Check if sliders is defined

1 files changed, 9 insertions, 0 deletions

diff --git a/gmap_arcgis.js b/gmap_arcgis.js
index e804707..4cd0fab 100644
--- a/gmap_arcgis.js
+++ b/gmap_arcgis.js
@@ -551,6 +551,15 @@ function gmapArcgis(config) {
     // jQuery slider wrapper
     slider: function(element, slider) {
       var self  = this;
+
+      if (self.config.sliders == undefined) {
+        self.config.sliders = {};
+      }
+
+      if (self.config.sliders[slider] == undefined) {
+        self.config.sliders[slider] = {};
+      }
+
       var type  = (self.config.sliders[slider].type  != undefined) ? self.config.sliders[slider].type  : 'slider';
       var value = (self.config.sliders[slider].value != undefined) ? self.config.sliders[slider].value : 1;
       var min   = (self.config.sliders[slider].min   != undefined) ? self.config.sliders[slider].min   : 1;