prevCommentsComboBox.addItem(str);
if (str.length() < 20) prevCommentsComboBox.addItem(str); else prevCommentsComboBox.addItem(str.substring(0,17)+"...");
	private void resetPrevCommentsComboBox(){		prevCommentsComboBox.removeAllItems();					prevCommentsComboBox.addItem("");					for(String str : prevCommentsList){			prevCommentsComboBox.addItem(str);		}	}