operator
xmlns-name (of element-qualifier)?
This returns the namespace name (ie URI) associated with an element. When the element has no namespace, it returns a zero-length string. It is syntactically similar to the "name of" syntax item (or at least the part of that that takes an "element-qualifier" as an argument). When no "of" clause appears, it returns the namespace name of the current element.
do when xmlns-name of parent matches "http://www.omnimark.com/omtbl.xml" ... doneor
output xmlns-name of ancestor title