Parsers: Add image alt parser

js/parsers/parser-image.js

@@ -0,0 +1,20 @@
+/*! image alt attribute parser for jQuery 1.7+ & tablesorter 2.7.11+
+ * New 7/8/2014 (v2.17.4)
+ */
+/*jshint jquery:true, unused:false */
+;(function($){
+"use strict";
+
+	$.tablesorter.addParser({
+		id: "image",
+		is: function(){
+			return false;
+		},
+		format: function(s, table, cell) {
+			return $(cell).find('img').attr(table.config.imgAttr || 'alt') || s;
+		},
+		parsed : true, // filter widget flag
+		type: "text"
+	});
+
+})(jQuery);