XmlElement.MatchFilter (gb.xml.html)
Function MatchFilter ( Filter As String ) As Boolean
Returns if this element matches the given CSS 
Filter (i.e. a combination of CSS selectors).
The following CSS selectors are currently supported :
(see the 
W3Schools CSS Selector Reference for a description for each of the following selectors)
  - 
.class
 
  - 
#id
 
  - 
*
 
  - 
element
 
  - 
element , element
 
  - 
element   element
 
  - 
element > element
 
  - 
element + element
 
  - 
[attribute]
 
  - 
[attribute="value"]
 
  - 
[attribute~="value"]
 
  - 
[attribute^="value"]
 
  - 
[attribute$="value"]
 
  - 
[attribute*="value"]
 
  - 
:first-child
 
  - 
:last-child