Index: js_extension/string.js
==================================================================
--- js_extension/string.js
+++ js_extension/string.js
@@ -22,14 +22,14 @@
     };
     String.prototype.gl_isAlpha = function () {
         return (this.search(/^[a-zà-öA-Zø-ÿÀ-ÖØ-ßĀ-ʯff-stᴀ-ᶿ]+$/) !== -1);
     };
     String.prototype.gl_isLowerCase = function () {
-        return (this.search(/^[a-zà-öø-ÿff-st0-9-]+$/) !== -1);
+        return (this.search(/^[a-zà-öø-ÿff-st0-9'’-]+$/) !== -1);
     };
     String.prototype.gl_isUpperCase = function () {
-        return (this.search(/^[A-ZÀ-ÖØ-ߌ0-9-]+$/) !== -1);
+        return (this.search(/^[A-ZÀ-ÖØ-ߌ0-9'’-]+$/) !== -1);
     };
     String.prototype.gl_isTitle = function () {
         return (this.search(/^[A-ZÀ-ÖØ-ߌ][a-zà-öø-ÿff-st'’-]+$/) !== -1);
     };
     String.prototype.gl_toCapitalize = function () {