def getApplicationVariables(dbid=nil)
      variablesHash = {}
      dbid ||= @dbid
      qbc.getSchema(dbid)
      if @variables
         @variables.each_element_with_attribute( "name" ){ |var|
            if var.name == "var" and var.has_text?
              variablesHash[var.attributes["name"]] =  var.text
            end
         }
      end
      variablesHash
    end
def getApplicationVariables(dbid=nil)
      variablesHash = {}
      dbid ||= @dbid
      qbc.getSchema(dbid)
      if @variables
         @variables.each_element_with_attribute( "name" ){ |var|
            if var.name == "var" and var.has_text?
              variablesHash[var.attributes["name"]] =  var.text
            end
         }
      end
      variablesHash
    end
Get a Hash of application variables.