From f9034ac9a2adb856b8d8b7bd9883dccefd1c2f5a Mon Sep 17 00:00:00 2001
From: euzuro <euzuro@metacarta.com>
Date: Mon, 17 Jul 2006 15:37:48 +0000
Subject: [PATCH] do not add null-valued parameters

git-svn-id: http://svn.openlayers.org/trunk/openlayers@959 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 lib/OpenLayers/Util.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/OpenLayers/Util.js b/lib/OpenLayers/Util.js
index b60173f01c..4ef93f9cb5 100644
--- a/lib/OpenLayers/Util.js
+++ b/lib/OpenLayers/Util.js
@@ -932,10 +932,9 @@ OpenLayers.Util.getParameterString = function(params) {
     
     for (var key in params) {
         var value = params[key];
-        //skip functions
-        if (typeof value == 'function') continue;
-    
-        paramsArray.push(key + "=" + value);
+        if ((value != null) && (typeof value != 'function')) {
+            paramsArray.push(key + "=" + value);
+        }
     }
     
     return paramsArray.join("&");