/* Kalender ____________________________________________________________ */

	var calendar = null;
	
	function showCalendar (element, input, container, source, relatedinput) {
	
		var aDatum = new Array();
		
		//alert(relatedinput);
		
		Object.extend(Date.prototype, {
				monthnames: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
				daynames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
			});
		
		if (!calendar) {
            
			container = $(container);
            //the Draggable handle is hard coded to "rtop" to avoid other parameter.
            new Draggable(container, {handle: "rtop", starteffect: Prototype.emptyFunction, endeffect: Prototype.emptyFunction});
            
            //The singleton calendar is created.
            calendar = new scal(element, $(input), 
            {
                updateformat: 'dd.mm.yyyy', 
                wrapper: container,
				relatedinput: relatedinput
            }); 
        }
        else
        {
            calendar.updateelement = $(input);
        }
		
		aDatum = $F(input).split(".");

        var date = new Date(aDatum[2] + "/" + aDatum[1] + "/" + aDatum[0]);
        calendar.setCurrentDate(isNaN(date) ? new Date() : date);
        
        //Locates the calendar over the calling control  (in this example the "img").
        if (source = $(source))
        {
            Position.clone($(source), container, {setWidth: false, setHeight: false, offsetLeft: source.getWidth() + 2});
        }
        
        //finally show the calendar =)
        calendar.openCalendar();
    };
	
	var imgCalendar_Click = function(e, input, relatedinput) {
		if (!$('calendar-container')) {
			$$('body')[0].insert({ 'bottom': '<div id="calendar-container" style="display: none; z-index: 20; position: absolute;"><b class="rtop"><b class="r1"></b> <b class="r2"></b> <b class="r3"></b> <b class="r4"></b></b><div class="floating" id="calendar"></div></div>' });
		}
		showCalendar("calendar", input, "calendar-container", Event.element(e), relatedinput);
    };
    
	
	Event.observe(window, "load", function(e){
		if ($('imganreisedatum')) {
			Event.observe("imganreisedatum", "click", imgCalendar_Click.bindAsEventListener(this, "anreisedatum", ""));
		}
	});