diff --git a/js/form.js b/js/form.js
index f254998..7a8812d 100644
--- a/js/form.js
+++ b/js/form.js
@@ -1,7 +1,14 @@
-$('#show-password').click(function () {
-	if ( $('#password').attr('type') == "password" ) {
-		$('#password').attr('type', 'text');
-	} else {
-		$('#password').attr('type', 'password');
-	}
+// var instead of let/const for better older browsers compatibility
+var passwordTextField;
+function togglePasswordTextFieldVisibility() {
+    if (passwordTextField.attr('type') == "password") {
+        passwordTextField.attr('type', 'text');
+    } else {
+        passwordTextField.attr('type', 'password');
+    }
+}
+
+$(document).ready(function() {
+    passwordTextField = $("#password");
+    $("#show").change(togglePasswordTextFieldVisibility);
 });