effects.core: fixed parsing of IE left/top values in createWrapper (closes #2915)

diff --git a/ui/source/effects.core.js b/ui/source/effects.core.js
index 8841cf59b618d1e3cbb31f2dc58d4ef4e68375bf..b44a7227492f48a315e8692adf8d6ae1d5169ea8 100644 (file)
--- a/ui/source/effects.core.js
+++ b/ui/source/effects.core.js
@@ -44,8 +44,8 @@
         wrapper.css({position: 'relative'});
         el.css({position: 'relative'});
       } else {
-        var top = parseInt(el.css('top'), 10); if (top.constructor != Number) top = 'auto';
-        var left = parseInt(el.css('left'), 10); if (left.constructor != Number) left = 'auto';
+        var top = parseInt(el.css('top'), 10); if(isNaN(top)) top = 'auto';
+        var left = parseInt(el.css('left'), 10); if(isNaN(top)) left = 'auto';
         wrapper.css({ position: el.css('position'), top: top, left: left, zIndex: el.css('z-index') }).show();
         el.css({position: 'relative', top:0, left:0});
       }