Metamer: pickList: check why tests for event handler failing even thay are working when check manualy

There are some event handler tests for pickList which are failing even handlers seems to be working ok - such as alerts attached to appropriate event are fired.
It is following list of handlers:
testOnblur,
testOnfocus,
testOnsourcekeydown,
testOnsourcekeypress,
testOnsourcekeyup,
testOntargetkeydown,
testOntargetkeypress,
testOntargetkeyup