1 files changed, 13 insertions, 1 deletions
diff --git a/chimere/static/base.js b/chimere/static/base.js
index 70b8742..1eba699 100644
--- a/chimere/static/base.js
+++ b/chimere/static/base.js
@@ -20,6 +20,18 @@ See the file COPYING for details.
 var default_area;
 var area_name;
 
+/* indexOf definition for old IE versions */
+if(!Array.indexOf){
+  Array.prototype.indexOf = function(obj){
+   for(var i=0; i<this.length; i++){
+    if(this[i]==obj){
+     return i;
+    }
+   }
+   return -1;
+  }
+}
+
 /* show a block panel */
 function show(id){
     document.getElementById(id).style.display = 'block';
@@ -45,7 +57,7 @@ function getExtent() {
     var map_extent;
     var extent_key = 'MAP_EXTENT';
     if (area_name){ extent_key = extent_key + '_' + area_name; }
-    for (i in cookies){
+    for (var i=0; i < cookies.length; i++){
         var items = cookies[i].split('=');
         key = items[0].split(' ').join('');
         if (key == extent_key){