Fixed XML markup.

This fixes an invalid markup issue that is problematic for **XHTML** pages that imply strict XML parsing.

Attributes are appended afterwards with space after the attribute but not before it, so the resulted markups looks like this:

```xml
<object type="application/x-shockwave-flash"data="...
```

The space could be added elsewhere, but it's not worth adding it in a loop with additional string concatenation operation and larger script size.