[Inf-IT DAVcl] CalDAVzap: Default calendar

I use CalDAVzap with a list of calendars. In my config.js, I have: var globalCalendarSelected='jv/default/'; So I expect this calendar to be selected by default. However, CalDAVzap still selects the first available calendar instead. This happens with FireFox and Chrome. Do I misunderstand the purpose of globalCalendarSelected? -- Johan