diff --git a/sorting/date-de.js b/sorting/date-de.js
index e6604d7..c97018d 100644
--- a/sorting/date-de.js
+++ b/sorting/date-de.js
@@ -66,15 +66,15 @@
 
 	"de_date-asc": function ( a, b ) {
 		var x, y;
-		if (j$.trim(a) !== '') {
-			var deDatea = j$.trim(a).split('.');
+		if ($.trim(a) !== '') {
+			var deDatea = $.trim(a).split('.');
 			x = (deDatea[2] + deDatea[1] + deDatea[0]) * 1;
 		} else {
 			x = Infinity; // = l'an 1000 ...
 		}
 
-		if (j$.trim(b) !== '') {
-			var deDateb = j$.trim(b).split('.');
+		if ($.trim(b) !== '') {
+			var deDateb = $.trim(b).split('.');
 			y = (deDateb[2] + deDateb[1] + deDateb[0]) * 1;
 		} else {
 			y = Infinity;
@@ -85,15 +85,15 @@
 
 	"de_date-desc": function ( a, b ) {
 		var x, y;
-		if (j$.trim(a) !== '') {
-			var deDatea = j$.trim(a).split('.');
+		if ($.trim(a) !== '') {
+			var deDatea = $.trim(a).split('.');
 			x = (deDatea[2] + deDatea[1] + deDatea[0]) * 1;
 		} else {
 			x = Infinity;
 		}
 
-		if (j$.trim(b) !== '') {
-			var deDateb = j$.trim(b).split('.');
+		if ($.trim(b) !== '') {
+			var deDateb = $.trim(b).split('.');
 			y = (deDateb[2] + deDateb[1] + deDateb[0]) * 1;
 		} else {
 			y = Infinity;