context: function awClickEmptySpace(targ, setFocus){  if (targ.localName != 'treechildren')    return;  // dump("awClickEmptySpace\n");  var lastInput = awGetInputElement(top.MAX_RECIPIENTS);  if ( lastInput && lastInput.value )    awAppendNewRow(setFocus);  else    if (setFocus)      awSetFocus(top.MAX_RECIPIENTS, lastInput);}
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