diff DataTables-1.9.4/extras/FixedHeader/js/FixedHeader.js @ 0:ac5f9272033b draft

first upload

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DataTables-1.9.4/extras/FixedHeader/js/FixedHeader.js	Tue Jul 01 11:42:23 2014 -0400
@@ -0,0 +1,937 @@
+/*
+ * File:        FixedHeader.js
+ * Version:     2.0.6
+ * Description: "Fix" a header at the top of the table, so it scrolls with the table
+ * Author:      Allan Jardine (www.sprymedia.co.uk)
+ * Created:     Wed 16 Sep 2009 19:46:30 BST
+ * Language:    Javascript
+ * License:     GPL v2 or BSD 3 point style
+ * Project:     Just a little bit of fun - enjoy :-)
+ * Contact:     www.sprymedia.co.uk/contact
+ * 
+ * Copyright 2009-2012 Allan Jardine, all rights reserved.
+ *
+ * This source file is free software, under either the GPL v2 license or a
+ * BSD style license, available at:
+ *   http://datatables.net/license_gpl2
+ *   http://datatables.net/license_bsd
+ */
+
+/*
+ * Function: FixedHeader
+ * Purpose:  Provide 'fixed' header, footer and columns on an HTML table
+ * Returns:  object:FixedHeader - must be called with 'new'
+ * Inputs:   mixed:mTable - target table
+ *					   1. DataTable object - when using FixedHeader with DataTables, or
+ *					   2. HTML table node - when using FixedHeader without DataTables
+ *           object:oInit - initialisation settings, with the following properties (each optional)
+ *             bool:top -    fix the header (default true)
+ *             bool:bottom - fix the footer (default false)
+ *             bool:left -   fix the left most column (default false)
+ *             bool:right -  fix the right most column (default false)
+ *             int:zTop -    fixed header zIndex
+ *             int:zBottom - fixed footer zIndex
+ *             int:zLeft -   fixed left zIndex
+ *             int:zRight -  fixed right zIndex
+ */
+var FixedHeader = function ( mTable, oInit ) {
+	/* Sanity check - you just know it will happen */
+	if ( typeof this.fnInit != 'function' )
+	{
+		alert( "FixedHeader warning: FixedHeader must be initialised with the 'new' keyword." );
+		return;
+	}
+	
+	var that = this;
+	var oSettings = {
+		"aoCache": [],
+		"oSides": {
+			"top": true,
+			"bottom": false,
+			"left": false,
+			"right": false
+		},
+		"oZIndexes": {
+			"top": 104,
+			"bottom": 103,
+			"left": 102,
+			"right": 101
+		},
+		"oMes": {
+			"iTableWidth": 0,
+			"iTableHeight": 0,
+			"iTableLeft": 0,
+			"iTableRight": 0, /* note this is left+width, not actually "right" */
+			"iTableTop": 0,
+			"iTableBottom": 0 /* note this is top+height, not actually "bottom" */
+		},
+		"oOffset": {
+			"top": 0
+		},
+		"nTable": null,
+		"bUseAbsPos": false,
+		"bFooter": false
+	};
+	
+	/*
+	 * Function: fnGetSettings
+	 * Purpose:  Get the settings for this object
+	 * Returns:  object: - settings object
+	 * Inputs:   -
+	 */
+	this.fnGetSettings = function () {
+		return oSettings;
+	};
+	
+	/*
+	 * Function: fnUpdate
+	 * Purpose:  Update the positioning and copies of the fixed elements
+	 * Returns:  -
+	 * Inputs:   -
+	 */
+	this.fnUpdate = function () {
+		this._fnUpdateClones();
+		this._fnUpdatePositions();
+	};
+	
+	/*
+	 * Function: fnPosition
+	 * Purpose:  Update the positioning of the fixed elements
+	 * Returns:  -
+	 * Inputs:   -
+	 */
+	this.fnPosition = function () {
+		this._fnUpdatePositions();
+	};
+	
+	/* Let's do it */
+	this.fnInit( mTable, oInit );
+	
+	/* Store the instance on the DataTables object for easy access */
+	if ( typeof mTable.fnSettings == 'function' )
+	{
+		mTable._oPluginFixedHeader = this;
+	}
+};
+
+
+/*
+ * Variable: FixedHeader
+ * Purpose:  Prototype for FixedHeader
+ * Scope:    global
+ */
+FixedHeader.prototype = {
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Initialisation
+	 */
+	
+	/*
+	 * Function: fnInit
+	 * Purpose:  The "constructor"
+	 * Returns:  -
+	 * Inputs:   {as FixedHeader function}
+	 */
+	fnInit: function ( oTable, oInit )
+	{
+		var s = this.fnGetSettings();
+		var that = this;
+		
+		/* Record the user definable settings */
+		this.fnInitSettings( s, oInit );
+		
+		/* DataTables specific stuff */
+		if ( typeof oTable.fnSettings == 'function' )
+		{
+			if ( typeof oTable.fnVersionCheck == 'functon' &&
+			     oTable.fnVersionCheck( '1.6.0' ) !== true )
+			{
+				alert( "FixedHeader 2 required DataTables 1.6.0 or later. "+
+					"Please upgrade your DataTables installation" );
+				return;
+			}
+			
+			var oDtSettings = oTable.fnSettings();
+			
+			if ( oDtSettings.oScroll.sX != "" || oDtSettings.oScroll.sY != "" )
+			{
+				alert( "FixedHeader 2 is not supported with DataTables' scrolling mode at this time" );
+				return;
+			}
+			
+			s.nTable = oDtSettings.nTable;
+			oDtSettings.aoDrawCallback.push( {
+				"fn": function () {
+					FixedHeader.fnMeasure();
+					that._fnUpdateClones.call(that);
+					that._fnUpdatePositions.call(that);
+				},
+				"sName": "FixedHeader"
+			} );
+		}
+		else
+		{
+			s.nTable = oTable;
+		}
+		
+		s.bFooter = ($('>tfoot', s.nTable).length > 0) ? true : false;
+		
+		/* "Detect" browsers that don't support absolute positioing - or have bugs */
+		s.bUseAbsPos = (jQuery.browser.msie && (jQuery.browser.version=="6.0"||jQuery.browser.version=="7.0"));
+		
+		/* Add the 'sides' that are fixed */
+		if ( s.oSides.top )
+		{
+			s.aoCache.push( that._fnCloneTable( "fixedHeader", "FixedHeader_Header", that._fnCloneThead ) );
+		}
+		if ( s.oSides.bottom )
+		{
+			s.aoCache.push( that._fnCloneTable( "fixedFooter", "FixedHeader_Footer", that._fnCloneTfoot ) );
+		}
+		if ( s.oSides.left )
+		{
+			s.aoCache.push( that._fnCloneTable( "fixedLeft", "FixedHeader_Left", that._fnCloneTLeft ) );
+		}
+		if ( s.oSides.right )
+		{
+			s.aoCache.push( that._fnCloneTable( "fixedRight", "FixedHeader_Right", that._fnCloneTRight ) );
+		}
+		
+		/* Event listeners for window movement */
+		FixedHeader.afnScroll.push( function () {
+			that._fnUpdatePositions.call(that);
+		} );
+		
+		jQuery(window).resize( function () {
+			FixedHeader.fnMeasure();
+			that._fnUpdateClones.call(that);
+			that._fnUpdatePositions.call(that);
+		} );
+		
+		/* Get things right to start with */
+		FixedHeader.fnMeasure();
+		that._fnUpdateClones();
+		that._fnUpdatePositions();
+	},
+	
+	
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Support functions
+	 */
+	
+	/*
+	 * Function: fnInitSettings
+	 * Purpose:  Take the user's settings and copy them to our local store
+	 * Returns:  -
+	 * Inputs:   object:s - the local settings object
+	 *           object:oInit - the user's settings object
+	 */
+	fnInitSettings: function ( s, oInit )
+	{
+		if ( typeof oInit != 'undefined' )
+		{
+			if ( typeof oInit.top != 'undefined' ) {
+				s.oSides.top = oInit.top;
+			}
+			if ( typeof oInit.bottom != 'undefined' ) {
+				s.oSides.bottom = oInit.bottom;
+			}
+			if ( typeof oInit.left != 'undefined' ) {
+				s.oSides.left = oInit.left;
+			}
+			if ( typeof oInit.right != 'undefined' ) {
+				s.oSides.right = oInit.right;
+			}
+			
+			if ( typeof oInit.zTop != 'undefined' ) {
+				s.oZIndexes.top = oInit.zTop;
+			}
+			if ( typeof oInit.zBottom != 'undefined' ) {
+				s.oZIndexes.bottom = oInit.zBottom;
+			}
+			if ( typeof oInit.zLeft != 'undefined' ) {
+				s.oZIndexes.left = oInit.zLeft;
+			}
+			if ( typeof oInit.zRight != 'undefined' ) {
+				s.oZIndexes.right = oInit.zRight;
+			}
+
+			if ( typeof oInit.offsetTop != 'undefined' ) {
+				s.oOffset.top = oInit.offsetTop;
+			}
+		}
+		
+		/* Detect browsers which have poor position:fixed support so we can use absolute positions.
+		 * This is much slower since the position must be updated for each scroll, but widens
+		 * compatibility
+		 */
+		s.bUseAbsPos = (jQuery.browser.msie && 
+			(jQuery.browser.version=="6.0"||jQuery.browser.version=="7.0"));
+	},
+	
+	/*
+	 * Function: _fnCloneTable
+	 * Purpose:  Clone the table node and do basic initialisation
+	 * Returns:  -
+	 * Inputs:   -
+	 */
+	_fnCloneTable: function ( sType, sClass, fnClone )
+	{
+		var s = this.fnGetSettings();
+		var nCTable;
+		
+		/* We know that the table _MUST_ has a DIV wrapped around it, because this is simply how
+		 * DataTables works. Therefore, we can set this to be relatively position (if it is not
+		 * alreadu absolute, and use this as the base point for the cloned header
+		 */
+		if ( jQuery(s.nTable.parentNode).css('position') != "absolute" )
+		{
+			s.nTable.parentNode.style.position = "relative";
+		}
+		
+		/* Just a shallow clone will do - we only want the table node */
+		nCTable = s.nTable.cloneNode( false );
+		nCTable.removeAttribute( 'id' );
+		
+		var nDiv = document.createElement( 'div' );
+		nDiv.style.position = "absolute";
+		nDiv.style.top = "0px";
+		nDiv.style.left = "0px";
+		nDiv.className += " FixedHeader_Cloned "+sType+" "+sClass;
+		
+		/* Set the zIndexes */
+		if ( sType == "fixedHeader" )
+		{
+			nDiv.style.zIndex = s.oZIndexes.top;
+		}
+		if ( sType == "fixedFooter" )
+		{
+			nDiv.style.zIndex = s.oZIndexes.bottom;
+		}
+		if ( sType == "fixedLeft" )
+		{
+			nDiv.style.zIndex = s.oZIndexes.left;
+		}
+		else if ( sType == "fixedRight" )
+		{
+			nDiv.style.zIndex = s.oZIndexes.right;
+		}
+
+		/* remove margins since we are going to poistion it absolutely */
+		nCTable.style.margin = "0";
+		
+		/* Insert the newly cloned table into the DOM, on top of the "real" header */
+		nDiv.appendChild( nCTable );
+		document.body.appendChild( nDiv );
+		
+		return {
+			"nNode": nCTable,
+			"nWrapper": nDiv,
+			"sType": sType,
+			"sPosition": "",
+			"sTop": "",
+			"sLeft": "",
+			"fnClone": fnClone
+		};
+	},
+	
+	/*
+	 * Function: _fnUpdatePositions
+	 * Purpose:  Get the current positioning of the table in the DOM
+	 * Returns:  -
+	 * Inputs:   -
+	 */
+	_fnMeasure: function ()
+	{
+		var
+			s = this.fnGetSettings(),
+			m = s.oMes,
+			jqTable = jQuery(s.nTable),
+			oOffset = jqTable.offset(),
+			iParentScrollTop = this._fnSumScroll( s.nTable.parentNode, 'scrollTop' ),
+			iParentScrollLeft = this._fnSumScroll( s.nTable.parentNode, 'scrollLeft' );
+		
+		m.iTableWidth = jqTable.outerWidth();
+		m.iTableHeight = jqTable.outerHeight();
+		m.iTableLeft = oOffset.left + s.nTable.parentNode.scrollLeft;
+		m.iTableTop = oOffset.top + iParentScrollTop;
+		m.iTableRight = m.iTableLeft + m.iTableWidth;
+		m.iTableRight = FixedHeader.oDoc.iWidth - m.iTableLeft - m.iTableWidth;
+		m.iTableBottom = FixedHeader.oDoc.iHeight - m.iTableTop - m.iTableHeight;
+	},
+	
+	/*
+	 * Function: _fnSumScroll
+	 * Purpose:  Sum node parameters all the way to the top
+	 * Returns:  int: sum
+	 * Inputs:   node:n - node to consider
+	 *           string:side - scrollTop or scrollLeft
+	 */
+	_fnSumScroll: function ( n, side )
+	{
+		var i = n[side];
+		while ( n = n.parentNode )
+		{
+			if ( n.nodeName == 'HTML' || n.nodeName == 'BODY' )
+			{
+				break;
+			}
+			i = n[side];
+		}
+		return i;
+	},
+	
+	/*
+	 * Function: _fnUpdatePositions
+	 * Purpose:  Loop over the fixed elements for this table and update their positions
+	 * Returns:  -
+	 * Inputs:   -
+	 */
+	_fnUpdatePositions: function ()
+	{
+		var s = this.fnGetSettings();
+		this._fnMeasure();
+		
+		for ( var i=0, iLen=s.aoCache.length ; i<iLen ; i++ )
+		{
+			if ( s.aoCache[i].sType == "fixedHeader" )
+			{
+				this._fnScrollFixedHeader( s.aoCache[i] );
+			}
+			else if ( s.aoCache[i].sType == "fixedFooter" )
+			{
+				this._fnScrollFixedFooter( s.aoCache[i] );
+			}
+			else if ( s.aoCache[i].sType == "fixedLeft" )
+			{
+				this._fnScrollHorizontalLeft( s.aoCache[i] );
+			}
+			else
+			{
+				this._fnScrollHorizontalRight( s.aoCache[i] );
+			}
+		}
+	},
+	
+	/*
+	 * Function: _fnUpdateClones
+	 * Purpose:  Loop over the fixed elements for this table and call their cloning functions
+	 * Returns:  -
+	 * Inputs:   -
+	 */
+	_fnUpdateClones: function ()
+	{
+		var s = this.fnGetSettings();
+		for ( var i=0, iLen=s.aoCache.length ; i<iLen ; i++ )
+		{
+			s.aoCache[i].fnClone.call( this, s.aoCache[i] );
+		}
+	},
+	
+	
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Scrolling functions
+	 */
+	
+	/*
+	 * Function: _fnScrollHorizontalLeft
+	 * Purpose:  Update the positioning of the scrolling elements
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnScrollHorizontalRight: function ( oCache )
+	{
+		var
+			s = this.fnGetSettings(),
+			oMes = s.oMes,
+			oWin = FixedHeader.oWin,
+			oDoc = FixedHeader.oDoc,
+			nTable = oCache.nWrapper,
+			iFixedWidth = jQuery(nTable).outerWidth();
+		
+		if ( oWin.iScrollRight < oMes.iTableRight )
+		{
+			/* Fully right aligned */
+			this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft+oMes.iTableWidth-iFixedWidth)+"px", 'left', nTable.style );	
+		}
+		else if ( oMes.iTableLeft < oDoc.iWidth-oWin.iScrollRight-iFixedWidth )
+		{
+			/* Middle */
+			if ( s.bUseAbsPos )
+			{
+				this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', (oDoc.iWidth-oWin.iScrollRight-iFixedWidth)+"px", 'left', nTable.style );
+			}
+			else
+			{
+				this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop-oWin.iScrollTop)+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', (oWin.iWidth-iFixedWidth)+"px", 'left', nTable.style );
+			}	
+		}
+		else
+		{
+			/* Fully left aligned */
+			this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );	
+		}
+	},
+	
+	/*
+	 * Function: _fnScrollHorizontalLeft
+	 * Purpose:  Update the positioning of the scrolling elements
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnScrollHorizontalLeft: function ( oCache )
+	{
+		var
+			s = this.fnGetSettings(),
+			oMes = s.oMes,
+			oWin = FixedHeader.oWin,
+			oDoc = FixedHeader.oDoc,
+			nTable = oCache.nWrapper,
+			iCellWidth = jQuery(nTable).outerWidth();
+		
+		if ( oWin.iScrollLeft < oMes.iTableLeft )
+		{
+			/* Fully left align */
+			this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );	
+		}
+		else if ( oWin.iScrollLeft < oMes.iTableLeft+oMes.iTableWidth-iCellWidth )
+		{
+			/* Middle */
+			if ( s.bUseAbsPos )
+			{
+				this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', oWin.iScrollLeft+"px", 'left', nTable.style );
+			}
+			else
+			{
+				this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop-oWin.iScrollTop)+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', "0px", 'left', nTable.style );
+			}	
+		}
+		else
+		{
+			/* Fully right align */
+			this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft+oMes.iTableWidth-iCellWidth)+"px", 'left', nTable.style );	
+		}
+	},
+	
+	/*
+	 * Function: _fnScrollFixedFooter
+	 * Purpose:  Update the positioning of the scrolling elements
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnScrollFixedFooter: function ( oCache )
+	{
+		var
+			s = this.fnGetSettings(),
+			oMes = s.oMes,
+			oWin = FixedHeader.oWin,
+			oDoc = FixedHeader.oDoc,
+			nTable = oCache.nWrapper,
+			iTheadHeight = jQuery("thead", s.nTable).outerHeight(),
+			iCellHeight = jQuery(nTable).outerHeight();
+		
+		if ( oWin.iScrollBottom < oMes.iTableBottom )
+		{
+			/* Below */
+			this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+oMes.iTableHeight-iCellHeight)+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );	
+		}
+		else if ( oWin.iScrollBottom < oMes.iTableBottom+oMes.iTableHeight-iCellHeight-iTheadHeight )
+		{
+			/* Middle */
+			if ( s.bUseAbsPos )
+			{
+				this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', (oDoc.iHeight-oWin.iScrollBottom-iCellHeight)+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
+			}
+			else
+			{
+				this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', (oWin.iHeight-iCellHeight)+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft-oWin.iScrollLeft)+"px", 'left', nTable.style );	
+			}
+		}
+		else
+		{
+			/* Above */
+			this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+iCellHeight)+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );	
+		}
+	},
+	
+	/*
+	 * Function: _fnScrollFixedHeader
+	 * Purpose:  Update the positioning of the scrolling elements
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnScrollFixedHeader: function ( oCache )
+	{
+		var
+			s = this.fnGetSettings(),
+			oMes = s.oMes,
+			oWin = FixedHeader.oWin,
+			oDoc = FixedHeader.oDoc,
+			nTable = oCache.nWrapper,
+			iTbodyHeight = 0,
+			anTbodies = s.nTable.getElementsByTagName('tbody');
+
+		for (var i = 0; i < anTbodies.length; ++i) {
+			iTbodyHeight += anTbodies[i].offsetHeight;
+		}
+
+		if ( oMes.iTableTop > oWin.iScrollTop + s.oOffset.top )
+		{
+			/* Above the table */
+			this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
+		}
+		else if ( oWin.iScrollTop + s.oOffset.top > oMes.iTableTop+iTbodyHeight )
+		{
+			/* At the bottom of the table */
+			this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
+			this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+iTbodyHeight)+"px", 'top', nTable.style );
+			this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
+		}
+		else
+		{
+			/* In the middle of the table */
+			if ( s.bUseAbsPos )
+			{
+				this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', oWin.iScrollTop+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
+			}
+			else
+			{
+				this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
+				this._fnUpdateCache( oCache, 'sTop', s.oOffset.top+"px", 'top', nTable.style );
+				this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft-oWin.iScrollLeft)+"px", 'left', nTable.style );
+			}
+		}
+	},
+	
+	/*
+	 * Function: _fnUpdateCache
+	 * Purpose:  Check the cache and update cache and value if needed
+	 * Returns:  -
+	 * Inputs:   object:oCache - local cache object
+	 *           string:sCache - cache property
+	 *           string:sSet - value to set
+	 *           string:sProperty - object property to set
+	 *           object:oObj - object to update
+	 */
+	_fnUpdateCache: function ( oCache, sCache, sSet, sProperty, oObj )
+	{
+		if ( oCache[sCache] != sSet )
+		{
+			oObj[sProperty] = sSet;
+			oCache[sCache] = sSet;
+		}
+	},
+	
+	
+	
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Cloning functions
+	 */
+	
+	/*
+	 * Function: _fnCloneThead
+	 * Purpose:  Clone the thead element
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnCloneThead: function ( oCache )
+	{
+		var s = this.fnGetSettings();
+		var nTable = oCache.nNode;
+		
+		/* Set the wrapper width to match that of the cloned table */
+		oCache.nWrapper.style.width = jQuery(s.nTable).outerWidth()+"px";
+		
+		/* Remove any children the cloned table has */
+		while ( nTable.childNodes.length > 0 )
+		{
+			jQuery('thead th', nTable).unbind( 'click' );
+			nTable.removeChild( nTable.childNodes[0] );
+		}
+		
+		/* Clone the DataTables header */
+		var nThead = jQuery('thead', s.nTable).clone(true)[0];
+		nTable.appendChild( nThead );
+		
+		/* Copy the widths across - apparently a clone isn't good enough for this */
+		jQuery("thead>tr th", s.nTable).each( function (i) {
+			jQuery("thead>tr th:eq("+i+")", nTable).width( jQuery(this).width() );
+		} );
+		
+		jQuery("thead>tr td", s.nTable).each( function (i) {
+			jQuery("thead>tr td:eq("+i+")", nTable).width( jQuery(this).width() );
+		} );
+	},
+	
+	/*
+	 * Function: _fnCloneTfoot
+	 * Purpose:  Clone the tfoot element
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnCloneTfoot: function ( oCache )
+	{
+		var s = this.fnGetSettings();
+		var nTable = oCache.nNode;
+		
+		/* Set the wrapper width to match that of the cloned table */
+		oCache.nWrapper.style.width = jQuery(s.nTable).outerWidth()+"px";
+		
+		/* Remove any children the cloned table has */
+		while ( nTable.childNodes.length > 0 )
+		{
+			nTable.removeChild( nTable.childNodes[0] );
+		}
+		
+		/* Clone the DataTables footer */
+		var nTfoot = jQuery('tfoot', s.nTable).clone(true)[0];
+		nTable.appendChild( nTfoot );
+		
+		/* Copy the widths across - apparently a clone isn't good enough for this */
+		jQuery("tfoot:eq(0)>tr th", s.nTable).each( function (i) {
+			jQuery("tfoot:eq(0)>tr th:eq("+i+")", nTable).width( jQuery(this).width() );
+		} );
+		
+		jQuery("tfoot:eq(0)>tr td", s.nTable).each( function (i) {
+			jQuery("tfoot:eq(0)>tr th:eq("+i+")", nTable)[0].style.width( jQuery(this).width() );
+		} );
+	},
+	
+	/*
+	 * Function: _fnCloneTLeft
+	 * Purpose:  Clone the left column
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cached values for this fixed element
+	 */
+	_fnCloneTLeft: function ( oCache )
+	{
+		var s = this.fnGetSettings();
+		var nTable = oCache.nNode;
+		var nBody = $('tbody', s.nTable)[0];
+		var iCols = $('tbody tr:eq(0) td', s.nTable).length;
+		var bRubbishOldIE = ($.browser.msie && ($.browser.version == "6.0" || $.browser.version == "7.0"));
+		
+		/* Remove any children the cloned table has */
+		while ( nTable.childNodes.length > 0 )
+		{
+			nTable.removeChild( nTable.childNodes[0] );
+		}
+		
+		/* Is this the most efficient way to do this - it looks horrible... */
+		nTable.appendChild( jQuery("thead", s.nTable).clone(true)[0] );
+		nTable.appendChild( jQuery("tbody", s.nTable).clone(true)[0] );
+		if ( s.bFooter )
+		{
+			nTable.appendChild( jQuery("tfoot", s.nTable).clone(true)[0] );
+		}
+		
+		/* Remove unneeded cells */
+		$('thead tr', nTable).each( function (k) {
+			$('th:gt(0)', this).remove();
+		} );
+
+		$('tfoot tr', nTable).each( function (k) {
+			$('th:gt(0)', this).remove();
+		} );
+
+		$('tbody tr', nTable).each( function (k) {
+			$('td:gt(0)', this).remove();
+		} );
+		
+		this.fnEqualiseHeights( 'tbody', nBody.parentNode, nTable );
+		
+		var iWidth = jQuery('thead tr th:eq(0)', s.nTable).outerWidth();
+		nTable.style.width = iWidth+"px";
+		oCache.nWrapper.style.width = iWidth+"px";
+	},
+	
+	/*
+	 * Function: _fnCloneTRight
+	 * Purpose:  Clone the right most colun
+	 * Returns:  -
+	 * Inputs:   object:oCache - the cahced values for this fixed element
+	 */
+	_fnCloneTRight: function ( oCache )
+	{
+		var s = this.fnGetSettings();
+		var nBody = $('tbody', s.nTable)[0];
+		var nTable = oCache.nNode;
+		var iCols = jQuery('tbody tr:eq(0) td', s.nTable).length;
+		var bRubbishOldIE = ($.browser.msie && ($.browser.version == "6.0" || $.browser.version == "7.0"));
+		
+		/* Remove any children the cloned table has */
+		while ( nTable.childNodes.length > 0 )
+		{
+			nTable.removeChild( nTable.childNodes[0] );
+		}
+		
+		/* Is this the most efficient way to do this - it looks horrible... */
+		nTable.appendChild( jQuery("thead", s.nTable).clone(true)[0] );
+		nTable.appendChild( jQuery("tbody", s.nTable).clone(true)[0] );
+		if ( s.bFooter )
+		{
+			nTable.appendChild( jQuery("tfoot", s.nTable).clone(true)[0] );
+		}
+		jQuery('thead tr th:not(:nth-child('+iCols+'n))', nTable).remove();
+		jQuery('tfoot tr th:not(:nth-child('+iCols+'n))', nTable).remove();
+		
+		/* Remove unneeded cells */
+		$('tbody tr', nTable).each( function (k) {
+			$('td:lt('+(iCols-1)+')', this).remove();
+		} );
+		
+		this.fnEqualiseHeights( 'tbody', nBody.parentNode, nTable );
+		
+		var iWidth = jQuery('thead tr th:eq('+(iCols-1)+')', s.nTable).outerWidth();
+		nTable.style.width = iWidth+"px";
+		oCache.nWrapper.style.width = iWidth+"px";
+	},
+	
+	
+	/**
+	 * Equalise the heights of the rows in a given table node in a cross browser way. Note that this
+	 * is more or less lifted as is from FixedColumns
+	 *  @method  fnEqualiseHeights
+	 *  @returns void
+	 *  @param   {string} parent Node type - thead, tbody or tfoot
+	 *  @param   {element} original Original node to take the heights from
+	 *  @param   {element} clone Copy the heights to
+	 *  @private
+	 */
+	"fnEqualiseHeights": function ( parent, original, clone )
+	{
+		var that = this,
+			jqBoxHack = $(parent+' tr:eq(0)', original).children(':eq(0)'),
+			iBoxHack = jqBoxHack.outerHeight() - jqBoxHack.height(),
+			bRubbishOldIE = ($.browser.msie && ($.browser.version == "6.0" || $.browser.version == "7.0"));
+		
+		/* Remove cells which are not needed and copy the height from the original table */
+		$(parent+' tr', clone).each( function (k) {
+			/* Can we use some kind of object detection here?! This is very nasty - damn browsers */
+			if ( $.browser.mozilla || $.browser.opera )
+			{
+				$(this).children().height( $(parent+' tr:eq('+k+')', original).outerHeight() );
+			}
+			else
+			{
+				$(this).children().height( $(parent+' tr:eq('+k+')', original).outerHeight() - iBoxHack );
+			}
+			
+			if ( !bRubbishOldIE )
+			{
+				$(parent+' tr:eq('+k+')', original).height( $(parent+' tr:eq('+k+')', original).outerHeight() );		
+			}
+		} );
+	}
+};
+
+	
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Static properties and methods
+ *   We use these for speed! This information is common to all instances of FixedHeader, so no
+ * point if having them calculated and stored for each different instance.
+ */
+
+/*
+ * Variable: oWin
+ * Purpose:  Store information about the window positioning
+ * Scope:    FixedHeader
+ */
+FixedHeader.oWin = {
+	"iScrollTop": 0,
+	"iScrollRight": 0,
+	"iScrollBottom": 0,
+	"iScrollLeft": 0,
+	"iHeight": 0,
+	"iWidth": 0
+};
+
+/*
+ * Variable: oDoc
+ * Purpose:  Store information about the document size
+ * Scope:    FixedHeader
+ */
+FixedHeader.oDoc = {
+	"iHeight": 0,
+	"iWidth": 0
+};
+
+/*
+ * Variable: afnScroll
+ * Purpose:  Array of functions that are to be used for the scrolling components
+ * Scope:    FixedHeader
+ */
+FixedHeader.afnScroll = [];
+
+/*
+ * Function: fnMeasure
+ * Purpose:  Update the measurements for the window and document
+ * Returns:  -
+ * Inputs:   -
+ */
+FixedHeader.fnMeasure = function ()
+{
+	var
+		jqWin = jQuery(window),
+		jqDoc = jQuery(document),
+		oWin = FixedHeader.oWin,
+		oDoc = FixedHeader.oDoc;
+	
+	oDoc.iHeight = jqDoc.height();
+	oDoc.iWidth = jqDoc.width();
+	
+	oWin.iHeight = jqWin.height();
+	oWin.iWidth = jqWin.width();
+	oWin.iScrollTop = jqWin.scrollTop();
+	oWin.iScrollLeft = jqWin.scrollLeft();
+	oWin.iScrollRight = oDoc.iWidth - oWin.iScrollLeft - oWin.iWidth;
+	oWin.iScrollBottom = oDoc.iHeight - oWin.iScrollTop - oWin.iHeight;
+};
+
+
+FixedHeader.VERSION = "2.0.6";
+FixedHeader.prototype.VERSION = FixedHeader.VERSION;
+
+	
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Global processing
+ */
+
+/*
+ * Just one 'scroll' event handler in FixedHeader, which calls the required components. This is
+ * done as an optimisation, to reduce calculation and proagation time
+ */
+jQuery(window).scroll( function () {
+	FixedHeader.fnMeasure();
+	for ( var i=0, iLen=FixedHeader.afnScroll.length ; i<iLen ; i++ )
+	{
+		FixedHeader.afnScroll[i]();
+	}
+} );