diff --git a/js/script_5.1.js b/js/script_5.1.js
index 48a55ce..d309c25 100644
--- a/js/script_5.1.js
+++ b/js/script_5.1.js
@@ -414,9 +414,9 @@ $(document).ready(function() {
 	
 	// Evento: click sull'icona di refresh dei radio button
 	$('#cla-TabContent').on('click', '.radioReset', function() {
-		fSet = $(this).parent().siblings('fieldset');
+		var fSet = $(this).parent().siblings('fieldset');
 		if (fSet.find(":checked").length) {
-			radioChecked = fSet.find(":checked")[0];
+			var radioChecked = fSet.find(":checked")[0];
 			radioChecked.checked = false;
 		};
         refreshClaList();