending of the category color ?> <a> <div class="<?php echo $stamp->ifToday; ?> <?php echo $bgcolor; ?>" data-cal-date="<?php echo $stamp->this_day; ?>"> <?php echo $stamp->Days; ?> </div> </a>
Change cal_date to data-cal-date (line 116 in official default theme pack)
<?php // Day with no event ?> <?php }else{ ?> <div class="<?php echo $stamp->ifToday; ?>" data-cal-date="<?php echo $stamp->this_day; ?>"> <?php echo $stamp->Days; ?> </div> <?php } ?>