function _fnSettingsFromNode ( table )
	{
		var settings = DataTable.settings;
		var idx = $.inArray( table, _pluck( settings, 'nTable' ) );
	
		return idx !== -1 ?
			settings[ idx ] :
			null;
	}
Return the settings object for a particular table
 @param {node} table table we are using as a dataTable
 @returns {object} Settings object - or null if not found
 @memberof DataTable#oApi