add an additional check if an ajax action id is present, fixes an exception in the rare corner cases
i.e.: do a qc.pA call by hand in js without an ajax action id
fix an issue when clicking on a row in the QDataGrid using event delegation with the QOnEvent
fix a copy/paste error arTmp --> arrTemp
Merge pull request #72 from demike/feature-QOnEvent

add an additional check if an ajax action id is present, fixes an except...