/*  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).
 */

// $Id: calendar-setup.js,v 1.25 2005/03/07 09:51:33 mishoo Exp $

/**
 *  This function "patches" an input field (or other element) to use a calendar
 *  widget for date selection.
 *
 *  The "params" is a single object that can have the following properties:
 *
 *    prop. name   | description
 *  -------------------------------------------------------------------------------------------------
 *   inputField    | the ID of an input field to store the date
 *   displayArea   | the ID of a DIV or other element to show the date
 *   button        | ID of a button or other element that will trigger the calendar
 *   eventName     | event that will trigger the calendar, without the "on" prefix (default: "click")
 *   ifFormat      | date format that will be stored in the input field
 *   daFormat      | the date format that will be used to display the date in displayArea
 *   singleClick   | (true/false) wether the calendar is in single click mode or not (default: true)
 *   firstDay      | numeric: 0 to 6.  "0" means display Sunday first, "1" means display Monday first, etc.
 *   align         | alignment (default: "Br"); if you don't know what's this see the calendar documentation
 *   range         | array with 2 elements.  Default: [1900, 2999] -- the range of years available
 *   weekNumbers   | (true/false) if it's true (default) the calendar will display week numbers
 *   flat          | null or element ID; if not null the calendar will be a flat calendar having the parent with the given ID
 *   flatCallback  | function that receives a JS Date object and returns an URL to point the browser to (for flat calendar)
 *   disableFunc   | function that receives a JS Date object and should return true if that date has to be disabled in the calendar
 *   onSelect      | function that gets called when a date is selected.  You don't _have_ to supply this (the default is generally okay)
 *   onClose       | function that gets called when the calendar is closed.  [default]
 *   onUpdate      | function that gets called after the date is updated in the input field.  Receives a reference to the calendar.
 *   date          | the date that the calendar will be initially displayed to
 *   showsTime     | default: false; if true the calendar will include a time selector
 *   timeFormat    | the time format; can be "12" or "24", default is "12"
 *   electric      | if true (default) then given fields/date areas are updated for each move; otherwise they're updated only on close
 *   step          | configures the step of the years in drop-down boxes; default: 2
 *   position      | configures the calendar absolute position; default: null
 *   cache         | if "true" (but default: "false") it will reuse the same calendar object, where possible
 *   showOthers    | if "true" (but default: "false") it will show days from other months too
 *
 *  None of them is required, they all have default values.  However, if you
 *  pass none of "inputField", "displayArea" or "button" you'll get a warning
 *  saying "nothing to setup".
 */
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"]);	// takes precedence if both are defined
	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;
};

// 16.11.2006 - josser - josser@nixsolutions.com
// Added function to autoincrement date of departure date;
// Warn: In templates, use only <input name="arrival_date" id="arrival_date"...>  
// and the same for departure_date 
// Triggers are: id="arr_date_trigg" and id="dep_date_trigger"
// 

function ToTime(date) {
	
	var str_datetime = date;
	
	var re_date = /^(\d+)\-(\d+)\-(\d+).*$/;
	
	if (!re_date.exec(str_datetime)) {
		return alert("Invalid Datetime format: "+ str_datetime);
	}
	
	return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1, RegExp.$4, RegExp.$5, RegExp.$6));

}


function autoDate(cal) {
	
	var dep_id = document.getElementById("departure_date");
	var arr_id = document.getElementById("arrival_date");

	var dep_date=dep_id.value;
	var arr_date=arr_id.value;
	
	
	
	var date=cal.date;
	var time=date.getTime();
	
	if (cal.params.inputField == dep_id)
	{
		
		time-=Date.DAY
		var new_date=new Date(time);
		
		if (ToTime(arr_date) > time) {
			arr_id.value=new_date.print("%e-%m-%Y");
		}
	}
	
	if (cal.params.inputField == arr_id)
	{
		
		time+=Date.DAY
		var new_date=new Date(time);
		
		if (ToTime(dep_date) < time) {
			dep_id.value=new_date.print("%e-%m-%Y");
		}
	}
	
}

function empty_fields(arrival_date, departure_date, city) {
	
	var re_date = /^((0[1-9])|([1-2][0-9])|([1-9])|(3[0-1]))\-((0[1-9])|([1-9])|([1][0-2]))\-(2[0-9][0-9][0-9])$/;
	
	if(arrival_date == null || arrival_date == "")
	{
		return alert('"Arrival date" must not be empty');
	}
	if (!re_date.exec(arrival_date))
	{
		return alert('Invalid "Arrival date" format: '+ arrival_date);
	}
	
	if(departure_date == null || departure_date == "") 
	{
		return alert('"Departure date" must not be empty');
	}	
	if (!re_date.exec(departure_date))
	{
		return alert('Invalid "Departure date" format: '+ departure_date);
	}
	if(city == null || city == "")
	{
		return alert('Select city please. Impossible choose not one city, signifies no hotels of this country in DB');
	}
		
	var arrival = ToTime(arrival_date);
	var departure = ToTime(departure_date);						
	if(departure<=arrival)
	{
		return alert('Uncorrect dates');
		
	}
	document.forms['order'].submit();
	
}

function empty_fields_order(arrival_date, departure_date, city) {
	
	var re_date = /^((0[1-9])|([1-2][0-9])|([1-9])|(3[0-1]))\-((0[1-9])|([1-9])|([1][0-2]))\-(2[0-9][0-9][0-9])$/;
	
	if(arrival_date == null || arrival_date == "")
	{
		return alert('"Arrival date" must not be empty');
	}
	if (!re_date.exec(arrival_date))
	{
		return alert('Invalid "Arrival date" format: '+ arrival_date);
	}
	
	if(departure_date == null || departure_date == "") 
	{
		return alert('"Departure date" must not be empty');
	}	
	if (!re_date.exec(departure_date))
	{
		return alert('Invalid "Departure date" format: '+ departure_date);
	}
	if(city == null || city == "")
	{
		return alert('Select city please. Impossible choose not one city, signifies no hotels of this country in DB');
	}
		
	var arrival = ToTime(arrival_date);
	var departure = ToTime(departure_date);						
	if(departure<=arrival)
	{
		return alert('Uncorrect dates');
		
	}
	document.forms['order'].submit();
}

function loadAddBeds(count_rooms, mywidth, add_bed) 
{
	//count rooms
	if(count_rooms<1)
	{
		count_rooms = 0;
	}
	else
	{
		if(count_rooms>100)
		{
			count_rooms = 100
		}
	}
	
	//add_bed
	if(add_bed != null)
	{
		if(add_bed>count_rooms)
		{
			add_bed = count_rooms;
		}
	}
	else
	{
		add_bed = 0;
	}
	
	
	var selecting = '<select name="addbed" style="width: '+mywidth+'px" title="Additional beds">';
	for (i=0; i<=count_rooms; i++)	
	{			
		if(i == add_bed)
		{
			selecting += '<option value="'+i+'" selected>'+i;
		}
		else
		{
			selecting += '<option value="'+i+'">'+i;
		}
		
	}
	selecting += '</select>';
		
	//alert(selecting);
	
	elem = document.getElementById('divaddbed');
	elem.innerHTML = selecting;

}

// NOT JSCal Scripts!

function redrawADCH() {
  return;
	roomSelect = document.getElementById("r");
	roomDiv = document.getElementById("room_info");
	childAgesDiv = document.getElementById("child_ages");
	allAdults = new Array();
	allChildren = new Array();
	allChildAges = new Array();

	for (i = 0; i < 9; i++) {
	  allChildAges[i] = new Array();
	}
	
	
	//displayRoomInfo(); displayChildAges();
	
}



function displayRoomInfo() {
  return;
  numRooms = roomSelect.options[roomSelect.selectedIndex].value;
  s = '';

  if (numRooms > 0 && numRooms <= 20) {
    s += "<table border='0' cellspacing='0' cellpadding='0' align='center'>" +
      "<tr>" +
      "<td >&nbsp;</td>" +
      "<td >Volw.</td>" +
      "<td >Kinderen</td>" +
      "</tr>";
    for (n = 1; n <= numRooms; n++) {
      s += "<tr><td width='78'>Kamer #" + n + "</td>" +
	"<td width='50'><select name='roomPersons[a" + n + "]' onchange='allAdults[" + (n - 1) + "] = this.options[this.selectedIndex].value;'>";
      selectedAdults = allAdults[n - 1] != null ? allAdults[n - 1] : 2;// default # adults on 2
      for (a = 0; a <= 10; a++) {
	s += "<option value='" + a + "'";
	if (a == selectedAdults) { s += " selected"; }// select previously selected adults
	s += ">" + a + "</option>";
      }
      s += "</select></td>" +
	"<td><select name='roomPersons[ch" + n + "]' id='ch" + n + "' " +
	"onchange='allChildren[" + (n - 1) + "] = this.options[this.selectedIndex].value; displayChildAges();'>";
      selectedChildren = allChildren[n - 1] != null ? allChildren[n - 1] : 0;// default # children on 0
      for (ch = 0; ch <= 5; ch++) {
	s += "<option value='" + ch + "'";
	if (ch == selectedChildren) { s += " selected"; }// select previously selected children
	s += ">" + ch + "</option>";
      }
      s += "</select></td>";
    }
    s += "</table>";
  }
  roomDiv.style.display = s == "" ? "none" : "block";
  roomDiv.innerHTML = s;
}

function displayChildAges() {
  return;
  numRooms = roomSelect.options[roomSelect.selectedIndex].value;
  totalChildren = 0;
  mostChildren = 0;// most children in any one room

  for (n = 1; n <= numRooms; n++) {// obtain totalChildren & mostChildren
    childrenSelect = document.getElementById("ch" + n);
    numChildren = parseInt(childrenSelect.options[childrenSelect.selectedIndex].value);
    totalChildren += numChildren;
    mostChildren = Math.max(mostChildren, numChildren);
  }

  if (totalChildren == 0) {// do not display
    childAgesDiv.style.display = "none";
    childAgesDiv.style.visibility = "hidden";
    childAgesDiv.innerHTML = "";
  } else {// display
    s = "<table border='0' cellspacing='2' cellpadding='0' >" +
      "<tr><td width='78'>&nbsp;</td>";
    for (ch = 1; ch <= mostChildren; ch++) {
      s += "<td ";
      if (ch != mostChildren) { s += " width='55'"; }
      s += ">Kind " + ch + " </td>";
    }
    s += "</tr>";
    for (n = 1; n <= numRooms; n++) {
      childrenSelect = document.getElementById("ch" + n);
      numChildren = parseInt(childrenSelect.options[childrenSelect.selectedIndex].value);
      if (numChildren > 0) {// only display room if there are kids for this room
	s += "<tr><td><span width='78'>Room&nbsp;#" + n + "</span></td>";
	for (ch = 1; ch <= mostChildren; ch++) {
	  s += "<td";
	  if (ch != mostChildren) { s += " width='55'"; }
	  s += ">";
	  if (ch <= numChildren) {// display select box
	    selectedAge = (allChildAges[n - 1] != null && allChildAges[n - 1][ch - 1] != null) ?
	      allChildAges[n - 1][ch - 1] : '';// previously selected age, if any
	    // first 2 options are '?' & '<1'
	    s += "<select name='roomPersons[cha" + n + "][" + (ch-1) + "]' onchange='allChildAges[" + (n - 1) + "][" + (ch - 1) + "] = this.options[this.selectedIndex].value;'><option value=''";
	    if (selectedAge == '') { s += " selected"; }// select '?'
	    s += ">?</option><option value='0'";
	    if (selectedAge == '0') { s += " selected"; }// select '<1'
	    s += ">&lt;1</option>";
	    // next options are 1-18
	    for (age = 1; age <= 18; age++) {
	      s += "<option value='" + age + "'";
	      if (selectedAge == age) { s += " selected"; }// select this age
	      s += ">" + age + "</option>";
	    }
	    s += "</select>";
	  } else {// empty cell
	    s += "&nbsp;";
	  }
	  s += "</td>";// end child cell
	}
	s += "</tr>";// end room row
      }
    }
    s += "</table>";
    childAgesDiv.innerHTML = s;
    childAgesDiv.style.display = "block";
    childAgesDiv.style.visibility = "visible";
  }
  
 
  
}

function clear_order()
{
	document.forms['order'].arrival_date.value = '';
	document.forms['order'].departure_date.value = '';
}