--- javascript/qooxdoo-0.7.3-sdk/frontend/framework/source/class/qx/html/Location.js.old	2010-04-20 14:18:32.000000000 +0200
+++ javascript/qooxdoo-0.7.3-sdk/frontend/framework/source/class/qx/html/Location.js	2010-04-20 14:42:14.000000000 +0200
@@ -419,7 +419,7 @@
     getPageAreaLeft : qx.core.Variant.select("qx.client",
     {
       "gecko" : function(el) {
-        return el.ownerDocument.getBoxObjectFor(el).x;
+        return el.getBoundingClientRect().left;
       },
 
       "default" : function(el) {
@@ -439,7 +439,7 @@
     getPageAreaTop : qx.core.Variant.select("qx.client",
     {
       "gecko" : function(el) {
-        return el.ownerDocument.getBoxObjectFor(el).y;
+        return el.getBoundingClientRect().top;
       },
 
       "default" : function(el) {