Code Changes

	}

	/**
	* Find the index for a specified key in the innermost specified block
	*
	* @param	string	$blockname	the blockname, for example 'loop'
	* @param	mixed	$key		Key to search for
	*
	* array: KEY => VALUE [the key/value pair to search for within the loop to determine the correct position]
	*
	* int: Position [the position to search for]
	*
	* If key is false the position is set to 0
	* If key is true the position is set to the last entry
	*
	* @return mixed false if not found, index position otherwise; be sure to test with ===
	*/
	public function find_key_index($blockname, $key)
	{
		// For nested block, $blockcount > 0, for top-level block, $blockcount == 0
		$blocks = explode('.', $blockname);
		$blockcount = sizeof($blocks) - 1;

		$block = $this->tpldata;
		for ($i = 0; $i < $blockcount; $i++)
		{
			if (($pos = strpos($blocks[$i], '[')) !== false)
			{
				$name = substr($blocks[$i], 0, $pos);

				if (strpos($blocks[$i], '[]') === $pos)
				{
					$index = sizeof($block[$name]) - 1;
				}
				else
				{
					$index = min((int) substr($blocks[$i], $pos + 1, -1), sizeof($block[$name]) - 1);
				}
			}
			else
			{
				$name = $blocks[$i];
				$index = sizeof($block[$name]) - 1;
			}
			if (!isset($block[$name]))
			{
				return false;
			}
			$block = $block[$name];
			if (!isset($block[$index]))
			{
				return false;
			}
			$block = $block[$index];
		}

		if (!isset($block[$blocks[$i]]))
		{
			return false;
		}
		$block = $block[$blocks[$i]]; // Traverse the last block

		// Change key to zero (change first position) if false and to last position if true
		if ($key === false || $key === true)
		{
			return ($key === false) ? 0 : sizeof($block) - 1;
		}

		// Get correct position if array given
		if (is_array($key))
		{
			// Search array to get correct position
			list($search_key, $search_value) = @each($key);
			foreach ($block as $i => $val_ary)
			{
				if ($val_ary[$search_key] === $search_value)
				{
					return $i;
				}
			}
		}

		return (is_int($key) && ((0 <= $key) && ($key < sizeof($block)))) ? $key : false;

		$name = $blocks[$i];

			$block[$name] = array();
		}

		$block = &$block[$name]; // Now we can traverse the last block

			// If key is out of bounds, do not change anything
			if ($key > sizeof($block) || $key < 0)
			{
				return false;
			}