// JavaScript Document
var dtCh= "-";
var minYear=1900;
var maxYear=2100;

var errorCaption = '';
var errorCaptionColor = '#cc0000';
var errorInputBackground = '#ff8200';
var errorInputColor = '#ffffff';
var normalInputBackground = '';
var normalInputColor = '';

function submit_onclick(obj,post){
	var msg='';
	var form=document.getElementById(obj);	
	var el = form.getElementsByTagName('label');
	for(i=0;i<form.elements.length;i++){	
		if(form.elements[i].id!=''){
			if(form.elements[i].accessKey!=undefined && form.elements[i].accessKey!=''){ //if form element contains owner attribute
				if(document.getElementById(form.elements[i].accessKey).style.display!='none'){ //then only check if shown
					msg = msg + chckField(form.elements[i],form.elements[i].title)
				}
			}else{
				msg = msg + chckField(form.elements[i],form.elements[i].title)
			}
		}
	}
for (var e=0; e<el.length; e++) { //check for radio/checkboxes
		var objLabel = el[e];
		var domLabel = document.getElementById(objLabel.getAttribute('id'));
		var domLabelText = document.getElementById(objLabel.getAttribute('id')).innerHTML;
		var id_1 = domLabel.id.replace('lbl','')

		var spanObj = document.getElementById(id_1+'_group');
		var radio_checked1 = false;
		var radio_result = '';

		var allInputTags = spanObj.getElementsByTagName('INPUT');
		for (var c=0; c<allInputTags.length; c++) {
			if (allInputTags[c].checked) {
				radio_checked1 = true;
				radio_result = allInputTags[c].value;
				break;
				errorLayout(document.getElementById(allInputTags[c].Id),true);
			}
		}
		if(!radio_checked1) {
			msg=msg + '- '+allInputTags[0].title +'\n';
			errorLayout(document.getElementById(id_1),false);
		}	
	}
	if(obj == 'frmSubscribe'){
		if(document.getElementById('username')){
			if(!UserOK && document.getElementById('username').value!='') {
				msg=msg + '1'
				errorLayout(document.getElementById('username'),false,'Uw loginnaam is reeds in gebruik' + '<br>');
			}else{
				if(document.getElementById('username').value==''){
					errorLayout(document.getElementById('username'),false,'Gebruikersnaam verplicht');
				}else{
					errorLayout(document.getElementById('username'),true);
				}
			}
		}
	}
	if(msg!='') {
		//alert("De volgende velden zijn verplicht:\n" + msg);
		return false;
	}	else {
		if(post) form.submit()
	}
}

//place your checks here please
function chckField(obj,title) {
	var err = ''
	if (obj.id.indexOf('email')>-1){
		if (!isEmail(obj.value) || obj.value==''){
			err = 1
			errorLayout(obj,false,'Het emailadres is niet correct' + '<br>');
			return err
		}else{
			errorLayout(obj,true,'');
		}
	}
	if (obj.id.indexOf('_tel')>-1 && obj.value!=''){
		if (obj.value.length<10){
			err = 1
			errorLayout(obj,false,'Een telefoonnummer dient 10 tekens lang te zijn' + '<br>');
		}else{
			errorLayout(obj,true);
		}
	}
	if (obj.id.indexOf('DD')>-1 && obj.value!=''){
		//var thisDate = obj.value+'-'+document.getElementById(obj.id.replace('DD','MM')).value+'-'+document.getElementById(obj.id.replace('DD','YY')).value
		var thisDate = obj.value
		if (!isDate(thisDate)){
			err = 1
			errorLayout(obj,false,obj.title+' incorrect' + '<br>');
			//errorLayout(document.getElementById(obj.id.replace('DD','MM')),false);
			//errorLayout(document.getElementById(obj.id.replace('DD','YY')),false);
		}else{
			errorLayout(obj,true);
			//errorLayout(document.getElementById(obj.id.replace('DD','MM')),true);
			//errorLayout(document.getElementById(obj.id.replace('DD','YY')),true);
		}
		if(obj.id.indexOf('pastDD')>-1 && obj.value!=''){
			if(!FV_IsDateInPast(thisDate)){
				err = 1
				errorLayout(obj,false,obj.title+' kan niet in de toekomst liggen' + '<br>');
				//errorLayout(document.getElementById(obj.id.replace('DD','MM')),false);
				//errorLayout(document.getElementById(obj.id.replace('DD','YY')),false);
			}else{
				errorLayout(obj,true);
				//errorLayout(document.getElementById(obj.id.replace('DD','MM')),true);
				//errorLayout(document.getElementById(obj.id.replace('DD','YY')),true);
			}
		}
	}else{
		if((obj.value=='' || obj.value==title) && obj.title!=''){
			err = 1
			errorLayout(obj,false,obj.title + " verplicht");
			}
		else {
			errorLayout(obj,true);
		}
	}
	return err
}

function errorLayout(obj,ok,error){ //set colors submit_onclick form if error		
	if(ok){
		obj.style.backgroundColor = normalInputBackground;
		obj.style.color = normalInputColor;
		if(document.getElementById('marker_'+obj.id)) {
			document.getElementById('marker_'+obj.id).innerHTML=''
		}
	}else{
		obj.style.backgroundColor = errorInputBackground;
		obj.style.color = errorInputColor;		
		if(document.getElementById('marker_'+obj.id)) {
			document.getElementById('marker_'+obj.id).innerHTML='&nbsp;' + error
			document.getElementById('marker_'+obj.id).style.color=errorCaptionColor			
		}
	}
}

function isEmail(string) {
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(string)) 
		return true;
	else
		return false;
}

function isNumberKey(e) {
	var k;
	document.all ? k = e.keyCode : k = e.which;
	return ( (k > 47 && k < 58) || k == 46 || k==8 || k==9 || k==0  );
}

function isEnterKey(e) {
	var k;
	document.all ? k = e.keyCode : k = e.which;
	if(k == 13){
		return true;
	}
}


function isTelefoon(obj,e) {
	var k;
	document.all ? k = e.keyCode : k = e.which;
	if(obj.value.length<10){
		return ((k > 47 && k < 58 || k == 46 || k == 8 || k==9 || k==0 || (k > 95 && k < 106) ));
	}else{
		alert(tr_PhoneLength)
	}
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var arrDate = dtStr.split(dtCh)
	strDay=arrDate[0]	
	strMonth=arrDate[1]
	strYear=arrDate[2]
	if(isNaN(strDay) || isNaN(strMonth) || isNaN(strYear)) return false
	if(strDay.length>0 && strMonth.length>0 && strYear.length>0) {
		month=parseInt(strMonth)		
		day=parseFloat(strDay)				
		year=parseInt(strYear)
		if (day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || (day > daysInMonth[month] || daysInMonth[month]==undefined ) || (strYear.length<4)  ){
				//alert(day)
				//return false
		}
		return true
	}else{
		return false
	}
}

function FV_IsDateIsBirthDate(val) {

	var now = new Date();
	var thisYear = now.getFullYear() - 18  //minimum 18 years old
	now.setFullYear(thisYear)
	now = now.getTime(); //NN3

	var valueDate = val.split('-');
	
	var dateToCheck = new Date();
	if (valueDate[2] < 1900) {
		return false;
	}
	dateToCheck.setYear(valueDate[2]);
	dateToCheck.setMonth(valueDate[1]-1);
	dateToCheck.setDate(valueDate[0]);
	var checkDate = dateToCheck.getTime();

	var pastDate = (now > checkDate);

	return pastDate;
}

function FV_IsDateInPast(val) {

	var now = new Date();
	now = now.getTime(); //NN3
	
	var valueDate = val.split('-');
	
	var dateToCheck = new Date();
	dateToCheck.setYear(valueDate[2]);
	dateToCheck.setMonth(valueDate[1]-1);
	dateToCheck.setDate(valueDate[0]-1);
	var checkDate = dateToCheck.getTime();

	var pastDate = (now > checkDate);

	return pastDate;
}

function switchObjDisplay(obj2Show, obj2Hide)
{
	if(obj2Show)document.getElementById(obj2Show).style.display='block';
	if(obj2Hide)document.getElementById(obj2Hide).style.display='none';
}

function clearTextField(frm, fld, exceptionVal)
{
	var formField = document.forms(frm)[fld];
	formField.value = (exceptionVal)?(exceptionVal==formField.value)?"":formField.value:"";
}