// JavaScript Document
//disable select menu options in IE, we'll use this for FF too cause we're changing disabled color
var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;

/* window.onload */SetSelect = function() {
	if (document.getElementsByTagName) {
		var s = document.getElementsByTagName("select");

		if (s.length > 0) {
			window.select_current = new Array();

			for (var i=0, select; select = s[i]; i++) {
				select.onfocus = function(){ window.select_current[this.id] = this.selectedIndex; }
				select.onchange = function(){ restore(this); }
				emulate(select);
			}
		}
	}
}

function restore(e) {//catches onchange event for select menu
	if (e.options[e.selectedIndex].disabled) {
		e.selectedIndex = window.select_current[e.id];
	}/*mediacurrent 031707*/else{
		//document.getElementById('enterTickets').style.display = 'inline';
		if(e.selectedIndex!=0){
			document.getElementById('btnpurchase').style.display='inline';
		}else{
			document.getElementById('btnpurchase').style.display='none';
		}
	}
}

function emulate(e) {
	for (var i=0, option; option = e.options[i]; i++) {
		if (option.disabled) {
			option.style.color = "#6a7fbf";
		}
		else {
			option.style.color = "#ffffff";
		}
	}
}
//end disable select menu options in IE

function CheckFacultyEmail(email, redirect){
var arr = new Array();
var emailDomain = email.substr(email.indexOf('@')+1);
var isEmail = false;

arr.push('admiss.emory.edu');
arr.push('ap.emory.edu');
arr.push('as.emory.edu');
arr.push('asdev.emory.edu');
arr.push('benfranklinacademy.org');
arr.push('bimcore.emory.edu');
arr.push('biochem.emory.edu');
arr.push('biology.emory.edu');
arr.push('bjcadm.emory.edu');
arr.push('bme.emory.edu');
arr.push('budget.emory.edu');
arr.push('bursar.emory.edu');
arr.push('bus.emory.edu');
arr.push('cartercenter.emory.edu');
arr.push('cc.emory.edu');
arr.push('cellbio.emory.edu');
arr.push('chem.emory.edu');
arr.push('communications.emory.edu');
arr.push('ctrl.emory.edu');
arr.push('dalailama.emory.edu');
arr.push('dar.emory.edu');
arr.push('ecch.emory.edu');
arr.push('ehc-gate2.eushc.org');
arr.push('ehcweb3.eushc.org');
arr.push('ehso.emory.edu');
arr.push('eleanor.emory.edu');
arr.push('email.emory.edu');
arr.push('emory.edu');
arr.push('emory.org');
arr.push('emoryhealthcare.org');
arr.push('emoryvillage.org');
arr.push('emorywheel.com');
arr.push('endow.emory.edu');
arr.push('epic.emory.edu');
arr.push('euhnotes.eushc.org');
arr.push('eushc.org');
arr.push('exchange.emory.edu');
arr.push('finaid.emory.edu');
arr.push('fmd.emory.edu');
arr.push('genetics.emory.edu');
arr.push('glennumc.org');
arr.push('globalguru.com');
arr.push('hr1.hr.emory.edu');
arr.push('law.emory.edu');
arr.push('learnlink.emory.edu');
arr.push('library.emory.edu');
arr.push('listserv.cc.emory.edu');
arr.push('listserv.emory.edu');
arr.push('mathcs.emory.edu');
arr.push('mccmserver.carlos.emory.edu');
arr.push('media.emory.edu');
arr.push('medimg.emory.edu');
arr.push('microbio.emory.edu');
arr.push('nurse.emory.edu');
arr.push('nursing.emory.edu');
arr.push('ocf2.eushc.org');
arr.push('oz.ped.emory.edu');
arr.push('pay.emory.edu');
arr.push('pbms.emory.edu');
arr.push('ped.emory.edu');
arr.push('pharm.emory.edu');
arr.push('photography.emory.edu');
arr.push('physics.emory.edu');
arr.push('physio.emory.edu');
arr.push('publications.emory.edu');
arr.push('pur.emory.edu');
arr.push('radonc.emory.org');
arr.push('resfac.emory.edu');
arr.push('rmy.emory.edu');
arr.push('rw.ped.emory.edu');
arr.push('simon.eushc.org');
arr.push('sph.emory.edu');
arr.push('tms.telecom.emory.edu');
arr.push('treas.emory.edu');
arr.push('vpbus.emory.edu');
arr.push('web.emory.edu');
//http://carlos.emory.interticket.com/arrival.php?venue_id=2&searchyearmonth=200709&searchday=06&netevent_id=117&datum_display=9/6/2007%207:00:00%20PM&prog_name=Elaine%20Pagels&browser_id=<?= $_COOKIE[$cookieName] ?>
var i;
for (i in arr){
	if(arr[i] == emailDomain){
		//redirect here
		location.href = redirect;// + '&email='+email;
		isEmail = true;
		break;
	}
}
if(!isEmail)alert("You must have a valid Emory University e-mail account.");
}


//change background color of main nav elements
function NavRoll(id, bol){
	var el = document.getElementById(id);
	if(bol){
		el.style.backgroundColor = '#906b44';
	}else{
		el.style.backgroundColor = '';
	}
}

//turn on/off divs in purchase tickets page
function ToggleDivs(div1, div2, bol){
	var el1 = document.getElementById(div1);
	var el2 = document.getElementById(div2);
	if(bol){
		el1.innerHTML = '<a href="javascript:ToggleDivs(\'memControl\',\'memLevels\', false)" class="click">CLICK HERE</a> to close the membership levels';
		el2.style.display = 'block';
	}else{
		el1.innerHTML = '<a href="javascript:ToggleDivs(\'memControl\',\'memLevels\', true)" class="click">CLICK HERE</a> to view the membership levels and to purchase';
		el2.style.display = 'none';		
	}
}

//populate purchase tickets drop down list w/ available time slots and make it visible
function ShowDropDownList(strAvailTimes){
	document.getElementById('selectTime').style.display = 'inline';
	/*  */document.getElementById('select').innerHTML = '<select id="menu1" name="menu1" onchange="javascript:if(this.selectedIndex!=0){document.getElementById(\'btnpurchase\').style.display=\'inline\';}else{document.getElementById(\'btnpurchase\').style.display=\'none\';}">'
							+'<option value="">- Select a Time -</option>'
						/* +'<option value="12:00:00 AM">12:00 AM</option>'
						+'<option value="12:30:00 AM">12:30 AM</option>'
						+'<option value="1:00:00 AM">1:00 AM</option>'
						+'<option value="1:30:00 AM">1:30 AM</option>'
						+'<option value="2:00:00 AM">2:00 AM</option>'
						+'<option value="2:30:00 AM">2:30 AM</option>'
						+'<option value="3:00:00 AM">3:00 AM</option>'
						+'<option value="3:30:00 AM">3:30 AM</option>'
						+'<option value="4:00:00 AM">4:00 AM</option>'
						+'<option value="4:30:00 AM">4:30 AM</option>'
						+'<option value="5:00:00 AM">5:00 AM</option>'
						+'<option value="5:30:00 AM">5:30 AM</option>'
						+'<option value="6:00:00 AM">6:00 AM</option>'
						+'<option value="6:30:00 AM">6:30 AM</option>'
						+'<option value="7:00:00 AM">7:00 AM</option>'
						+'<option value="7:30:00 AM">7:30 AM</option>'
						+'<option value="8:00:00 AM">8:00 AM</option>'
						+'<option value="8:30:00 AM">8:30 AM</option>'
						+'<option value="9:00:00 AM">9:00 AM</option>' */
						+'<option value="9:30:00 AM">9:30 AM</option>'
						+'<option value="10:00:00 AM">10:00 AM</option>'
						+'<option value="10:30:00 AM">10:30 AM</option>'
						+'<option value="11:00:00 AM">11:00 AM</option>'
						+'<option value="11:30:00 AM">11:30 AM</option>'
						+'<option value="12:00:00 PM">12:00 PM</option>'
						+'<option value="12:30:00 PM">12:30 PM</option>'
						+'<option value="1:00:00 PM">1:00 PM</option>'
						+'<option value="1:30:00 PM">1:30 PM</option>'
						+'<option value="2:00:00 PM">2:00 PM</option>'
						+'<option value="2:30:00 PM">2:30 PM</option>'
						+'<option value="3:00:00 PM">3:00 PM</option>'
						+'<option value="3:30:00 PM">3:30 PM</option>'
						+'<option value="4:00:00 PM">4:00 PM</option>'
						+'<option value="4:30:00 PM">4:30 PM</option>'
						+'<option value="5:00:00 PM">5:00 PM</option>'
						+'<option value="5:30:00 PM">5:30 PM</option>'
						+'<option value="6:00:00 PM">6:00 PM</option>'
						/* +'<option value="6:30:00 PM">6:30 PM</option>'
						+'<option value="7:00:00 PM">7:00 PM</option>'
						+'<option value="7:30:00 PM">7:30 PM</option>'
						+'<option value="8:00:00 PM">8:00 PM</option>'
						+'<option value="8:30:00 PM">8:30 PM</option>'
						+'<option value="9:00:00 PM">9:00 PM</option>'
						+'<option value="9:30:00 PM">9:30 PM</option>'
						+'<option value="10:00:00 PM">10:00 PM</option>'
						+'<option value="10:30:00 PM">10:30 PM</option>'
						+'<option value="11:00:00 PM">11:00 PM</option>'
						+'<option value="11:30:00 PM">11:30 PM</option>' */
						+'</select>';
	var el= document.getElementById('menu1');
	var elDate = document.getElementById('date');
	var arrAvailTimes = strAvailTimes.split(',');
	el.selectedIndex = 0;
	elDate.innerHTML = arrAvailTimes[0];

	for(var i=0;i<el.options.length;i++){
		for(var j=1;j<arrAvailTimes.length;j++){
			//if static options in select menu don't match array
			var val = " "+el.options[i].value;//add char leading space to match php implode output 
			if(val != arrAvailTimes[j].substr(0, arrAvailTimes[j].indexOf('::'))){
				el.options[i].style.color = "#6a7fbf";
				el.options[i].disabled = true;
			}else{
				el.options[i].value = val+'::'+arrAvailTimes[j].substr(arrAvailTimes[j].indexOf('::')+2);
				el.options[i].style.color = "#ffffff";
				el.options[i].disabled = false;
				break;//we found a match, exit inner for loop
			}
		}
	}
	SetSelect();
}
//validate promo codes
function ValidPromoCode(code){
var arr = [];
var i;
arr.push('AELOCAL');//AMEX
arr.push('AEGUIDE');//AMEX
arr.push('FAMILY2FAMILY');//WSB
arr.push('GEORGIAAQ');//GA Aquar.
if(code == ''){//user didn't input a code
	return true;
}
for(i in arr){
	if(arr[i] == code){
		return true;
	}
}
return false;
}

function trimAll(sString)
{
	while (sString.substring(0,1) == ' ')
	{
	sString = sString.substring(1, sString.length);
	}
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{
	sString = sString.substring(0,sString.length-1);
	}
	return sString;
}

//validation
function ValidForm(val,code){
	/* if(!IsNumeric(val) || val.length == 0){
		alert('Please enter the number of tickets in a numeric format.');
	} */
	if(val==''){
		alert('Please select an open time.');
	}else if (!ValidPromoCode(trimAll(code))){
		alert('Please enter a valid promotional code.');
	}else{
		var date = document.getElementById('date').innerHTML;// value will be 00/00/0000
		var month = date.substr(0, date.indexOf('/'));
		month = (month.length==1)?'0'+month:month;//add leading zero
		var day = date.substr(date.indexOf('/')+1);
		day = day.substr(0, day.indexOf('/'));
		day = (day.length==1)?'0'+day:day;//add leading zero
		var hour = document.getElementById('menu1').options[document.getElementById('menu1').selectedIndex].value;
		var netEvent = hour.substr(hour.indexOf('::')+2);
		hour = hour.substr(0,hour.indexOf('::'));
		var newHour = hour.substr(0, hour.indexOf(':'));
		var minutes = hour.substr(hour.indexOf(':')+1, 2);
		newHour+=minutes;
		newHour = newHour.substr(newHour.indexOf(' ')+1);//remove leading space
		var year = date.substr(date.lastIndexOf('/')+1);
		document.getElementById('yearmonth').value = year+month;
		document.getElementById('day').value = day;
		document.getElementById('hour').value = newHour;
		document.getElementById('netevent_id').value = netEvent;
		document.getElementById('datum_display').value = formatDate(new Date(getDateFromFormat(month+'/'+day+'/'+year,'MM/dd/y')),'EE d MMM');
		
		document.form1.submit();
	}
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
 }

// ===================================================================
// Author: Matt Kruse <matt@mattkruse.com>
// WWW: http://www.mattkruse.com/
//
// NOTICE: You may use this code for any purpose, commercial or
// private, without any further permission from the author. You may
// remove this notice from your final code if you wish, however it is
// appreciated by the author if at least my web site address is kept.
//
// You may *NOT* re-distribute this code in any way except through its
// use. That means, you can include it in your product, or your web
// site, or any other form where the code is actually being used. You
// may not put the plain javascript up on your site for download or
// include it in your javascript libraries for download. 
// If you wish to share this code with others, please just point them
// to the URL instead.
// Please DO NOT link directly to my .js files from your site. Copy
// the files to your server and use them there. Thank you.
// ===================================================================

// HISTORY
// ------------------------------------------------------------------
// May 17, 2003: Fixed bug in parseDate() for dates <1970
// March 11, 2003: Added parseDate() function
// March 11, 2003: Added "NNN" formatting option. Doesn't match up
//                 perfectly with SimpleDateFormat formats, but 
//                 backwards-compatability was required.

// ------------------------------------------------------------------
// These functions use the same 'format' strings as the 
// java.text.SimpleDateFormat class, with minor exceptions.
// The format string consists of the following abbreviations:
// 
// Field        | Full Form          | Short Form
// -------------+--------------------+-----------------------
// Year         | yyyy (4 digits)    | yy (2 digits), y (2 or 4 digits)
// Month        | MMM (name or abbr.)| MM (2 digits), M (1 or 2 digits)
//              | NNN (abbr.)        |
// Day of Month | dd (2 digits)      | d (1 or 2 digits)
// Day of Week  | EE (name)          | E (abbr)
// Hour (1-12)  | hh (2 digits)      | h (1 or 2 digits)
// Hour (0-23)  | HH (2 digits)      | H (1 or 2 digits)
// Hour (0-11)  | KK (2 digits)      | K (1 or 2 digits)
// Hour (1-24)  | kk (2 digits)      | k (1 or 2 digits)
// Minute       | mm (2 digits)      | m (1 or 2 digits)
// Second       | ss (2 digits)      | s (1 or 2 digits)
// AM/PM        | a                  |
//
// NOTE THE DIFFERENCE BETWEEN MM and mm! Month=MM, not mm!
// Examples:
//  "MMM d, y" matches: January 01, 2000
//                      Dec 1, 1900
//                      Nov 20, 00
//  "M/d/yy"   matches: 01/20/00
//                      9/2/00
//  "MMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
// ------------------------------------------------------------------

var MONTH_NAMES=new Array('January','February','March','April','May','June','July','August','September','October','November','December','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
var DAY_NAMES=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sun','Mon','Tue','Wed','Thu','Fri','Sat');
function LZ(x) {return(x<0||x>9?"":"0")+x}

// ------------------------------------------------------------------
// isDate ( date_string, format_string )
// Returns true if date string matches format of format string and
// is a valid date. Else returns false.
// It is recommended that you trim whitespace around the value before
// passing it to this function, as whitespace is NOT ignored!
// ------------------------------------------------------------------
function isDate(val,format) {
	var date=getDateFromFormat(val,format);
	if (date==0) { return false; }
	return true;
	}

// -------------------------------------------------------------------
// compareDates(date1,date1format,date2,date2format)
//   Compare two date strings to see which is greater.
//   Returns:
//   1 if date1 is greater than date2
//   0 if date2 is greater than date1 of if they are the same
//  -1 if either of the dates is in an invalid format
// -------------------------------------------------------------------
function compareDates(date1,dateformat1,date2,dateformat2) {
	var d1=getDateFromFormat(date1,dateformat1);
	var d2=getDateFromFormat(date2,dateformat2);
	if (d1==0 || d2==0) {
		return -1;
		}
	else if (d1 > d2) {
		return 1;
		}
	return 0;
	}

// ------------------------------------------------------------------
// formatDate (date_object, format)
// Returns a date in the output format specified.
// The format string uses the same abbreviations as in getDateFromFormat()
// ------------------------------------------------------------------
function formatDate(date,format) {
	format=format+"";
	var result="";
	var i_format=0;
	var c="";
	var token="";
	var y=date.getYear()+"";
	var M=date.getMonth()+1;
	var d=date.getDate();
	var E=date.getDay();
	var H=date.getHours();
	var m=date.getMinutes();
	var s=date.getSeconds();
	var yyyy,yy,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
	// Convert real date parts into formatted versions
	var value=new Object();
	if (y.length < 4) {y=""+(y-0+1900);}
	value["y"]=""+y;
	value["yyyy"]=y;
	value["yy"]=y.substring(2,4);
	value["M"]=M;
	value["MM"]=LZ(M);
	value["MMM"]=MONTH_NAMES[M-1];
	value["NNN"]=MONTH_NAMES[M+11];
	value["d"]=d;
	value["dd"]=LZ(d);
	value["E"]=DAY_NAMES[E+7];
	value["EE"]=DAY_NAMES[E];
	value["H"]=H;
	value["HH"]=LZ(H);
	if (H==0){value["h"]=12;}
	else if (H>12){value["h"]=H-12;}
	else {value["h"]=H;}
	value["hh"]=LZ(value["h"]);
	if (H>11){value["K"]=H-12;} else {value["K"]=H;}
	value["k"]=H+1;
	value["KK"]=LZ(value["K"]);
	value["kk"]=LZ(value["k"]);
	if (H > 11) { value["a"]="PM"; }
	else { value["a"]="AM"; }
	value["m"]=m;
	value["mm"]=LZ(m);
	value["s"]=s;
	value["ss"]=LZ(s);
	while (i_format < format.length) {
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		if (value[token] != null) { result=result + value[token]; }
		else { result=result + token; }
		}
	return result;
	}
	
// ------------------------------------------------------------------
// Utility functions for parsing in getDateFromFormat()
// ------------------------------------------------------------------
function _isInteger(val) {
	var digits="1234567890";
	for (var i=0; i < val.length; i++) {
		if (digits.indexOf(val.charAt(i))==-1) { return false; }
		}
	return true;
	}
function _getInt(str,i,minlength,maxlength) {
	for (var x=maxlength; x>=minlength; x--) {
		var token=str.substring(i,i+x);
		if (token.length < minlength) { return null; }
		if (_isInteger(token)) { return token; }
		}
	return null;
	}
	
// ------------------------------------------------------------------
// getDateFromFormat( date_string , format_string )
//
// This function takes a date string and a format string. It matches
// If the date string matches the format string, it returns the 
// getTime() of the date. If it does not match, it returns 0.
// ------------------------------------------------------------------
function getDateFromFormat(val,format) {
	val=val+"";
	format=format+"";
	var i_val=0;
	var i_format=0;
	var c="";
	var token="";
	var token2="";
	var x,y;
	var now=new Date();
	var year=now.getYear();
	var month=now.getMonth()+1;
	var date=1;
	var hh=now.getHours();
	var mm=now.getMinutes();
	var ss=now.getSeconds();
	var ampm="";
	
	while (i_format < format.length) {
		// Get next token from format string
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		// Extract contents of value based on format token
		if (token=="yyyy" || token=="yy" || token=="y") {
			if (token=="yyyy") { x=4;y=4; }
			if (token=="yy")   { x=2;y=2; }
			if (token=="y")    { x=2;y=4; }
			year=_getInt(val,i_val,x,y);
			if (year==null) { return 0; }
			i_val += year.length;
			if (year.length==2) {
				if (year > 70) { year=1900+(year-0); }
				else { year=2000+(year-0); }
				}
			}
		else if (token=="MMM"||token=="NNN"){
			month=0;
			for (var i=0; i<MONTH_NAMES.length; i++) {
				var month_name=MONTH_NAMES[i];
				if (val.substring(i_val,i_val+month_name.length).toLowerCase()==month_name.toLowerCase()) {
					if (token=="MMM"||(token=="NNN"&&i>11)) {
						month=i+1;
						if (month>12) { month -= 12; }
						i_val += month_name.length;
						break;
						}
					}
				}
			if ((month < 1)||(month>12)){return 0;}
			}
		else if (token=="EE"||token=="E"){
			for (var i=0; i<DAY_NAMES.length; i++) {
				var day_name=DAY_NAMES[i];
				if (val.substring(i_val,i_val+day_name.length).toLowerCase()==day_name.toLowerCase()) {
					i_val += day_name.length;
					break;
					}
				}
			}
		else if (token=="MM"||token=="M") {
			month=_getInt(val,i_val,token.length,2);
			if(month==null||(month<1)||(month>12)){return 0;}
			i_val+=month.length;}
		else if (token=="dd"||token=="d") {
			date=_getInt(val,i_val,token.length,2);
			if(date==null||(date<1)||(date>31)){return 0;}
			i_val+=date.length;}
		else if (token=="hh"||token=="h") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>12)){return 0;}
			i_val+=hh.length;}
		else if (token=="HH"||token=="H") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>23)){return 0;}
			i_val+=hh.length;}
		else if (token=="KK"||token=="K") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>11)){return 0;}
			i_val+=hh.length;}
		else if (token=="kk"||token=="k") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>24)){return 0;}
			i_val+=hh.length;hh--;}
		else if (token=="mm"||token=="m") {
			mm=_getInt(val,i_val,token.length,2);
			if(mm==null||(mm<0)||(mm>59)){return 0;}
			i_val+=mm.length;}
		else if (token=="ss"||token=="s") {
			ss=_getInt(val,i_val,token.length,2);
			if(ss==null||(ss<0)||(ss>59)){return 0;}
			i_val+=ss.length;}
		else if (token=="a") {
			if (val.substring(i_val,i_val+2).toLowerCase()=="am") {ampm="AM";}
			else if (val.substring(i_val,i_val+2).toLowerCase()=="pm") {ampm="PM";}
			else {return 0;}
			i_val+=2;}
		else {
			if (val.substring(i_val,i_val+token.length)!=token) {return 0;}
			else {i_val+=token.length;}
			}
		}
	// If there are any trailing characters left in the value, it doesn't match
	if (i_val != val.length) { return 0; }
	// Is date valid for month?
	if (month==2) {
		// Check for leap year
		if ( ( (year%4==0)&&(year%100 != 0) ) || (year%400==0) ) { // leap year
			if (date > 29){ return 0; }
			}
		else { if (date > 28) { return 0; } }
		}
	if ((month==4)||(month==6)||(month==9)||(month==11)) {
		if (date > 30) { return 0; }
		}
	// Correct hours value
	if (hh<12 && ampm=="PM") { hh=hh-0+12; }
	else if (hh>11 && ampm=="AM") { hh-=12; }
	var newdate=new Date(year,month-1,date,hh,mm,ss);
	return newdate.getTime();
	}

// ------------------------------------------------------------------
// parseDate( date_string [, prefer_euro_format] )
//
// This function takes a date string and tries to match it to a
// number of possible date formats to get the value. It will try to
// match against the following international formats, in this order:
// y-M-d   MMM d, y   MMM d,y   y-MMM-d   d-MMM-y  MMM d
// M/d/y   M-d-y      M.d.y     MMM-d     M/d      M-d
// d/M/y   d-M-y      d.M.y     d-MMM     d/M      d-M
// A second argument may be passed to instruct the method to search
// for formats like d/M/y (european format) before M/d/y (American).
// Returns a Date object or null if no patterns match.
// ------------------------------------------------------------------
function parseDate(val) {
	var preferEuro=(arguments.length==2)?arguments[1]:false;
	generalFormats=new Array('y-M-d','MMM d, y','MMM d,y','y-MMM-d','d-MMM-y','MMM d');
	monthFirst=new Array('M/d/y','M-d-y','M.d.y','MMM-d','M/d','M-d');
	dateFirst =new Array('d/M/y','d-M-y','d.M.y','d-MMM','d/M','d-M');
	var checkList=new Array('generalFormats',preferEuro?'dateFirst':'monthFirst',preferEuro?'monthFirst':'dateFirst');
	var d=null;
	for (var i=0; i<checkList.length; i++) {
		var l=window[checkList[i]];
		for (var j=0; j<l.length; j++) {
			d=getDateFromFormat(val,l[j]);
			if (d!=0) { return new Date(d); }
			}
		}
	return null;
	}