function validateRegEx(regex, inputStr, helpText, helpMessage){
	// Kijk of inputStr waarde valideert

	if (!regex.test(inputStr)){
	// De data is niet geldig, dus geeft de helpmessage terug

		if (helpText != null)

			helpText.innerHTML = helpMessage;

		return false;

	}
	else {
	// De waarde is OK

		if (helpText != null)

			helpText.innerHTML = "";

		return true;

	}
}

function validateNonEmpty(inputField, helpText) {
    //Kijk eerst of het inputField een waarde bevat
        return validateRegEx(/.+/,
          inputField.value, helpText,
         "Vul a.u.b een waarde in.");
}


function validateEmail(inputField, helpText){
	// Bekijk eerst de of het inputField een waarde bevat

	if(!validateNonEmpty(inputField,helpText))

	return false;

	//Nu controleren of het inputfield een e-mail address is

	return validateRegEx(/^[\w\.-_\+]+@[\w-]+(\.\w{2,4})+$/,inputField.value, helpText,"Voer een e-mail adres (bijvoorbeeld, nico@stallingbrabant.nl).");
	}

function validateLength(minLength, maxLength, inputField, helpText) {
  // See if the input value contains at least minLength but no more than maxLength characters
  return validateRegEx(new RegExp("^.{" + minLength + "," + maxLength + "}$"),
    inputField.value, helpText,
    "Please enter a value " + minLength + " to " + maxLength +
    " characters in length.");
}

function validateZipCode(inputField, helpText) {
    // First see if the input value contains data
    if (!validateNonEmpty(inputField, helpText))
      return false;

    // Then see if the input value is a ZIP code
    return validateRegEx(/^\d{4}\s?[a-zA-Z]{2}$/,
      inputField.value, helpText,
      "Voeg een postcode in. b.v. 5103 BG");
  }

function validateDate(inputField, helpText) {
  // First see if the input value contains data
  if (!validateNonEmpty(inputField, helpText))
    return false;

  // Then see if the input value is a date
  return validateRegEx(/^\d{2}\/\d{2}\/(\d{2}|\d{4})$/,
    inputField.value, helpText,
    "Please enter a date (for example, 01/14/1975).");
}

function validatePhone(inputField, helpText) {
  // First see if the input value contains data
  if (!validateNonEmpty(inputField, helpText))
    return false;

  // Then see if the input value is a phone number
  return validateRegEx(/^\d{3}-\d{7}|\d{2}-\d{8}|\d{4}-\d{6}$/,
    inputField.value, helpText,
    "Please enter a phone number (for example, 123-456-7890).");
}


function validateRadioButton(thisform) {
    myOption = -1;
    for (i=thisform.ophaal_breng.length-1; i > -1; i--)
    {
    if (thisform.ophaal_breng[i].checked)
        {
        myOption = i; i = -1;
        }
    }
    if (myOption == -1) {
        return false;
    }
    else
    {
        return true;
    }
}

function getTijden()
{

var Obj = document.getElementById('date').value;
var fObj = formatDate(new Date(getDateFromFormat(Obj,'dd/MM/yyyy')),'MM/dd/yyyy');

var dObj = new Date(fObj);

var curr_date = dObj.getDate();
var curr_day = dObj.getDay();

var curr_month = dObj.getMonth();
var curr_year = dObj.getFullYear();

    getOpeningstijden(curr_day, curr_month);

}


function getOpeningstijden(dag, maand)
{

//Openingstijden

//          April t/m Oktober              November t/m Maart
//Maandag  19.00 uur - 20.30 uur        19.00 uur - 20.30 uur
// Dinsdag  19.00 uur - 20.30 uur           gesloten
// Woensdag  gesloten                       gesloten
// Donderdag  19.00 uur - 20.30 uur         gesloten
// Vrijdag  19.00 uur - 20.30 uur       19.00 uur - 20.30 uur
// Zaterdag  09.00 uur - 13.00 uur      09.00 uur - 13.00 uur

    var IntPath = document.return_form.openingstijden;

     document.return_form.openingstijden.options.length = 0;
     //The value returned by getMonth() is a number between 0 and 11. January is 0, February is 1 and so on.
     //The value returned by getDay() is a number between 0 and 6. Sunday is 0, Monday is 1 and so on.

         if (maand == 3 || maand == 4 || maand == 5 || maand == 6 || maand == 7|| maand == 8 || maand == 9)
         {


                if (dag == 1 || dag == 2 || dag == 4 || dag == 5 )
                {
                    IntPath.options[IntPath.options.length] = new Option('19.00 - 20.30','19.00 - 20.30');
                }
                else if  (dag == 6)
                {
                     IntPath.options[IntPath.options.length] = new Option('9.00 - 13.00','9.00 - 13.00');
                }
                else if  (dag == 0 || dag == 3)
                {
                    IntPath.options[IntPath.options.length] = new Option('gesloten','gesloten');
                }
         }
         else (maand == 10 || maand == 11 || maand == 0 || maand == 1 || maand == 2 )
         {
                if (dag == 1 || dag == 5 )
                {
                    IntPath.options[IntPath.options.length] = new Option('19.00 - 20.30','19.00 - 20.30');
                }
                else if  (dag == 6)
                {
                    IntPath.options[IntPath.options.length] = new Option('9.00 - 13.00','9.00 - 13.00');
                }
                else if (dag == 0 || dag == 2 || dag == 3 || dag == 4)
                {
                    IntPath.options[IntPath.options.length] = new Option('gesloten','gesloten');
                }

         }
}


function Checkfields(form) {
if (
    validateNonEmpty(form["ophaal_breng"], form["name_help"]) &&
    validateRadioButton(form) &&
    validateDate(form["date"], form["date_help"]) &&
    validateNonEmpty(form["openingstijden"], form["name_help"]) &&
    validateZipCode(form["postcode"], form["zipcode_help"]) &&
    validateNonEmpty(form["huisnummer"], form["huisnummer_help"]) &&
    //validateNonEmpty(form["naam"], form["naam_help"]) &&
    //validateNonEmpty(form["kenteken"], form["kenteken_help"]) &&
    //validateNonEmpty(form["objectnr"], form["objectnr_help"]) &&
    //validatePhone(form["phone"], form["phone_help"]) &&
    validateEmail(form["email"], form["email_help"]))
    {
    // Submit to the server
        form.submit();
        return false;
    }
    else
    {
       alert("Een of meerdere velden zijn niet ingevuld.");
       return false;
    }
}


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');
// Plaats nul voor maand indien maand < 9 (september)
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();
	}