/*  Copyright Mihai Bazon, 2002, 2003  |  http://dynarch.com/mishoo/
 * ---------------------------------------------------------------------------
 *
 * The DHTML Calendar
 *
 * Details and latest version at:
 * http://dynarch.com/mishoo/calendar.epl
 *
 * This script is distributed under the GNU Lesser General Public License.
 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
 *
 * This file defines helper functions for setting up the calendar.  They are
 * intended to help non-programmers get a working calendar on their site
 * quickly.  This script should not be seen as part of the calendar.  It just
 * shows you what one can do with the calendar, while in the same time
 * providing a quick and simple method for setting it up.  If you need
 * exhaustive customization of the calendar creation process feel free to
 * modify this code to suit your needs (this is recommended and much better
 * than modifying calendar.js itself).
 */
 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",[1900,2999]);
 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;};