mDCal = new dhtmlxDblCalendarObject('dhtmlxDblCalendar', false, {isMonthEditable: true, isYearEditable: true});
mDCal.setYearsRange(1980, 2020);
mDCal.setDateFormat("%d/%m/%Y");
mDCal.setDate("06/01/2008","15/01/2008")
mDCal.draw();