Tabular json from table

gistfile1.js

/**
 * Serializes inputs in a table to json preserving rows and cols
 * 
 * Example:
 *	Doesn't work for multiple tables right now! 
 *	var json = $('#table').toTabularJSON();
 *
 *	If using inputs, think of each cell as an instance with limited scope. Use the same
 *	input names for consistency:
 *	<table>
 *		<tr>
 *			<td><input type="text" name="first_name" /></td>
 *			<td><input type="text" name="last_name" /></td>
 *		</tr>
 *		<tr>
 *			<td>
 *				<input type="text" name="first_name" />
 *				<input type="text" name="middle_initial" />
 *			</td>
 *			<td><input type="text" name="last_name" /></td>
 *		</tr>
 *	</table>
 *
 *	Returns json like:
 *	[
 *		[ // tr
 *			[first_name: <value>], // td
 *			[last_name: <value>] // td
 *		],
 *		[ // tr
 *			[ // td
 *				first_name: <value>,
 *				middle_initial: <value>
 *			],
 *			[last_name: <value>] // td
 *		]
 *	]
 */

(function($) {
	$.fn.toTabularJSON = function(opts) {
		// default options
		var defaults = {
			onlyInputs: true
		};

		var options = $.extend(defaults, opts);
		var json = [];

		this.each(function() {
			var table = [];
			
			// find all the trs
			var $tr = $('tr', this);
			
			// find all the tds
			$tr.each(function(trI, trE) {
				var trData = [];
				var $td = $('td', trE);
				
				$td.each(function(tdI, tdE) {
					var tdData = [];
					if (options.onlyInputs) {
						var input = $(':input', tdE);
						input.each(function(iI, iE) {
							$iE = $(iE);
							tdData[$iE.attr('name')] = $iE.val();
						});
					} else {
						tdData = $(tdE).html();
					}
					trData.push(tdData);
				});
				table.push(trData);
			});

			json.push(table);
		});

		return json;
	};
})(jQuery);