diff --git a/public/js/functions.js b/public/js/functions.js
index 4dba2a2..15b394d 100644
--- a/public/js/functions.js
+++ b/public/js/functions.js
@@ -1,4 +1,5 @@
-function openPagePost(page, request, blank = false){
+function openPagePost(page, request, blank){
+	var blank = typeof blank !== 'undefined' ?  blank : false;
 	var inputs = '';
 	request.forEach(function(element, index, array){
 		inputs += '<input type="hidden" name="'+element.name+'" value="'+element.value+'" />';