emptyToBottom updates

README.markdown

@@ -35,6 +35,12 @@ tablesorter can successfully parse and sort many types of data including linked
 
 View the [complete listing here](https://github.com/Mottie/tablesorter/wiki/Change).
 
+#### Version 2.1.15 (4/18/2012)
+
+* Modified the `emptyAtBottom` option:
+  * Clarified that setting this option to `null` will treat empty cells as if they had a value of zero. Fix for [issue #48](https://github.com/Mottie/tablesorter/issues/48).
+  * Modified the script so that empty cells do not call their respective parser to keep the `emptyAtBottom` functionality working properly. Fix for [issue #49](https://github.com/Mottie/tablesorter/issues/49).
+
 #### Version 2.1.14 (4/17/2012)
 
 * Updated "shortDate" parser to include the time, if provided. I've also updated the [Changing the date format](http://mottie.github.com/tablesorter/docs/example-option-date-format.html) demo with a few times.

docs/example-option-sort-empty.html

@@ -51,7 +51,7 @@ <h3>Flexible client-side table sorting</h3>
 		<ul>
 			<li>true - sort empty table cells to the bottom.</li>
 			<li>false - sort empty table cells to the top.</li>
-			<li>null - sort empty table cells as if the cell has the lowest value (less than "a" and "0").</li>
+			<li>null - sort empty table cells as if the cell has the value equal to zero.</li>
 		</ul>
 	</p>
 
@@ -121,6 +121,33 @@ <h1>Demo</h1>
 			<td>23%</td>
 			<td></td>
 		</tr>
+		<tr>
+			<td>A109</td>
+			<td>Larry</td>
+			<td>Stevens</td>
+			<td>56</td>
+			<td>153.19</td>
+			<td>23%</td>
+			<td>0</td>
+		</tr>
+		<tr>
+			<td>A99</td>
+			<td>John</td>
+			<td>Smithy</td>
+			<td>56</td>
+			<td>156</td>
+			<td>22%</td>
+			<td></td>
+		</tr>
+		<tr>
+			<td>A119</td>
+			<td>Mike</td>
+			<td>Rowe</td>
+			<td>55</td>
+			<td>-53.99</td>
+			<td>13%</td>
+			<td>0</td>
+		</tr>
 	</tbody>
 </table></div>
 

js/jquery.tablesorter.js

@@ -1,5 +1,5 @@
 /*!
-* TableSorter 2.1.14 - Client-side table sorting with ease!
+* TableSorter 2.1.15 - Client-side table sorting with ease!
 * @requires jQuery v1.2.6+
 *
 * Copyright (c) 2007 Christian Bach
@@ -18,7 +18,7 @@
 	$.extend({
 		tablesorter: new function(){
 
-			this.version = "2.1.14";
+			this.version = "2.1.15";
 
 			var parsers = [], widgets = [], tbl;
 			this.defaults = {
@@ -203,7 +203,7 @@
 					for (j = 0; j < totalCells; ++j) {
 						t = trimAndGetNodeText(table.config, c[0].cells[j], j);
 						// don't bother parsing if the string is empty - previously parsing would change it to zero
-						cols.push( parsers[j].format(t, table, c[0].cells[j], j) );
+						cols.push( t === '' ? '' : parsers[j].format(t, table, c[0].cells[j], j) );
 					}
 					cols.push(cache.normalized.length); // add position for rowCache
 					cache.normalized.push(cols);

package.json

@@ -1,6 +1,6 @@
 {
     "name": "tablesorter",
-    "version": "2.1.14",
+    "version": "2.1.15",
     "title": "tablesorter",
     "author": {
         "name": "Christian Bach",