function trim(str)
{
  return( (""+str).replace(/^\s*([\s\S]*\S+)\s*$|^\s*$/,"$1") );
}

//date validation
function checkdate(objName) {
var datefield = objName;
if (chkdate(objName) == false) {
datefield.select();
alert("Ongeldige datum!");
datefield.focus();
return false;
}
else {
return true;
   }
}
function chkdate(objName) {
var strDatestyle = "EU";
var strDate;
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var booFound = false;
var datefield = objName;
var strSeparatorArray = new Array("-"," ","/",".");
var intElementNr;
var err = 0;
var strMonthArray = new Array(12);
strMonthArray[0] = "01";
strMonthArray[1] = "02";
strMonthArray[2] = "03";
strMonthArray[3] = "04";
strMonthArray[4] = "05";
strMonthArray[5] = "06";
strMonthArray[6] = "07";
strMonthArray[7] = "08";
strMonthArray[8] = "09";
strMonthArray[9] = "10";
strMonthArray[10] = "11";
strMonthArray[11] = "11";
strDate = datefield.value;
if (strDate.length < 1) {
return true;
}
for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
strDateArray = strDate.split(strSeparatorArray[intElementNr]);
if (strDateArray.length != 3) {
err = 1;
return false;
}
else {
strDay = strDateArray[0];
strMonth = strDateArray[1];
strYear = strDateArray[2];
}
booFound = true;
   }
}
if (booFound == false) {
if (strDate.length>5) {
strDay = strDate.substr(0, 2);
strMonth = strDate.substr(2, 2);
strYear = strDate.substr(4);
   }
}

if (!strYear || strYear.length == 2) {
strYear = '20' + strYear;
}
// US style
if (strDatestyle == "US") {
strTemp = strDay;
strDay = strMonth;
strMonth = strTemp;
}
intday = parseInt(strDay, 10);
if (isNaN(intday)) {
err = 2;
return false;
}
intMonth = parseInt(strMonth, 10);
if (isNaN(intMonth)) {
for (i = 0;i<12;i++) {
if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
intMonth = i+1;
strMonth = strMonthArray[i];
i = 12;
   }
}
if (isNaN(intMonth)) {
err = 3;
return false;
   }
}
intYear = parseInt(strYear, 10);
if (isNaN(intYear)) {
err = 4;
return false;
}
if (intMonth>12 || intMonth<1) {
err = 5;
return false;
}
if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
err = 6;
return false;
}
if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
err = 7;
return false;
}
if (intMonth == 2) {
if (intday < 1) {
err = 8;
return false;
}
if (LeapYear(intYear) == true) {
if (intday > 29) {
err = 9;
return false;
}
}
else {
if (intday > 28) {
err = 10;
return false;
}
}
}
if (strDatestyle == "US") {
datefield.value = strMonthArray[intMonth-1] + "-" + intday+"-" + strYear;
}
else {
datefield.value = intday + "-" + strMonthArray[intMonth-1] + "-" + strYear;
}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}

function checkyear(datefield) {
	//var strSeparatorArray = new Array("-","/");
	var intElementNr;
	var err = 0;
	strDate = datefield.value;
	strDateArray = strDate.split("-");
	strYear = strDateArray[2];

	//alert (strDateArray[2]);

	if (strDateArray[2] != 2004) {
		alert("U heeft een ongeldig jaar ingevuld!");
		datefield.focus();
	}
}

function validate_mail(){
	email=document.getElementById('contactformulier').email;
		if(email.value == ""){
			return false
		} else if(email.value.indexOf('@')== -1){
			return false
		}else if(email.value.indexOf('.')== -1){
			return false
		}
	return true
 }

function enq_een() {
	verzend = true;
	enq = document.forms[1];
	if (enq.hoe_op_hoogte.value == '' || enq.reden_aankoop.value == '' || enq.bekend_merk.value == '' || enq.bekend_assortiment.value == '' || enq.auto_vergelijk.value == '' || enq.besteding.value == '' || enq.gez_situatie.value == '' || enq.opleiding.value == '' || enq.aankoop_dealer.value == '' || enq.aankoop_presentatie.value == '' || enq.aankoop_info.value == '' || enq.aankoop_service.value == '' || enq.aankoop_breedte.value == '' || enq.aankoop_advies.value == '' || enq.opdehoogte.value == '' || enq.mis_info_tuin.value == '' || enq.mis_info_hillhout.value == '') {
		verzend = false;
		alert("Vul AUB alle vragen in!");
	} else {
		verzend = true;
	}
	if (verzend == true) { document.forms[1].submit(); }
}

function enq_twee() {
	verzend = true
	enq=document.forms[1];
	if (enq.id.value == '' || enq.geslacht.value == '' || enq.naam.value == '' || enq.adres.value == '' || enq.postcode.value == '' || enq.plaats.value == '' || enq.land.value == '' || enq.geboortedatum.value == '' || enq.telefoon.value == '' || validate_mail(enq.email.value) == false || enq.datum_aankoop.value == '' || enq.bedrag_aankoop.value == '' || enq.naam_dealer.value == '' || enq.verder.value == '' || enq.aantal_1.value == '' || enq.code_1.value == '') {
		verzend = false;
		alert("Vul AUB alle vragen in!");
	} else {
		verzend = true;
	}
	if (verzend == true) { document.forms[1].submit(); }
}

function val_contact() {
	scrollTo('0','0');
	veld = document.getElementById('contactformulier');
	
	verzend = true;
	if (trim(veld.naam.value) == '' || trim(veld.naam.value) == '$1') {
		document.getElementById('span_naam').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_naam').style.color = 'black';
	}
	if (trim(veld.adres.value) == '' || trim(veld.adres.value) == '$1'  || trim(veld.huisnummer.value) == '' || trim(veld.huisnummer.value) == '$1') {
		document.getElementById('span_adres').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_adres').style.color = 'black';
	}
	if (trim(veld.postcode.value) == '' || trim(veld.postcode.value) == '$1') {
		document.getElementById('span_postcode').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_postcode').style.color = 'black';
	}
	if (trim(veld.plaats.value) == '' || trim(veld.plaats.value) == '$1') {
		document.getElementById('span_plaats').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_plaats').style.color = 'black';
	}
	if (validate_mail() == false) {
		document.getElementById('span_email').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_email').style.color = 'black';
	}
	if (document.getElementById('span_vraag')!=null) {
		if (trim(veld.vraag.value) == '' || trim(veld.vraag.value) == '$1') {
			document.getElementById('span_vraag').style.color = 'red';
			verzend = false;
		} else {
			document.getElementById('span_vraag').style.color = 'black';
		}
	}
	if (verzend == true) {
		document.getElementById('contactformulier').submit();
	}
}

function val_vraag() {
	scrollTo('0','0');
	veld = document.forms[1];
	verzend = true;
	if (trim(veld.naam.value) == '' || trim(veld.naam.value) == '$1') {
		document.getElementById('span_naam').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_naam').style.color = 'black';
	}
	if (trim(veld.adres.value) == '' || trim(veld.adres.value) == '$1') {
		document.getElementById('span_adres').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_adres').style.color = 'black';
	}
	if (trim(veld.postcode.value) == '' || trim(veld.postcode.value) == '$1') {
		document.getElementById('span_postcode').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_postcode').style.color = 'black';
	}
	if (trim(veld.plaats.value) == '' || trim(veld.plaats.value) == '$1') {
		document.getElementById('span_plaats').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_plaats').style.color = 'black';
	}
	if (validate_mail() == false) {
		document.getElementById('span_email').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_email').style.color = 'black';
	}
        if (trim(veld.vraag.value) == '' || trim(veld.vraag.value) == '$1') {
		document.getElementById('span_vraag').style.color = 'red';
		verzend = false;
	} else {
		document.getElementById('span_vraag').style.color = 'black';
	}
	if (verzend == true) {
		//document.forms[1].submit();
	}
}