return!!(document.namespaces) in support function of VML causes error in IE (7&8)

[scaddenp]

This function:

• APIMethod: supported
• Determine whether a browser supports this renderer. *
• Returns:
• {Boolean} The browser supports the VML renderer */

supported: function() {

return !!(document.namespaces);

},

is returning "unspecified error" when opening an openlayers.js page in IE 7 or 8 with script errors turned on.

The user code that triggers the error is: selectedLayer = new OpenLayers.Layer.Vector("Selected Layer");

[rdewit]

Duplicate of #2304