From 159eb4ce59fe619e21739e76645fbaaeb7642026 Mon Sep 17 00:00:00 2001
From: Marc <sunpack@web.de>
Date: Fri, 24 Apr 2015 15:39:31 +0200
Subject: [PATCH] Fix

---
 src/octoprint/static/js/app/viewmodels/control.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/octoprint/static/js/app/viewmodels/control.js b/src/octoprint/static/js/app/viewmodels/control.js
index 17ec4623..4dcd0e61 100644
--- a/src/octoprint/static/js/app/viewmodels/control.js
+++ b/src/octoprint/static/js/app/viewmodels/control.js
@@ -157,7 +157,10 @@ $(function() {
             if (control.hasOwnProperty("input")) {
                 for (var i = 0; i < control.input.length; i++) {
                     if (control.input[i].hasOwnProperty("slider") && typeof control.input[i].slider == "object") {
-                        var param = control.input[i].hasOwnProperty("defaultValue") ? control.input[i].defaultValue : (control.input[i].slider.hasOwnProperty("min") ? control.input[i].slider.min : 0);
+                        var param = control.input[i].hasOwnProperty("defaultValue") && !isNaN(control.input[i].defaultValue) && control.input[i].defaultValue != undefined && control.input[i].defaultValue != "" ?
+                                    control.input[i].defaultValue : (control.input[i].slider.hasOwnProperty("min") && !isNaN(control.input[i].slider.min) && control.input[i].slider.min != undefined && control.input[i].slider.min != "" ?
+                                    control.input[i].slider.min : 0);
+
                         if (typeof param == "string")
                             param = parseInt(param);