WB 2.08.x

/**

 * Stupid Fixed Header 1.0.1 - jQuery plugins to create a fixed headers

 *

 * Require: jQuery 1.2.6

 * Author: Jacky See

 * Blog: http://jacky.seezone.net

 * email:  jackysee at gmail dot com

 * Dual licensed under the MIT and GPL licenses:

 *   http://www.opensource.org/licenses/mit-license.php

 *   http://www.gnu.org/licenses/gpl.html

*/

(function($){

	/* created fixed headers , require jquery dimenions plugins*/

	$.fn.fixedHeader = function(o){

		var s = {adjustWidth: $.fixedHeader.calcWidth};

		if(o) $.extend(s,o);

		return this.each(function(){

			var table = $(this); //table

			var tId = this.id;

			var scrollBarWidth = $.fixedHeader.getScrollBarWidth();

			var IE6 = $.browser.msie && $.browser.version == '6.0';

			//wrap a body container

			var bodyContainer = table.wrap('<div></div>').parent()

				.attr('id', tId + "_body_container")

				.css({

					width: s.width,

					height: s.height,

					overflow: 'auto'

				});

			//Wrap with an overall container

			var tableContainer = bodyContainer.wrap('<div></div>').parent()

				.attr('id', tId + '_table_container')

				.css('position','relative');

			//clone the header

			var headerContainer = $(document.createElement('div'))

				.attr('id', tId + '_header_container')

				.css({

					width:  bodyContainer.innerWidth() - scrollBarWidth,

					height: table.find('thead').outerHeight(),

					overflow: 'hidden',

					top: 0, left:0

				})

				.prependTo(tableContainer);

			var headerTable = table.clone(true)

				.find('tbody').remove().end()

				.attr('id',tId + "_header")

				.addClass(s.tableClass || table[0].className)

				.css({

					//width: $.browser.msie? table.outerWidth():table.width(),

					'table-layout':'fixed',

					position:'absolute',

					top:0, left:0

				})

				.append(table.find('thead').clone(true))

				.appendTo(headerContainer);

			//sync header width

			var headThs = headerTable.find('th');

			table.find('th').each(function(i){

				headThs.eq(i).css('width', s.adjustWidth(this));

			})

			//sync scroll

			var selects = IE6? table.find("select"): null;

			bodyContainer.scroll(function(){

				if(IE6 && selects.size()>0){

					selects.each(function(i){

						this.style.visibility =

							($(this).offset().top - bodyContainer.offset().top) <= table.find("thead").outerHeight() + 10

							? 'hidden':'visible';

					});

				}

				headerTable.css({

					left: '-' + $(this).scrollLeft() + 'px'

				});

			})

			//Move it down

			headerContainer.css({

				'position': 'absolute',

				'top': 0

			});

		});

	}

	$.fixedHeader = {

		calcWidth: function(th){

			var w = $(th).width();

			var paddingLeft = $.fixedHeader.getComputedStyleInPx(th,'paddingLeft');

			var paddingRight = $.fixedHeader.getComputedStyleInPx(th,'paddingRight');

			var borderWidth = $.fixedHeader.getComputedStyleInPx(th,'borderRightWidth');

			if($.browser.msie) w = w+borderWidth;

			if($.browser.opera) w = w+borderWidth;

			if($.browser.safari) w = w+paddingLeft+paddingRight+borderWidth*2;

			if($.browser.mozilla && parseFloat($.browser.version) <= 1.8) w=w+borderWidth; //FF2 still got a border-left missing problem, this is the best I can do.

			return w;

		},

		getComputedStyleInPx: function(elem,style){

			var computedStyle = (typeof elem.currentStyle != 'undefined')

				?elem.currentStyle

				:document.defaultView.getComputedStyle(elem, null);

			var val = computedStyle[style];

			val = val? parseInt(val.replace("px","")):0;

			return (!val || val == 'NaN')?0:val;

		},

		getScrollBarWidth: function() { //calculate or get from global the scroll bar width

			if(!$.fixedHeader.scrollBarWidth){

				var inner = $(document.createElement('p')).css({width:'100%',height:'100%'});

				var outer = $(document.createElement('div'))

					.css({

						position:'absolute',

						top: '0px',

						left: '0px',

						visibility: 'hidden',

						width: '200px',

						height: '150px',

						overflow: 'hidden'

					})

					.append(inner)

					.appendTo(document.body);

				var w1 = inner[0].offsetWidth;

				outer[0].style.overflow = 'scroll';

				var w2 = inner[0].offsetWidth;

				if (w1 == w2) w2 = outer[0].clientWidth;

				document.body.removeChild (outer[0]);

				$.fixedHeader.scrollBarWidth = (w1 - w2);

			}

			return $.fixedHeader.scrollBarWidth;

		}

	}

})(jQuery);