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("button",         null);
param_default("eventName",      "click");
param_default("ifFormat",       "%Y/%m/%d");
param_default("daFormat",       "%Y/%m/%d");
param_default("singleClick",    true);
param_default("disableFunc",    null);
param_default("dateStatusFunc", params["disableFunc"]);
param_default("dateText",       null);
param_default("firstDay",       null);
param_default("align",          "Br");
param_default("range",          [2009, 2015]);
param_default("weekNumbers",    true);
param_default("flat",           null);
param_default("flatCallback",   null);
param_default("onSelect",       null);
param_default("onClose",        null);
param_default("onUpdate",       null);
param_default("date",           null);
param_default("showsTime",      false);
param_default("timeFormat",     "24");
param_default("electric",       true);
param_default("step",           2);
param_default("position",       null);
param_default("cache",          false);
param_default("showOthers",     false);
param_default("multiple",       null);
var tmp=["inputField", "displayArea", "button"];
for(var i in tmp){if(typeof params[tmp[i]]=="string") {
params[tmp[i]]=document.getElementById(params[tmp[i]]);}}
if(!(params.flat||params.multiple||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){var p=cal.params;var update=(cal.dateClicked||p.electric);if(update&&p.inputField){p.inputField.value=cal.date.print(p.ifFormat);if(typeof p.inputField.onchange=="function")
p.inputField.onchange();}
if(update&&p.displayArea)
p.displayArea.innerHTML=cal.date.print(p.daFormat);if(update&&typeof p.onUpdate=="function")
p.onUpdate(cal);if(update&&p.flat){if(typeof p.flatCallback=="function")
p.flatCallback(cal);}
if(update&&p.singleClick&&cal.dateClicked)
cal.callCloseHandler();};if(params.flat!=null){if(typeof params.flat=="string")
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.firstDay,params.date,params.onSelect||onSelect);cal.showsOtherMonths=params.showOthers;cal.showsTime=params.showsTime;cal.time24=(params.timeFormat=="24");
cal.params=params;cal.weekNumbers=params.weekNumbers;cal.setRange(params.range[0],params.range[1]);cal.setDateStatusHandler(params.dateStatusFunc);cal.getDateText=params.dateText;if(params.ifFormat){cal.setDateFormat(params.ifFormat);}
if(params.inputField&&typeof params.inputField.value=="string") {
cal.parseDate(params.inputField.value);}
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;var cal=window.calendar;if(dateEl)
params.date=Date.parseDate(dateEl.value||dateEl.innerHTML,dateFmt);if(!(cal&&params.cache)){window.calendar=cal=new Calendar(params.firstDay,params.date,params.onSelect||onSelect,params.onClose||function(cal){cal.hide();});cal.showsTime=params.showsTime;cal.time24=(params.timeFormat=="24");
cal.weekNumbers=params.weekNumbers;mustCreate=true;}else{if(params.date)
cal.setDate(params.date);cal.hide();}
if(params.multiple){cal.multiple={};for(var i=params.multiple.length;--i>=0;){var d=params.multiple[i];var ds=d.print("%Y%m%d");
cal.multiple[ds]=d;}}
cal.showsOtherMonths=params.showOthers;cal.yearStep=params.step;cal.setRange(params.range[0],params.range[1]);cal.params=params;cal.setDateStatusHandler(params.dateStatusFunc);cal.getDateText=params.dateText;cal.setDateFormat(dateFmt);if(mustCreate)
cal.create();cal.refresh();if(!params.position)
cal.showAtElement(params.button||params.displayArea||params.inputField,params.align);else
cal.showAt(params.position[0],params.position[1]);return false;};return cal;};