$db = JFactory::getDBO(); 
$query = $db->getQuery(true);

$sessions = $_POST['form']['Sessions']; 
array_unshift($sessions, 'ALL');

if($sessions[0]=='ALL')
{
	$sql = "SELECT `COLUMN_NAME` FROM `INFORMATION_SCHEMA`.`COLUMNS` WHERE `TABLE_SCHEMA` = 'mintoska_5942395' AND `TABLE_NAME` = 'skat_rsform_skater_sessions'";
	$db->setQuery($sql);
	$db->query();
	$sessions= $db->loadAssocList();
	for($i=1;$i<count($sessions); $i++)
	{
		$thankYouMessage = $thankYouMessage .  '<style>p {margin: 0}</style>' . '<h2>'.$sessions[$i] . '</h2>';
		$sql = "SELECT `{$sessions[$i]}` FROM `#__rsform_skater_sessions` WHERE `{$sessions[$i]}` !='NULL' AND `{$sessions[$i]}` !='' ORDER BY `{$sessions[$i]}`";
		$db->setQuery($sql);
		$db->query();
		$skaters= $db->loadAssocList();
		for($j=0;$j<count($skaters);$j++)
		{
			$thankYouMessage = $thankYouMessage . '<p>' . $skaters[$j][$sessions[$i]] . '</p>';
		}
	}
	echo $thankYouMessage;
	
}
else
{
	for($i=0;$i<count($sessions); $i++)
	{
		$thankYouMessage = $thankYouMessage .  '<style>p {margin: 0}</style>' . '<h2>'.$sessions[$i] . '</h2>';
		$sql = "SELECT `{$sessions[$i]}` FROM `#__rsform_skater_sessions` WHERE `{$sessions[$i]}` !='NULL' AND `{$sessions[$i]}` !='' ORDER BY `{$sessions[$i]}`";
		$db->setQuery($sql);
		$db->query();
		$skaters= $db->loadAssocList();
		for($j=0;$j<count($skaters);$j++)
		{
			$thankYouMessage = $thankYouMessage . '<p>' . $skaters[$j][$sessions[$i]] . '</p>';
		}
	}
	echo $thankYouMessage;
}