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


function submit_onclick(obj,post,dontShowMessage, dontReturnEmptyFields)
{
	
	var msg='';
	var form=document.getElementById(obj);	
	var el = form.getElementsByTagName('label');
	var emptyObligedFields = new Array();
	
	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{
				var tmpErrMsg = chckField(form.elements[i],form.elements[i].title);
				msg = msg + tmpErrMsg;
			}
			
			var tmpArr = [2];
			tmpArr[0] = form.elements[i].id;
			tmpArr[1] = (tmpErrMsg=='')?false:true;
			
			if(form.elements[i].type=='text')emptyObligedFields.push(tmpArr);
			
		}
	}
	
	for (var e=0; e<el.length; e++) { //check for radio/checkboxes
		var objLabel = el[e];
		
		if(!objLabel.getAttribute('id') || objLabel.getAttribute('id') == '')continue;
		var domLabel = document.getElementById(objLabel.getAttribute('id'));
		var domLabelText = document.getElementById(objLabel.getAttribute('id')).innerHTML;
		var id_1 = domLabel.id.replace('lbl','');
		
		if(!document.getElementById(id_1+'_group')) continue;
			
		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++) 
		{
			//alert(allInputTags[c].checked)
			if (allInputTags[c].checked) {
				radio_checked1 = true;
				radio_result = allInputTags[c].value;
				break;
			}
		}
		if(!radio_checked1)
			msg=msg + '- '+allInputTags[0].title +'\n';
		
		var tmpArr = [2];
		tmpArr[0] = spanObj.id;
		tmpArr[1] = !radio_checked1;
		emptyObligedFields.push(tmpArr);
	}
	if(obj == 'frmProfile'){
		if(document.getElementById('username').value!=''){
			if(!UserOK) {
				msg=msg + '- Uw loginnaam is reeds in gebruik\n';
				errorLayout(document.getElementById('username'),false);
			}else{
				errorLayout(document.getElementById('username'),true);
			}
		}
	}
	if(obj == 'frmGuestbook'){
		var qty = document.getElementById('charQty').value
		if(document.getElementById('message').value.length > qty){
			msg=msg + '- Maximaal '+qty+' tekens toegestaan.\n';
			errorLayout(document.getElementById('message'),false);
		}else{
			errorLayout(document.getElementById('message'),true);
		}
	}
	if(obj == 'frmUploadImage'){
		var img = document.getElementById('image').value
		var ext = img.substr((img.length-3),img.length).toLowerCase()
		if(ext!='jpg' && ext!='gif') {
			alert('Alleen afbeelding met extensie .jpg of .gif zijn toegestaan.')
			return false;
		}
	}
	if(obj == 'frmProfile' || obj == 'frmChangePassword') {
		if(document.getElementById('password').value!=document.getElementById('passwordBis').value) {
			msg=msg + '- Wachtwoorden zijn niet aan elkaar gelijk\n';
			errorLayout(document.getElementById('password'),false);
			errorLayout(document.getElementById('passwordBis'),false);
		}else{
			if(document.getElementById('password').value==''){
				msg=msg + '- Wachtwoord\n';
				errorLayout(document.getElementById('password'),false);
				errorLayout(document.getElementById('passwordBis'),false);
			}else{
				errorLayout(document.getElementById('password'),true);
				errorLayout(document.getElementById('passwordBis'),true);
			}
		}
	}
	if(msg!='') 
	{
		
		if(!dontShowMessage)alert("De volgende velden zijn verplicht:\n" + msg);
		
		if(!dontReturnEmptyFields)	return false;
		else  						return emptyObligedFields;
		
		
	}	
	else 
	{
		if(post) form.submit();
	}
}

function showErrorMessage(errorElement, emptyFields){
	
	
	if(errorElement!='')
	{
		if(document.getElementById(errorElement))
		{
			
			var obj = document.getElementById(errorElement);
			var currClass = obj.className;
			
			if(emptyFields.length>0)obj.className = currClass.replace("inactive", "active");
			else obj.className = currClass.replace("active", "inactive");
		}
	}

	if(emptyFields.length>0)
	{
		for(var arr in emptyFields)
		{
			var obj = emptyFields[arr];
			var lblObj = "lbl_"+obj[0];
			//alert("lblObj["+lblObj+"]")
			if(!document.getElementById(lblObj)) 
			{
				lblObj = obj[0];
				if(!document.getElementById(lblObj))continue;
			}
			//else 								 lblObj = obj[0];
			//alert("lblObj["+lblObj+"]");
	
			//continue;
			var field = document.getElementById(lblObj);
			
			if(obj[1])
			{
				if(field.className.indexOf("correct")==-1)field.className = field.className+" wrong";
				else field.className = field.className.replace("correct","wrong");
			}
			else
			{
				if(field.className.indexOf("wrong")>-1)field.className = field.className.replace("wrong","correct");
			}
			
		}
	}
	
	return false;
	
}


//place your checks here please
function chckField(obj,title) {
	var err = ''
	if (obj.id.indexOf('email')>-1 && obj.value!=''){
		if (!isEmail(obj.value)){
			err = err + "- Het emailadres is niet correct\n"  
			errorLayout(obj,false);
		}else{
			errorLayout(obj,true);
		}
	}
	if (obj.id.indexOf('_tel')>-1 && obj.value!=''){
		if (obj.value.length<10){
			err = err + "- Een telefoonnummer dient 10 tekens lang te zijn\n"
			errorLayout(obj,false);
		}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
		if (!isDate(thisDate)){
			err = err + "- "+obj.title+" incorrect\n"  
			errorLayout(obj,false);
			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 = err + "- "+obj.title+" kan niet in de toekomst liggen\n"  
				errorLayout(obj,false);
				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('birthDD')>-1 && obj.value!=''){
			if (!FV_IsDateIsBirthDate(thisDate)){
				err = err + "- De minimale leeftijd is 18 jaar\n"  
				errorLayout(obj,false);
				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 = "- " + title + "\n";
			errorLayout(obj,false);
			}
		else {
			errorLayout(obj,true);
		}
	}
	return err
}

function errorLayout(obj,ok){ //set colors submit_onclick form if error
	if(ok){
		obj.style.backgroundColor = "";
		obj.style.color = "";
	}else{
		obj.style.backgroundColor = "#eeeeee";
		obj.style.color = "";
	}
}

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){
		getLocs()
	}
}


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('Een telefoonnummer kan max. 10 cijfers lang te zijn.')
	}
}

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)  ){
				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 doElfCheck(bankNummer) {
  var totaal = 0
  var bankgiro = bankNummer.value
  var oneToTen = new Array()
  if (bankgiro.length == 9) {
	  oneToTen[0]=10*bankgiro.substring(0,0)
	  oneToTen[1]=9*bankgiro.substring(0,1)
	  oneToTen[2]=8*bankgiro.substring(1,2)
	  oneToTen[3]=7*bankgiro.substring(2,3)
	  oneToTen[4]=6*bankgiro.substring(3,4)
	  oneToTen[5]=5*bankgiro.substring(4,5)
	  oneToTen[6]=4*bankgiro.substring(5,6)
	  oneToTen[7]=3*bankgiro.substring(6,7)
	  oneToTen[8]=2*bankgiro.substring(7,8)
	  oneToTen[9]=1*bankgiro.substring(8,9)
	  for (i=0;i<10;i++){
	    totaal=totaal+oneToTen[i]
	  }
	  totaal=totaal/11
	  if (totaal!=Math.round(totaal)){
	  	return "- Ongeldig bank/girorekening" + "\n";
	  } else {
			return ""
	  }
  }else if (bankgiro.length == 10) {
	  oneToTen[0]=10*bankgiro.substring(0,1)
	  oneToTen[1]=9*bankgiro.substring(1,2)
	  oneToTen[2]=8*bankgiro.substring(2,3)
	  oneToTen[3]=7*bankgiro.substring(3,4)
	  oneToTen[4]=6*bankgiro.substring(4,5)
	  oneToTen[5]=5*bankgiro.substring(5,6)
	  oneToTen[6]=4*bankgiro.substring(6,7)
	  oneToTen[7]=3*bankgiro.substring(7,8)
	  oneToTen[8]=2*bankgiro.substring(8,9)
	  oneToTen[9]=1*bankgiro.substring(9,10)
	  for (i=0;i<10;i++){
	    totaal=totaal+oneToTen[i]
	  }
	  totaal=totaal/11
	  if (totaal!=Math.round(totaal)){
	  	return "- Ongeldig bank/girorekening" + "\n";
	  } else {
			return ""
		}
  }
	return ""
}

function delPMs(frm){
	var span = document.getElementById('checkboxes').getElementsByTagName('INPUT')
	var itemSelected = false
	for(i=0;i<span.length;i++){
		if(span[i].type=='checkbox'){
			if(!itemSelected) itemSelected = span[i].checked
		}
	}
	if(!itemSelected){
		alert('Er zijn geen berichten geselecteerd.')
		return false
	}
	document.getElementById(frm).submit()
}