Calendar.setup({
        inputField     :    "f_date_c1",     // id of the input field
        ifFormat       :    "%d.%m.%Y",      // format of the input field
        button         :    "kalender1",  // trigger for the calendar (button ID)
        align          :    "Tl",           // alignment (defaults to "Bl")
        singleClick    :    true
    });
	
	Calendar.setup({
        inputField     :    "f_date_c2",     // id of the input field
        ifFormat       :    "%d.%m.%Y",      // format of the input field
        button         :    "kalender2",  // trigger for the calendar (button ID)
        align          :    "Tl",           // alignment (defaults to "Bl")
        singleClick    :    true
    });