diff --git a/scripts.js b/scripts.js
index c59df55..0521809 100644
--- a/scripts.js
+++ b/scripts.js
@@ -12,9 +12,10 @@ function toggleInputs(idcb, idfields) {
 	}
 }
 
-function toggleVisibility(idcheck, fields) {
-	const elem = document.getElementById(idcheck);
-	fields.forEach(function (field) {
+function toggleVisibility(id_check, fields) {
+	const elem = document.getElementById(id_check);
+	fields.forEach(function (id_field) {
+		const field = document.getElementById(id_field);
 		if (elem.checked) {
 			field.classList.remove('hidden');
 		} else {