// ** I18N
Calendar._DN = new Array
("Sunday",
 "Monday",
 "Tuesday",
 "Wednesday",
 "Thursday",
 "Friday",
 "Saturday",
 "Sunday");
Calendar._MN = new Array
("January",
 "February",
 "March",
 "April",
 "May",
 "June",
 "July",
 "August",
 "September",
 "October",
 "November",
 "December");

// tooltips
Calendar._TT = {};
Calendar._TT["TOGGLE"] = "Toggle first day of week";
Calendar._TT["PREV_YEAR"] = "Prev. year (hold for menu)";
Calendar._TT["PREV_MONTH"] = "Prev. month (hold for menu)";
Calendar._TT["GO_TODAY"] = "Go Today";
Calendar._TT["NEXT_MONTH"] = "Next month (hold for menu)";
Calendar._TT["NEXT_YEAR"] = "Next year (hold for menu)";
Calendar._TT["SEL_DATE"] = "Select date";
Calendar._TT["DRAG_TO_MOVE"] = "Drag to move";
Calendar._TT["PART_TODAY"] = " (today)";
Calendar._TT["MON_FIRST"] = "Display Monday first";
Calendar._TT["SUN_FIRST"] = "Display Sunday first";
Calendar._TT["CLOSE"] = "Close";
Calendar._TT["TODAY"] = "Today";

// date formats
Calendar._TT["DEF_DATE_FORMAT"] = "y-mm-dd";
Calendar._TT["TT_DATE_FORMAT"] = "D, M d";

Calendar._TT["WK"] = "wk";



Calendar.setup = function (params) {
	function param_default(pname, def) { if (typeof params[pname] == "undefined") { params[pname] = def; } };

	param_default("inputField",    null);
	param_default("displayArea",   null);
	param_default("displayField",  null);	
	param_default("button",        null);
	param_default("eventName",     "click");
	param_default("ifFormat",      "y/mm/dd");
	param_default("daFormat",      "y/mm/dd");
	param_default("singleClick",   true);
	param_default("disableFunc",   null);
	param_default("mondayFirst",   false);
	param_default("align",         "Bl");
	param_default("range",         [1900, 2999]);
	param_default("weekNumbers",   true);
	param_default("flat",          null);
	param_default("flatCallback",  null);

	var tmp = ["inputField", "displayArea", "displayField", "button"];
	for (var i in tmp) {
		if (typeof params[tmp[i]] == "string") {
			params[tmp[i]] = document.getElementById(params[tmp[i]]);
		}
	}
	if (!(params.flat || params.inputField || params.displayArea || params.button)) {
		alert("Calendar.setup:\n  Nothing to setup (no fields found).  Please check your code");
		return false;
	}

	function onSelect(cal) {
		if (cal.params.flat) {
			if (typeof cal.params.flatCallback == "function") {
				cal.params.flatCallback(cal);
			} else {
				alert("No flatCallback given -- doing nothing.");
			}
			return false;
		}

		if (cal.params.inputField) {
			if (cal.params.ifFormat == 'ymmdd'){
				var m = cal.date.getMonth();
				var month = (m < 9) ? ("0" + (1+m)) : (1+m);
				var year = cal.date.getFullYear();
				var d = cal.date.getDate();
				var day = (d < 10) ? ("0" + d) : d;
				cal.params.inputField.value = year + month + day;
			} else {
				cal.params.inputField.value = cal.date.print(cal.params.ifFormat);
			}
		}
		if (cal.params.displayArea) {
			cal.params.displayArea.innerHTML = cal.date.print(cal.params.daFormat);
		}
		if (cal.params.singleClick && cal.dateClicked) {
			cal.callCloseHandler();
		}
		if (cal.params.displayField) {
			if (cal.params.daFormat == 'ymmdd'){
				var m = cal.date.getMonth();
				var month = (m < 9) ? ("0" + (1+m)) : (1+m);
				var year = cal.date.getFullYear();
				var d = cal.date.getDate();
				var day = (d < 10) ? ("0" + d) : d;
				cal.params.displayField.value = year + '' + month + '' + day;
			} else {
				cal.params.displayField.value = cal.date.print(cal.params.daFormat);
			}
		}
		if (cal.params.flatCallback) {
			if (typeof cal.params.flatCallback == "function") {
				if (cal.dateClicked){
					cal.params.flatCallback(cal);
				}
			} else {
				alert("No flatCallback given -- doing nothing.");
			}
			return false;
		}
	};

	if (params.flat != null) {
		params.flat = document.getElementById(params.flat);
		if (!params.flat) {
			alert("Calendar.setup:\n  Flat specified but can't find parent.");
			return false;
		}
		var cal = new Calendar(params.mondayFirst, null, onSelect);
		cal.params = params;
		cal.weekNumbers = params.weekNumbers;
		cal.setRange(params.range[0], params.range[1]);
		cal.setDisabledHandler(params.disableFunc);
		cal.create(params.flat);
		cal.show();
		return false;
	}

	var triggerEl = params.button || params.displayArea || params.inputField;
	triggerEl["on" + params.eventName] = function() {
		var dateEl = params.inputField || params.displayArea;
		var dateFmt = params.inputField ? params.ifFormat : params.daFormat;
		var mustCreate = false;
		if (!window.calendar) {
			window.calendar = new Calendar(params.mondayFirst, null, onSelect, function(cal) { cal.hide(); });
			window.calendar.weekNumbers = params.weekNumbers;
			mustCreate = true;
		} else {
			window.calendar.hide();
		}
		window.calendar.setRange(params.range[0], params.range[1]);
		window.calendar.params = params;
		window.calendar.setDisabledHandler(params.disableFunc);
		window.calendar.setDateFormat(dateFmt);
		if (mustCreate) {
			window.calendar.create();
		}
		window.calendar.parseDate(dateEl.value || dateEl.innerHTML);
		window.calendar.refresh();
		window.calendar.showAtElement(params.displayArea || params.inputField, params.align);
		return false;
	};
};