docs: def createTable(self, tableName, strFields) :
  		'creates a table and resturns the ursor, if the table already exists returns None'
  		if not self.tableExits(tableName) :
  			sql = 'CREATE TABLE %s ( %s)' % (tableName, strFields)
  			self.execute(sql)
  			self.tables.add(tableName)
  			return True
  		return False