Custom jQuery Selector to tag that contains text(ignore accents). It works equals :contains selector, but select all tags inpedendent of accents

contains-IgnoreAceents

(function($) {

                   var accent_map = {
			'á':'a',
			'à':'a',
			'â':'a',
			'å':'a',
			'ä':'a',
			'a':'a',
			'ã':'a',
			'ç':'c',
			'é':'e',
			'è':'e',
			'ê':'e',
			'ë':'e',
			'í':'i',
			'ì':'i',
			'î':'i',
			'ï':'i',
			'ñ':'n',
			'ó':'o',
			'ò':'o',
			'ô':'o',
			'ö':'o',
			'õ':'o',
			'ú':'u',
			'ù':'u',
			'û':'u',
			'ü':'u',};


			String.prototype.replaceEspecialChars = function() {
				var ret = '', s = this.toString();
				if (!s) { return ''; }
				for (var i=0; i<s.length; i++) {
					ret += accent_map[s.charAt(i)] || s.charAt(i);
				}
				return ret;
			};

			String.prototype.contains = function(otherString) {
				return this.toString().indexOf(otherString) !== -1;
			};


			$.extend($.expr[':'], {

				'contains-IgnoreAccents' : function(elemt, idx, math) {
					
					var expression1 = math[3].toLowerCase(),
						semAcent1 = expression1.replaceEspecialChars(),
						expression2 = elemt.innerHTML.toLowerCase(),
						semAcent2 = expression2.replaceEspecialChars();

					return semAcent2.contains(semAcent1); 			
				}
		});
			
})(jQuery);

///using this:
/// $(":contains-IgnoreAccents('josé')")
///results: 'jose' and 'josé'