function _fnSaveState ( settings )
	{
		if ( !settings.oFeatures.bStateSave || settings.bDestroying )
		{
			return;
		}
	
		/* Store the interesting variables */
		var state = {
			time:    +new Date(),
			start:   settings._iDisplayStart,
			length:  settings._iDisplayLength,
			order:   $.extend( true, [], settings.aaSorting ),
			search:  _fnSearchToCamel( settings.oPreviousSearch ),
			columns: $.map( settings.aoColumns, function ( col, i ) {
				return {
					visible: col.bVisible,
					search: _fnSearchToCamel( settings.aoPreSearchCols[i] )
				};
			} )
		};
	
		_fnCallbackFire( settings, "aoStateSaveParams", 'stateSaveParams', [settings, state] );
	
		settings.oSavedState = state;
		settings.fnStateSaveCallback.call( settings.oInstance, settings, state );
	}
Save the state of a table
 @param {object} oSettings dataTables settings object
 @memberof DataTable#oApi