public function insert($data)
	{
		//var_dump($data);
		unset($this->_error);
		if(is_array($data))
		{
			$fields = '';
			$values = '';
			reset($data);
			for($counter = 0, $maxIndex = count($data), $valid = true; $counter < $maxIndex && $valid == true; $counter ++)
			{
				$elementKey = key($data);
				$elementKey = $this->_db->escape($elementKey);
				$valid = in_array($elementKey, $this->_fields);
				if($valid == true)
				{
                    $element = $data[$elementKey];
                    $element = $this->_db->escape($element);
					if(is_object($element) == true)
					{
						$valid = false;
						$this->_error = 'field: '.$elementKey.'is an object (this method just accept strings)';
					}
					else
					{
						if(is_numeric($element) == false)
							$values .= '\''.$element.'\'';
						else
							$values .= $element;
						$fields .= $elementKey;
						if(($counter + 1) < $maxIndex)
						{
							$fields .= ',';
							$values .= ',';
						}
						next($data);
					}
				}
				else
				{
					$this->_error = 'field: '.$elementKey.' is not defined in '.$this->_tableName;
				}
			}
			if($valid == true)
			{
				$this->_query = 'INSERT INTO '.$this->_tableName.'('.$fields.') VALUES('.$values.')';
				if($this->_db->execute($this->_query) !== false)
				{
					return $this->_db->insertId();
				}
				else
				{
					$this->_error = $this->_db->errorStr();
				}
			}
		}
		return false;
	}