/*! AutoFill 1.2.1
   * ©2008-2014 SpryMedia Ltd - datatables.net/license
   */
  
  /**
   * @summary     AutoFill
   * @description Add Excel like click and drag auto-fill options to DataTables
   * @version     1.2.1
   * @file        dataTables.autoFill.js
   * @author      SpryMedia Ltd (www.sprymedia.co.uk)
   * @contact     www.sprymedia.co.uk/contact
   * @copyright   Copyright 2010-2014 SpryMedia Ltd.
   *
   * This source file is free software, available under the following license:
   *   MIT license - http://datatables.net/license/mit
   *
   * This source file is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
   *
   * For details please refer to: http://www.datatables.net
   */
  
  (function( window, document, undefined ) {
  
  var factory = function( $, DataTable ) {
  "use strict";
  
  /** 
   * AutoFill provides Excel like auto-fill features for a DataTable
   *
   * @class AutoFill
   * @constructor
   * @param {object} oTD DataTables settings object
   * @param {object} oConfig Configuration object for AutoFill
   */
  var AutoFill = function( oDT, oConfig )
  {
  	/* Sanity check that we are a new instance */
  	if ( ! (this instanceof AutoFill) ) {
  		throw( "Warning: AutoFill must be initialised with the keyword 'new'" );
  	}
  
  	if ( ! $.fn.dataTableExt.fnVersionCheck('1.7.0') ) {
  		throw( "Warning: AutoFill requires DataTables 1.7 or greater");
  	}
  
  
  	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  	 * Public class variables
  	 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
  	this.c = {};
  
  	/**
  	 * @namespace Settings object which contains customisable information for AutoFill instance
  	 */
  	this.s = {
  		/**
  		 * @namespace Cached information about the little dragging icon (the filler)
  		 */
  		"filler": {
  			"height": 0,
  			"width": 0
  		},
  
  		/**
  		 * @namespace Cached information about the border display
  		 */
  		"border": {
  			"width": 2
  		},
  
  		/**
  		 * @namespace Store for live information for the current drag
  		 */
  		"drag": {
  			"startX": -1,
  			"startY": -1,
  			"startTd": null,
  			"endTd": null,
  			"dragging": false
  		},
  
  		/**
  		 * @namespace Data cache for information that we need for scrolling the screen when we near
  		 *   the edges
  		 */
  		"screen": {
  			"interval": null,
  			"y": 0,
  			"height": 0,
  			"scrollTop": 0
  		},
  
  		/**
  		 * @namespace Data cache for the position of the DataTables scrolling element (when scrolling
  		 *   is enabled)
  		 */
  		"scroller": {
  			"top": 0,
  			"bottom": 0
  		},
  
  		/**
  		 * @namespace Information stored for each column. An array of objects
  		 */
  		"columns": []
  	};
  
  
  	/**
  	 * @namespace Common and useful DOM elements for the class instance
  	 */
  	this.dom = {
  		"table": null,
  		"filler": null,
  		"borderTop": null,
  		"borderRight": null,
  		"borderBottom": null,
  		"borderLeft": null,
  		"currentTarget": null
  	};
  
  
  
  	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  	 * Public class methods
  	 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
  	/**
  	 * Retreieve the settings object from an instance
  	 *  @method fnSettings
  	 *  @returns {object} AutoFill settings object
  	 */
  	this.fnSettings = function () {
  		return this.s;
  	};
  
  
  	/* Constructor logic */
  	this._fnInit( oDT, oConfig );
  	return this;
  };
  
  
  
  AutoFill.prototype = {
  	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  	 * Private methods (they are of course public in JS, but recommended as private)
  	 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
  	/**
  	 * Initialisation
  	 *  @method _fnInit
  	 *  @param {object} dt DataTables settings object
  	 *  @param {object} config Configuration object for AutoFill
  	 *  @returns void
  	 */
  	"_fnInit": function ( dt, config )
  	{
  		var
  			that = this,
  			i, iLen;
  
  		// Use DataTables API to get the settings allowing selectors, instances
  		// etc to be used, or for backwards compatibility get from the old
  		// fnSettings method
  		this.s.dt = DataTable.Api ?
  			new DataTable.Api( dt ).settings()[0] :
  			dt.fnSettings();
  		this.s.init = config || {};
  		this.dom.table = this.s.dt.nTable;
  
  		$.extend( true, this.c, AutoFill.defaults, config );
  
  		/* Add and configure the columns */
  		this._initColumns();
  
  		/* Auto Fill click and drag icon */
  		var filler = $('<div/>', {
  				'class': 'AutoFill_filler'
  			} )
  			.appendTo( 'body' );
  		this.dom.filler = filler[0];
  
  		// Get the height / width of the click element
  		this.s.filler.height = filler.height();
  		this.s.filler.width = filler.width();
  		filler[0].style.display = "none";
  
  		/* Border display - one div for each side. We can't just use a single
  		 * one with a border, as we want the events to effectively pass through
  		 * the transparent bit of the box
  		 */
  		var border;
  		var appender = document.body;
  		if ( that.s.dt.oScroll.sY !== "" ) {
  			that.s.dt.nTable.parentNode.style.position = "relative";
  			appender = that.s.dt.nTable.parentNode;
  		}
  
  		border = $('<div/>', {
  			"class": "AutoFill_border"
  		} );
  		this.dom.borderTop    = border.clone().appendTo( appender )[0];
  		this.dom.borderRight  = border.clone().appendTo( appender )[0];
  		this.dom.borderBottom = border.clone().appendTo( appender )[0];
  		this.dom.borderLeft   = border.clone().appendTo( appender )[0];
  
  		/* Events */
  		filler.on( 'mousedown.DTAF', function (e) {
  			this.onselectstart = function() { return false; };
  			that._fnFillerDragStart.call( that, e );
  			return false;
  		} );
  
  		$('tbody', this.dom.table).on(
  			'mouseover.DTAF mouseout.DTAF',
  			'>tr>td, >tr>th',
  			function (e) {
  				that._fnFillerDisplay.call( that, e );
  			}
  		);
  
  		$(this.dom.table).on( 'destroy.dt.DTAF', function () {
  			filler.off( 'mousedown.DTAF' ).remove();
  			$('tbody', this.dom.table).off( 'mouseover.DTAF mouseout.DTAF' );
  		} );
  	},
  
  
  	_initColumns: function ( )
  	{
  		var that = this;
  		var i, ien;
  		var dt = this.s.dt;
  		var config = this.s.init;
  
  		for ( i=0, ien=dt.aoColumns.length ; i<ien ; i++ ) {
  			this.s.columns[i] = $.extend( true, {}, AutoFill.defaults.column );
  		}
  
  		dt.oApi._fnApplyColumnDefs(
  			dt,
  			config.aoColumnDefs || config.columnDefs,
  			config.aoColumns || config.columns,
  			function (colIdx, def) {
  				that._fnColumnOptions( colIdx, def );
  			}
  		);
  
  		// For columns which don't have read, write, step functions defined,
  		// use the default ones
  		for ( i=0, ien=dt.aoColumns.length ; i<ien ; i++ ) {
  			var column = this.s.columns[i];
  
  			if ( ! column.read ) {
  				column.read = this._fnReadCell;
  			}
  			if ( ! column.write ) {
  				column.read = this._fnWriteCell;
  			}
  			if ( ! column.step ) {
  				column.read = this._fnStep;
  			}
  		}
  	},
  
  
  	"_fnColumnOptions": function ( i, opts )
  	{
  		var column = this.s.columns[ i ];
  		var set = function ( outProp, inProp ) {
  			if ( opts[ inProp[0] ] !== undefined ) {
  				column[ outProp ] = opts[ inProp[0] ];
  			}
  			if ( opts[ inProp[1] ] !== undefined ) {
  				column[ outProp ] = opts[ inProp[1] ];
  			}
  		};
  
  		// Compatibility with the old Hungarian style of notation
  		set( 'enable',    ['bEnable',     'enable'] );
  		set( 'read',      ['fnRead',      'read'] );
  		set( 'write',     ['fnWrite',     'write'] );
  		set( 'step',      ['fnStep',      'step'] );
  		set( 'increment', ['bIncrement',  'increment'] );
  	},
  
  
  	/**
  	 * Find out the coordinates of a given TD cell in a table
  	 *  @method  _fnTargetCoords
  	 *  @param   {Node} nTd
  	 *  @returns {Object} x and y properties, for the position of the cell in the tables DOM
  	 */
  	"_fnTargetCoords": function ( nTd )
  	{
  		var nTr = $(nTd).parents('tr')[0];
  		var position = this.s.dt.oInstance.fnGetPosition( nTd );
  
  		return {
  			"x":      $('td', nTr).index(nTd),
  			"y":      $('tr', nTr.parentNode).index(nTr),
  			"row":    position[0],
  			"column": position[2]
  		};
  	},
  
  
  	/**
  	 * Display the border around one or more cells (from start to end)
  	 *  @method  _fnUpdateBorder
  	 *  @param   {Node} nStart Starting cell
  	 *  @param   {Node} nEnd Ending cell
  	 *  @returns void
  	 */
  	"_fnUpdateBorder": function ( nStart, nEnd )
  	{
  		var
  			border = this.s.border.width,
  			offsetStart = $(nStart).offset(),
  			offsetEnd = $(nEnd).offset(),
  			x1 = offsetStart.left - border,
  			x2 = offsetEnd.left + $(nEnd).outerWidth(),
  			y1 = offsetStart.top - border,
  			y2 = offsetEnd.top + $(nEnd).outerHeight(),
  			width = offsetEnd.left + $(nEnd).outerWidth() - offsetStart.left + (2*border),
  			height = offsetEnd.top + $(nEnd).outerHeight() - offsetStart.top + (2*border),
  			oStyle;
  
  		// Recalculate start and end (when dragging "backwards")  
  		if( offsetStart.left > offsetEnd.left) {
  			x1 = offsetEnd.left - border;
  			x2 = offsetStart.left + $(nStart).outerWidth();
  			width = offsetStart.left + $(nStart).outerWidth() - offsetEnd.left + (2*border);
  		}
  
  		if ( this.s.dt.oScroll.sY !== "" )
  		{
  			/* The border elements are inside the DT scroller - so position relative to that */
  			var
  				offsetScroll = $(this.s.dt.nTable.parentNode).offset(),
  				scrollTop = $(this.s.dt.nTable.parentNode).scrollTop(),
  				scrollLeft = $(this.s.dt.nTable.parentNode).scrollLeft();
  
  			x1 -= offsetScroll.left - scrollLeft;
  			x2 -= offsetScroll.left - scrollLeft;
  			y1 -= offsetScroll.top - scrollTop;
  			y2 -= offsetScroll.top - scrollTop;
  		}
  
  		/* Top */
  		oStyle = this.dom.borderTop.style;
  		oStyle.top = y1+"px";
  		oStyle.left = x1+"px";
  		oStyle.height = this.s.border.width+"px";
  		oStyle.width = width+"px";
  
  		/* Bottom */
  		oStyle = this.dom.borderBottom.style;
  		oStyle.top = y2+"px";
  		oStyle.left = x1+"px";
  		oStyle.height = this.s.border.width+"px";
  		oStyle.width = width+"px";
  
  		/* Left */
  		oStyle = this.dom.borderLeft.style;
  		oStyle.top = y1+"px";
  		oStyle.left = x1+"px";
  		oStyle.height = height+"px";
  		oStyle.width = this.s.border.width+"px";
  
  		/* Right */
  		oStyle = this.dom.borderRight.style;
  		oStyle.top = y1+"px";
  		oStyle.left = x2+"px";
  		oStyle.height = height+"px";
  		oStyle.width = this.s.border.width+"px";
  	},
  
  
  	/**
  	 * Mouse down event handler for starting a drag
  	 *  @method  _fnFillerDragStart
  	 *  @param   {Object} e Event object
  	 *  @returns void
  	 */
  	"_fnFillerDragStart": function (e)
  	{
  		var that = this;
  		var startingTd = this.dom.currentTarget;
  
  		this.s.drag.dragging = true;
  
  		that.dom.borderTop.style.display = "block";
  		that.dom.borderRight.style.display = "block";
  		that.dom.borderBottom.style.display = "block";
  		that.dom.borderLeft.style.display = "block";
  
  		var coords = this._fnTargetCoords( startingTd );
  		this.s.drag.startX = coords.x;
  		this.s.drag.startY = coords.y;
  
  		this.s.drag.startTd = startingTd;
  		this.s.drag.endTd = startingTd;
  
  		this._fnUpdateBorder( startingTd, startingTd );
  
  		$(document).bind('mousemove.AutoFill', function (e) {
  			that._fnFillerDragMove.call( that, e );
  		} );
  
  		$(document).bind('mouseup.AutoFill', function (e) {
  			that._fnFillerFinish.call( that, e );
  		} );
  
  		/* Scrolling information cache */
  		this.s.screen.y = e.pageY;
  		this.s.screen.height = $(window).height();
  		this.s.screen.scrollTop = $(document).scrollTop();
  
  		if ( this.s.dt.oScroll.sY !== "" )
  		{
  			this.s.scroller.top = $(this.s.dt.nTable.parentNode).offset().top;
  			this.s.scroller.bottom = this.s.scroller.top + $(this.s.dt.nTable.parentNode).height();
  		}
  
  		/* Scrolling handler - we set an interval (which is cancelled on mouse up) which will fire
  		 * regularly and see if we need to do any scrolling
  		 */
  		this.s.screen.interval = setInterval( function () {
  			var iScrollTop = $(document).scrollTop();
  			var iScrollDelta = iScrollTop - that.s.screen.scrollTop;
  			that.s.screen.y += iScrollDelta;
  
  			if ( that.s.screen.height - that.s.screen.y + iScrollTop < 50 )
  			{
  				$('html, body').animate( {
  					"scrollTop": iScrollTop + 50
  				}, 240, 'linear' );
  			}
  			else if ( that.s.screen.y - iScrollTop < 50 )
  			{
  				$('html, body').animate( {
  					"scrollTop": iScrollTop - 50
  				}, 240, 'linear' );
  			}
  
  			if ( that.s.dt.oScroll.sY !== "" )
  			{
  				if ( that.s.screen.y > that.s.scroller.bottom - 50 )
  				{
  					$(that.s.dt.nTable.parentNode).animate( {
  						"scrollTop": $(that.s.dt.nTable.parentNode).scrollTop() + 50
  					}, 240, 'linear' );
  				}
  				else if ( that.s.screen.y < that.s.scroller.top + 50 )
  				{
  					$(that.s.dt.nTable.parentNode).animate( {
  						"scrollTop": $(that.s.dt.nTable.parentNode).scrollTop() - 50
  					}, 240, 'linear' );
  				}
  			}
  		}, 250 );
  	},
  
  
  	/**
  	 * Mouse move event handler for during a move. See if we want to update the display based on the
  	 * new cursor position
  	 *  @method  _fnFillerDragMove
  	 *  @param   {Object} e Event object
  	 *  @returns void
  	 */
  	"_fnFillerDragMove": function (e)
  	{
  		if ( e.target && e.target.nodeName.toUpperCase() == "TD" &&
  			 e.target != this.s.drag.endTd )
  		{
  			var coords = this._fnTargetCoords( e.target );
  
  			if ( this.c.mode == "y" && coords.x != this.s.drag.startX )
  			{
  				e.target = $('tbody>tr:eq('+coords.y+')>td:eq('+this.s.drag.startX+')', this.dom.table)[0];
  			}
  			if ( this.c.mode == "x" && coords.y != this.s.drag.startY )
  			{
  				e.target = $('tbody>tr:eq('+this.s.drag.startY+')>td:eq('+coords.x+')', this.dom.table)[0];
  			}
  
  			if ( this.c.mode == "either")
  			{
  				if(coords.x != this.s.drag.startX )
  				{
  					e.target = $('tbody>tr:eq('+this.s.drag.startY+')>td:eq('+coords.x+')', this.dom.table)[0];
  				}
  				else if ( coords.y != this.s.drag.startY ) {
  					e.target = $('tbody>tr:eq('+coords.y+')>td:eq('+this.s.drag.startX+')', this.dom.table)[0];
  				}
  			}
  
  			// update coords
  			if ( this.c.mode !== "both" ) {
  				coords = this._fnTargetCoords( e.target );
  			}
  
  			var drag = this.s.drag;
  			drag.endTd = e.target;
  
  			if ( coords.y >= this.s.drag.startY ) {
  				this._fnUpdateBorder( drag.startTd, drag.endTd );
  			}
  			else {
  				this._fnUpdateBorder( drag.endTd, drag.startTd );
  			}
  			this._fnFillerPosition( e.target );
  		}
  
  		/* Update the screen information so we can perform scrolling */
  		this.s.screen.y = e.pageY;
  		this.s.screen.scrollTop = $(document).scrollTop();
  
  		if ( this.s.dt.oScroll.sY !== "" )
  		{
  			this.s.scroller.scrollTop = $(this.s.dt.nTable.parentNode).scrollTop();
  			this.s.scroller.top = $(this.s.dt.nTable.parentNode).offset().top;
  			this.s.scroller.bottom = this.s.scroller.top + $(this.s.dt.nTable.parentNode).height();
  		}
  	},
  
  
  	/**
  	 * Mouse release handler - end the drag and take action to update the cells with the needed values
  	 *  @method  _fnFillerFinish
  	 *  @param   {Object} e Event object
  	 *  @returns void
  	 */
  	"_fnFillerFinish": function (e)
  	{
  		var that = this, i, iLen, j;
  
  		$(document).unbind('mousemove.AutoFill mouseup.AutoFill');
  
  		this.dom.borderTop.style.display = "none";
  		this.dom.borderRight.style.display = "none";
  		this.dom.borderBottom.style.display = "none";
  		this.dom.borderLeft.style.display = "none";
  
  		this.s.drag.dragging = false;
  
  		clearInterval( this.s.screen.interval );
  
  		var cells = [];
  		var table = this.dom.table;
  		var coordsStart = this._fnTargetCoords( this.s.drag.startTd );
  		var coordsEnd = this._fnTargetCoords( this.s.drag.endTd );
  		var columnIndex = function ( visIdx ) {
  			return that.s.dt.oApi._fnVisibleToColumnIndex( that.s.dt, visIdx );
  		};
  
  		// xxx - urgh - there must be a way of reducing this...
  		if ( coordsStart.y <= coordsEnd.y ) {
  			for ( i=coordsStart.y ; i<=coordsEnd.y ; i++ ) {
  				if ( coordsStart.x <= coordsEnd.x ) {
  					for ( j=coordsStart.x ; j<=coordsEnd.x ; j++ ) {
  						cells.push( {
  							node:   $('tbody>tr:eq('+i+')>td:eq('+j+')', table)[0],
  							x:      j - coordsStart.x,
  							y:      i - coordsStart.y,
  							colIdx: columnIndex( j )
  						} );
  					}
  				}
  				else {
  					for ( j=coordsStart.x ; j>=coordsEnd.x ; j-- ) {
  						cells.push( {
  							node:   $('tbody>tr:eq('+i+')>td:eq('+j+')', table)[0],
  							x:      j - coordsStart.x,
  							y:      i - coordsStart.y,
  							colIdx: columnIndex( j )
  						} );
  					}
  				}
  			}
  		}
  		else {
  			for ( i=coordsStart.y ; i>=coordsEnd.y ; i-- ) {
  				if ( coordsStart.x <= coordsEnd.x ) {
  					for ( j=coordsStart.x ; j<=coordsEnd.x ; j++ ) {
  						cells.push( {
  							node:   $('tbody>tr:eq('+i+')>td:eq('+j+')', table)[0],
  							x:      j - coordsStart.x,
  							y:      i - coordsStart.y,
  							colIdx: columnIndex( j )
  						} );
  					}
  				}
  				else {
  					for ( j=coordsStart.x ; j>=coordsEnd.x ; j-- ) {
  						cells.push( {
  							node:   $('tbody>tr:eq('+i+')>td:eq('+j+')', table)[0],
  							x:      coordsStart.x - j,
  							y:      coordsStart.y - i,
  							colIdx: columnIndex( j )
  						} );
  					}
  				}
  			}
  		}
  
  		// An auto-fill requires 2 or more cells
  		if ( cells.length <= 1 ) {
  			return;
  		}
  
  		var edited = [];
  		var previous;
  
  		for ( i=0, iLen=cells.length ; i<iLen ; i++ ) {
  			var cell      = cells[i];
  			var column    = this.s.columns[ cell.colIdx ];
  			var read      = column.read.call( column, cell.node );
  			var stepValue = column.step.call( column, cell.node, read, previous, i, cell.x, cell.y );
  
  			column.write.call( column, cell.node, stepValue );
  
  			previous = stepValue;
  			edited.push( {
  				cell:     cell,
  				colIdx:   cell.colIdx,
  				newValue: stepValue,
  				oldValue: read
  			} );
  		}
  
  		if ( this.c.complete !== null ) {
  			this.c.complete.call( this, edited );
  		}
  
  		// In 1.10 we can do a static draw
  		if ( DataTable.Api ) {
  			new DataTable.Api( this.s.dt ).draw( false );
  		}
  		else {
  			this.s.dt.oInstance.fnDraw();
  		}
  	},
  
  
  	/**
  	 * Display the drag handle on mouse over cell
  	 *  @method  _fnFillerDisplay
  	 *  @param   {Object} e Event object
  	 *  @returns void
  	 */
  	"_fnFillerDisplay": function (e)
  	{
  		var filler = this.dom.filler;
  
  		/* Don't display automatically when dragging */
  		if ( this.s.drag.dragging)
  		{
  			return;
  		}
  
  		/* Check that we are allowed to AutoFill this column or not */
  		var nTd = (e.target.nodeName.toLowerCase() == 'td') ? e.target : $(e.target).parents('td')[0];
  		var iX = this._fnTargetCoords(nTd).column;
  		if ( !this.s.columns[iX].enable )
  		{
  			filler.style.display = "none";
  			return;
  		}
  
  		if (e.type == 'mouseover')
  		{
  			this.dom.currentTarget = nTd;
  			this._fnFillerPosition( nTd );
  
  			filler.style.display = "block";
  		}
  		else if ( !e.relatedTarget || !e.relatedTarget.className.match(/AutoFill/) )
  		{
  			filler.style.display = "none";
  		}
  	},
  
  
  	/**
  	 * Position the filler icon over a cell
  	 *  @method  _fnFillerPosition
  	 *  @param   {Node} nTd Cell to position filler icon over
  	 *  @returns void
  	 */
  	"_fnFillerPosition": function ( nTd )
  	{
  		var offset = $(nTd).offset();
  		var filler = this.dom.filler;
  		filler.style.top = (offset.top - (this.s.filler.height / 2)-1 + $(nTd).outerHeight())+"px";
  		filler.style.left = (offset.left - (this.s.filler.width / 2)-1 + $(nTd).outerWidth())+"px";
  	}
  };
  
  
  // Alias for access
  DataTable.AutoFill = AutoFill;
  DataTable.AutoFill = AutoFill;
  
  
  
  /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   * Constants
   * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  
  /**
   * AutoFill version
   *  @constant  version
   *  @type      String
   *  @default   See code
   */
  AutoFill.version = "1.2.1";
  
  
  /**
   * AutoFill defaults
   *  @namespace
   */
  AutoFill.defaults = {
  	/**
  	 * Mode for dragging (restrict to y-axis only, x-axis only, either one or none):
  	 *
  	 *  * `y`      - y-axis only (default)
  	 *  * `x`      - x-axis only
  	 *  * `either` - either one, but not both axis at the same time
  	 *  * `both`   - multiple cells allowed
  	 *
  	 * @type {string}
  	 * @default `y`
  	 */
  	mode: 'y',
  
  	complete: null,
  
  	/**
  	 * Column definition defaults
  	 *  @namespace
  	 */
  	column: {
  		/**
  		 * If AutoFill should be enabled on this column
  		 *
  		 * @type {boolean}
  		 * @default true
  		 */
  		enable: true,
  
  		/**
  		 * Allow automatic increment / decrement on this column if a number
  		 * is found.
  		 *
  		 * @type {boolean}
  		 * @default true
  		 */
  		increment: true,
  
  		/**
  		 * Cell read function
  		 *
  		 * Default function will simply read the value from the HTML of the
  		 * cell.
  		 *
  		 * @type   {function}
  		 * @param  {node} cell `th` / `td` element to read the value from
  		 * @return {string}    Data that has been read
  		 */
  		read: function ( cell ) {
  			return $(cell).html();
  		},
  
  		/**
  		 * Cell write function
  		 *
  		 * Default function will simply write to the HTML and tell the DataTable
  		 * to update.
  		 *
  		 * @type   {function}
  		 * @param  {node} cell `th` / `td` element to write the value to
  		 * @return {string}    Data two write
  		 */
  		write: function ( cell, val ) {
  			var table = $(cell).parents('table');
  			if ( DataTable.Api ) {
  				// 1.10
  				table.DataTable().cell( cell ).data( val );
  			}
  			else {
  				// 1.9
  				var dt = table.dataTable();
  				var pos = dt.fnGetPosition( cell );
  				dt.fnUpdate( val, pos[0], pos[2], false );
  			}
  		},
  
  		/**
  		 * Step function. This provides the ability to customise how the values
  		 * are incremented.
  		 *
  		 * @param  {node} cell `th` / `td` element that is being operated upon
  		 * @param  {string} read Cell value from `read` function
  		 * @param  {string} last Value of the previous cell
  		 * @param  {integer} i Loop counter
  		 * @param  {integer} x Cell x-position in the current auto-fill. The
  		 *   starting cell is coordinate 0 regardless of its physical position
  		 *   in the DataTable.
  		 * @param  {integer} y Cell y-position in the current auto-fill. The
  		 *   starting cell is coordinate 0 regardless of its physical position
  		 *   in the DataTable.
  		 * @return {string} Value to write
  		 */
  		step: function ( cell, read, last, i, x, y ) {
  			// Increment a number if it is found
  			var re = /(\-?\d+)/;
  			var match = this.increment && last ? last.match(re) : null;
  			if ( match ) {
  				return last.replace( re, parseInt(match[1],10) + (x<0 || y<0 ? -1 : 1) );
  			}
  			return last === undefined ?
  				read :
  				last;
  		}
  	}
  };
  
  return AutoFill;
  };
  
  
  // Define as an AMD module if possible
  if ( typeof define === 'function' && define.amd ) {
  	define( ['jquery', 'datatables'], factory );
  }
  else if ( typeof exports === 'object' ) {
      // Node/CommonJS
      factory( require('jquery'), require('datatables') );
  }
  else if ( jQuery && !jQuery.fn.dataTable.AutoFill ) {
  	// Otherwise simply initialise as normal, stopping multiple evaluation
  	factory( jQuery, jQuery.fn.dataTable );
  }
  
  
  }(window, document));