//A function to write to a div layer in the different browsers.
function writeLayer(ID,parentID,sText) 
{ 
	if (document.layers) 
  { 
  	var oLayer; 
  	if(parentID)
  		oLayer = eval('document.' + parentID + '.document.' + ID + '.document'); 
  	else
  		oLayer = document.layers[ID].document; 
  	oLayer.open(); 
  	oLayer.write(sText); 
  	oLayer.close(); 
  } 
  else if (parseInt(navigator.appVersion)>=5&&navigator.appName=="Netscape") 
  { 
    document.getElementById(ID).innerHTML = sText; 
  } 
  else if (document.all) 
  {
    document.all[ID].innerHTML = sText; 
  }
  return;
}   //end function writeLayers


//THIS FUNCTION WILL CHANGE THE NAME OF A CLASS FOR A DIV
function changeClassName(ID, parentID, newClassName)
{
  if (document.layers) 
  { 
  	var oLayer; 
  	if(parentID)
  		oLayer = eval('document.' + parentID + '.document.' + ID + '.document'); 
  	else
  		oLayer = document.layers[ID].document; 
  	//oLayer.open(); 
  	//oLayer.write(sText); 
  	//oLayer.close(); 
  	alert('oops, error!');
  } 
  else if (parseInt(navigator.appVersion)>=5&&navigator.appName=="Netscape") 
  { 
    //CHANGE THE DIV CLASS
    document.getElementById(ID).className = newClassName;
  } 
  else if (document.all) 
  {
    document.all[ID].className = newClassName;
  }
  return;
} //end function 


function validatePassword(obj,minLenght,maxLenght) 
{
    var error = "";
    var illegalChars = /[\W_]/; // allow only letters and numbers 
 
    if (obj.value == "") 
    {
      error = "You didn't enter a password.\n";
    } 
    else if ((obj.value.length < minLenght) || (obj.value.length > maxLenght)) 
    {
      error = "The password is the wrong length. The minimum lenght is: "+minLenght+" and the maximum lenght is: "+maxLenght+" \n";
    } 
    else if (illegalChars.test(obj.value)) 
    {
      error = "The password contains illegal characters.\n";
    } 
    else if (!((obj.value.search(/(a-z)+/)) && (obj.value.search(/(0-9)+/)))) 
    {
      error = "The password must contain at least one numeral.\n";
    }
   return error;
}  //end function validatePassword()

function trim(s)
{
  return s.replace(/^\s+|\s+$/, '');
}

function validateEmail(obj) 
{
  var error="";
  var tobj = trim(obj.value);                        // value of field with whitespace trimmed off
  var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
  var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
  
  if (obj.value == "") 
  {
    error = "You didn't enter an email address.\n";
  } 
  else if (!emailFilter.test(tobj)) 
  {              //test email for illegal characters
    error = "Please enter a valid email address.\n";
  } 
  else if (obj.value.match(illegalChars)) 
  {
    error = "The email address contains illegal characters.\n";
  }
  return error;
} //end function validateEmail()

function isOnlyAlphanumericNoSpaces(string)
{
  //checks to see if there is a white space, and non-alphanumeric charachters
  if(!/^[\w-.]+$/i.test(string))
    return false;
  else
    return true;
} //end function isOnlyAlphanumericNoSpaces()


//PARAMETERS - IDName = the id of the object, fade = true or false, fadeDuration = seconds to fade

function toggleDiv(IDName, fade, fadeDuration) 
{
	var el = document.getElementById(IDName);
	if(fade == false )
	 el.style.display = (el.style.display != 'none' ? 'none' : '' );
	else
	{
    //the content will appear or disappear in form of a fade in or out
    if(el.style.display == '') 
      Effect.Fade(IDName,{duration: fadeDuration});
    else
      Effect.Appear(IDName,{duration: fadeDuration});
  }
} //end function toggle()


function getLocalTimezoneAndDateTime()
{
  //DEFINE GLOBAL VARIABLES
  //SET THE LOCAL TIMEZONE
  var rightNow = new Date();
  var localTimezone = dateFormat(rightNow, "Z");
  var localDateTime = dateFormat(rightNow,"Y-m-d");
  //var localTimezoneOffset = dateFormat(rightNow, "o");
  return array(localTimezone,localDateTime);
}


/*
	Date Format 1.1
	(c) 2007 Steven Levithan <stevenlevithan.com>
	MIT license
	With code by Scott Trenda (Z and o flags, and enhanced brevity)
	http://blog.stevenlevithan.com/archives/date-time-format
*/

/*** dateFormat
	Accepts a date, a mask, or a date and a mask.
	Returns a formatted version of the given date.
	The date defaults to the current date/time.
	The mask defaults ``"ddd mmm d yyyy HH:MM:ss"``.
*/
var dateFormat = function () {
	var	token        = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloZ]|"[^"]*"|'[^']*'/g,
		timezone     = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (value, length) {
			value = String(value);
			length = parseInt(length) || 2;
			while (value.length < length)
				value = "0" + value;
			return value;
		};

	// Regexes and supporting functions are cached through closure
	return function (date, mask) {
		// Treat the first argument as a mask if it doesn't contain any numbers
		if (
			arguments.length == 1 &&
			(typeof date == "string" || date instanceof String) &&
			!/\d/.test(date)
		) {
			mask = date;
			date = undefined;
		}

		date = date ? new Date(date) : new Date();
		if (isNaN(date))
			throw "invalid date";

		var dF = dateFormat;
		mask   = String(dF.masks[mask] || mask || dF.masks["default"]);

		var	d = date.getDate(),
			D = date.getDay(),
			m = date.getMonth(),
			y = date.getFullYear(),
			H = date.getHours(),
			M = date.getMinutes(),
			s = date.getSeconds(),
			L = date.getMilliseconds(),
			o = date.getTimezoneOffset(),
			flags = {
				d:    d,
				dd:   pad(d),
				ddd:  dF.i18n.dayNames[D],
				dddd: dF.i18n.dayNames[D + 7],
				m:    m + 1,
				mm:   pad(m + 1),
				mmm:  dF.i18n.monthNames[m],
				mmmm: dF.i18n.monthNames[m + 12],
				yy:   String(y).slice(2),
				yyyy: y,
				h:    H % 12 || 12,
				hh:   pad(H % 12 || 12),
				H:    H,
				HH:   pad(H),
				M:    M,
				MM:   pad(M),
				s:    s,
				ss:   pad(s),
				l:    pad(L, 3),
				L:    pad(L > 99 ? Math.round(L / 10) : L),
				t:    H < 12 ? "a"  : "p",
				tt:   H < 12 ? "am" : "pm",
				T:    H < 12 ? "A"  : "P",
				TT:   H < 12 ? "AM" : "PM",
				Z:    (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
				o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4)
			};

		return mask.replace(token, function ($0) {
			return ($0 in flags) ? flags[$0] : $0.slice(1, $0.length - 1);
		});
	};
}();

// Some common format strings
dateFormat.masks = {
	"default":       "ddd mmm d yyyy HH:MM:ss",
	shortDate:       "m/d/yy",
	mediumDate:      "mmm d, yyyy",
	longDate:        "mmmm d, yyyy",
	fullDate:        "dddd, mmmm d, yyyy",
	shortTime:       "h:MM TT",
	mediumTime:      "h:MM:ss TT",
	longTime:        "h:MM:ss TT Z",
	isoDate:         "yyyy-mm-dd",
	isoTime:         "HH:MM:ss",
	isoDateTime:     "yyyy-mm-dd'T'HH:MM:ss",
	isoFullDateTime: "yyyy-mm-dd'T'HH:MM:ss.lo"
};

// Internationalization strings
dateFormat.i18n = {
	dayNames: [
		"Sun", "Mon", "Tue", "Wed", "Thr", "Fri", "Sat",
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	],
	monthNames: [
		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
	]
};

// For convenience...
Date.prototype.format = function (mask) {
	return dateFormat(this, mask);
}

function ajaxUpdaterAddLocalTime(link,fieldToUpdate,action)
{
  new Ajax.Updater(fieldToUpdate, link, {method: 'post', postBody: 'action='+action});
}

//function is being used for schedule
function redirectLinkAddLocalTimestamp(redirectTo)
{
  var rightNow = new Date();
  var localDateTime = dateFormat(rightNow,"yyyy-mm-dd HH:MM:ss");
  //alert(localDateTime);
  self.location = redirectTo+"&local_dt="+localDateTime;
  //self.location = redirectTo;
}

/* ADMIN FUNCTIONS */
function viewInfo(link,updateField,id)
{
  alert('selected id ' +id);
} //end function viewInfo