function calcPrice($conf, $data, $paymentData, $promo = null)
{			
	// Conf Type
	$full = false;
	
	// Prices
	$discount = $promo;
	$newPrice = 0;
	$originalPrice = 0;
	$lunchPrice = 0;
	
	// Number of days
	$days = 0;
	
	// Number of Meals
	$nMeals = 0;
	
	// Dates
	$today = time();
	$cutOff = strtotime($conf['early_cutoff_date']);	

	// Get individual days
	
	if (!$full)
	{
		for ($x = 1; $x <= 3; $x++)
		{
			if ($data['day_' . $x] == 1)
				$days++;
		}
	}

	// Get Luncheons prices
	$query = execsql("SELECT * FROM meals WHERE conf_id = {$data['conf_id']}");
	while($fetch = mysql_fetch_array($query))
		$meals[] = $fetch;	
	
	// Add Luncheons	
	for ($k = 1; $k <= 3; $k++)
	{
		if ($data['meal_' . $k] == 1)
		{
			$lunchPrice = $lunchPrice + $meals[$k - 1]['fee'];
			$nMeals++;
		}
	}	
	
	// Complete Conference?	
	switch ($data['full_tuition'])
	{
		case 1:
			$full = true;
			$originalPrice = $conf['full_conf_cost'] + $lunchPrice;
			$earlybirdrate = $conf['early_discount'];
			$days = 3;
			break;
		case 0:
			$full = false;
			// Get single day prices
			$query = execsql("SELECT * FROM days WHERE conf_id = {$data['conf_id']}");
			while($temp = mysql_fetch_array($query))
				$single[] = $temp;
			
			for ($z = 0; $z < $days; $z++)
			{
				$originalPrice = $originalPrice + $single[$z]['single_fee'];
				$earlybirdrate = $earlybirdrate + $single[$z]['early_discount'];
			}
				
			$originalPrice = $originalPrice + $lunchPrice;
			
			break;
	}
		
	$prices['meal_price'] = $lunchPrice;
	$prices['new'] = $originalPrice;
	
	// Early Bird Rate
	if($today < $cutOff and (empty($promo['code']) or strtolower($promo['code']) == 'none') and ($data['payment_method'] != 'Paper Registration'))
	{				
		// With fixes for Crucial #1
 		$prices['new'] = $originalPrice - $earlybirdrate - 25 ;
		$prices['discount'] = $earlybirdrate + 25;
		$prices['early_discount'] = $conf['early_discount'];
	}	
	
	// Promo
	
	elseif (strtolower($promo['code']) != 'none')
	{		
		if ($full)
		{
 			$prices['new'] = $originalPrice - $promo['discount_full_conf'] - 25;
			$prices['discount'] = $promo['discount_full_conf'];
		}
			
		elseif(!$full)
		{
			$prices['new'] = $originalPrice - (($promo['discount_single_day'] * $days))- ($days * 25);
			$prices['discount'] = ($promo['discount_single_day'] * $days);
		}
		
			
		$prices['promo_discount'] = $prices['discount'];
	}
	
	// CC payment
		
	/*if ($data['payment_method'] == 'Credit Card')
	{
		if ($full)
			$cc = $paymentData['discount_full_conf'];
			
		elseif (!$full)
			$cc = $paymentData['discount_single_day'] * $days;
			
		$prices['payment_discount'] = $cc;
	}
			
	else */
	$cc = 0;
	print_r($prices);
	

	// Prices
		
	$prices['original'] = $originalPrice;
	$prices['discount'] = $prices['discount'] + $cc;
	$prices['new'] = $prices['new'] - $cc;
	$prices['days'] = $days;
	$prices['meals'] = $nMeals;
	$prices['promo'] = strtolower($promo['code']) != 'none';

	if ($data['payment_method'] == 'Paper Registration')
	{
		if ($full)
			$prices['original'] = $prices['original'] + $paymentData['discount_full_conf'];
			
		elseif (!$full)
			$cc = $prices['original'] + $paymentData['discount_single_day'] * $days;
	}
	
	return $prices;
}