function _fnFeatureHtmlLength ( settings )
	{
		var
			classes  = settings.oClasses,
			tableId  = settings.sTableId,
			menu     = settings.aLengthMenu,
			d2       = $.isArray( menu[0] ),
			lengths  = d2 ? menu[0] : menu,
			language = d2 ? menu[1] : menu;
	
		var select = $('<select/>', {
			'name':          tableId+'_length',
			'aria-controls': tableId,
			'class':         classes.sLengthSelect
		} );
	
		for ( var i=0, ien=lengths.length ; i<ien ; i++ ) {
			select[0][ i ] = new Option(
				typeof language[i] === 'number' ?
					settings.fnFormatNumber( language[i] ) :
					language[i],
				lengths[i]
			);
		}
	
		var div = $('<div><label/></div>').addClass( classes.sLength );
		if ( ! settings.aanFeatures.l ) {
			div[0].id = tableId+'_length';
		}
	
		div.children().append(
			settings.oLanguage.sLengthMenu.replace( '_MENU_', select[0].outerHTML )
		);
	
		// Can't use `select` variable as user might provide their own and the
		// reference is broken by the use of outerHTML
		$('select', div)
			.val( settings._iDisplayLength )
			.on( 'change.DT', function(e) {
				_fnLengthChange( settings, $(this).val() );
				_fnDraw( settings );
			} );
	
		// Update node value whenever anything changes the table's length
		$(settings.nTable).on( 'length.dt.DT', function (e, s, len) {
			if ( settings === s ) {
				$('select', div).val( len );
			}
		} );
	
		return div[0];
	}
Generate the node required for user display length changing
 @param {object} settings dataTables settings object
 @returns {node} Display length feature node
 @memberof DataTable#oApi