function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,ia=MM_preloadImages.arguments; for(i=0; ia.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&id.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function preloadImages() {
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}


function clickRadio(theForm, theField, theVal) {
    document[theForm][theField][theVal].checked = true;

}


function swap(imagename,objectsrc)
	{
	var n=navigator.appName
	var v=parseInt(navigator.appVersion)
        var browsok=((n=="Netscape")&&(v>=3))
        var browsok2=((n=="Microsoft Internet Explorer")&&(v>=4))
        if ((browsok)||(browsok2))
       	//document.images[imagename].src=eval(objectsrc+".src");
       	document.getElementById[imagename].src=eval(objectsrc+".src");
}

function swapSpecial(imagename,objectsrc)
	{
	document.getElementById("kaart").style.display = "none";
	var n=navigator.appName
	var v=parseInt(navigator.appVersion)
        var browsok=((n=="Netscape")&&(v>=3))
        var browsok2=((n=="Microsoft Internet Explorer")&&(v>=4))
        if ((browsok)||(browsok2))
       	document.images[imagename].src=eval(objectsrc+".src");
}

function LTrim(str) {
	if (str.length == 0) {return str};
	intSpaceFound = str.indexOf(" ");
	while (intSpaceFound == 0 ) {
		str = str.substring(1,str.length);
		intSpaceFound = str.indexOf(" ");
	}	
	return str;
}

function RTrim(str) {
	if (str.length == 0) {return str};
	intSpaceFound = str.lastIndexOf(" ");
	while (intSpaceFound > 0 && intSpaceFound == str.length - 1) {
		str = str.substring(0,str.length - 1);
		intSpaceFound = str.lastIndexOf(" ");
	}	
	return str;
}

function Trim(str) {
	str = LTrim(str);
	str = RTrim(str);
	return str;
}


function checkFormLogin(frm, mode){

	var melding = "";
	document.forms[frm].log.value = mode;
	document.forms[frm].action = "actionLogin.php";

	if (mode >= 0){

		//--- Login
		if (Trim(document.forms[frm].email.value) == "emailadres"){
			veld	= "email";
			melding	= "Vul a.u.b. uw email adres in";
		}

		if (mode == 0){
			//--- Password
			if (Trim(document.forms[frm].password.value) == "password"){
				veld	= "password";
				melding	= "Vul a.u.b. uw password in";
			}
		}

		if (Trim(melding) != ""){
			alert(melding);
			document.forms[frm][veld].focus();
			return false;
		}
	}

	document.forms[frm].submit();
	return true;
}

var fouttx 		= "";
function checkFormComp(theForm) {

	var num_of_elements	= theForm.length;
	var radio_checked	= new Array();
//	var checkbox_selected	= true;
	var tx_input		= true;
	var count		= 0;
	var Ptotaal		= 0;
	var bPunten		= 0;

	for (var i=0; i<num_of_elements; i++) {

		//if (!in_array(0, radio_checked) || tx_input) {
		if (tx_input) {

			var theElement = theForm.elements[i];
			var element_type = theElement.type;
			var element_name = theElement.name;
			var element_value = theElement.value;

			//--- Check Text boxes
			if (element_type == "text") {

				//--- Check puntentelling vragen
				if (element_name.substr(0,6) == "Pvraag"){
					if (element_value.length == 0) element_value = "0";
					if (isNaN(Trim(element_value))) {
						fouttx = "Voer s.v.p. een getal in";
						tx_input = false;
					}else{
						Ptotaal = 1*(parseInt(Ptotaal) + parseInt(element_value));
						bPunten = 1;
					}
				}else{
					if (Trim(element_value).length == 0) {
						tx_input = false;
					}
				}
			}

			//--- Check Textarea boxes
			if (element_type == "textarea") {
				if (Trim(element_value).length == 0) {
					tx_input = false;
				}
			}


			//--- Check Radio buttons ...
			if (element_type == "radio" ) {

				myArray = theForm.elements[element_name];
				radio_checked[count] = 0;
				for (a = 0; a < myArray.length; a++){
				   if (myArray[a].checked) radio_checked[count] = 1;
				}
				count++;
			}

		}

	
	// .... End of loop through form elements ....
	}

	//--- Aparte check Punten totaal vraag (moet in totaal 10 zijn)
	if ((Ptotaal != 10) && bPunten == 1) {

		alert("Het totaal van de door u gegeven punten is niet 10.\n");
		return false;
	}

	if (in_array(0, radio_checked) || !tx_input) {
		alert("U heeft niet alle vragen beantwoord.\n" + fouttx + "\n");
		return false;
	}else{
		theForm.submit();
	}

}



function in_array(stringToSearch, arrayToSearch) {
	for (s = 0; s < arrayToSearch.length; s++) {
		thisEntry = arrayToSearch[s].toString();
		if (thisEntry == stringToSearch) {
			return true;
		}
	}
	return false;
}




function checkFormKandidaat() {
	var melding = "";
	
	//--- Voornaam
	if (Trim(document.forms[1].voornaam.value) == ""){
		veld	= "voornaam";
		melding = "Vul a.u.b. uw voornaam in\n";
	}

	//--- Achternaam
	if (Trim(document.forms[1].achternaam.value) == ""){
		veld	= "achternaam";
		melding	+= "Vul a.u.b. uw achternaam in\n";
	}

	//--- Geboortedatum
	if (Trim(document.forms[1].geboortedatum.value) == ""){
		veld	= "geboortedatum";
		melding	+= "Vul a.u.b. uw geboortedatum in\n";
	}
	//--- aparte datum check
	if (!ValidateDate(document.forms[1].geboortedatum.value)){
		veld	= "geboortedatum";
		melding	+= "Vul a.u.b. een geldige geboortedatum in\n";
	}

	//--- Email
	if (Trim(document.forms[1].email.value) == ""){
		veld	= "email";
		melding	+= "Vul a.u.b. uw emailadres in in\n";
	}
	
	//--- aparte email check
	if (!emailCheck(document.forms[1].email.value)){
		veld	= "email";
		melding	+= "Vul a.u.b. een geldig e-mail adres in\n";
	}
	
	if (Trim(melding) != ""){
		alert(melding);
		//document.forms[1][veld].focus();
		return false;
	}else{
		document.forms[1].submit();
		return true;
	}
}



function checkFormGemeente() {
	var melding = "";

	//--- Contactpersoon
	if (Trim(document.forms[1].contactpersoon.value) == ""){
		veld	= "contactpersoon";
		melding	= "Vul a.u.b. uw naam in";
	}
	
	//--- Gemeente
	if (Trim(document.forms[1].gemeente.value) == ""){
		veld	= "gemeente";
		melding	= "Vul a.u.b. de naam van de gemeente in";
	}

	//--- Email
	if (Trim(document.forms[1].email.value) == ""){
		veld	= "email";
		melding	= "Vul a.u.b. een emailadres in in";
	}
	
	//--- aparte email check
	if (!emailCheck(document.forms[1].email.value)){
		veld	= "email";
		melding	= "Vul a.u.b. een geldig e-mail adres in";
	}
	
	if (Trim(melding) != ""){
		alert(melding);
		document.forms[1][veld].focus();
		return false;
	}else{
		document.forms[1].submit();
		return true;
	}
}


function checkFormNieuwsbrief() {
	var melding = "";

	//--- Naam
	if (Trim(document.forms[1].naam.value) == ""){
		veld	= "naam";
		melding	= "Vul a.u.b. uw naam in";
	}
	
	//--- Email
	if (Trim(document.forms[1].email.value) == ""){
		veld	= "email";
		melding	= "Vul a.u.b. een emailadres in in";
	}
	
	//--- aparte email check
	if (!emailCheck(document.forms[1].email.value)){
		veld	= "email";
		melding	= "Vul a.u.b. een geldig e-mail adres in";
	}
	
	if (Trim(melding) != ""){
		alert(melding);
		document.forms[1][veld].focus();
		return false;
	}else{
		document.forms[1].submit();
		return true;
	}
}



function emailCheck(email){

	// email check
	if (email.value == ""){
		return false;
	}else{
		var temp     = email;
		var AtSym    = temp.indexOf('@');
		var Period   = temp.lastIndexOf('.')
		var Space    = temp.indexOf(' ')
		var Length   = temp.length - 1   // Array is from 0 to length-1

		if ((AtSym < 1) ||                  // '@' cannot be in first position
			(Period <= AtSym+2) ||            // Must be atleast one valid char btwn '@' and '.'
			(Period == Length ) ||            // Must be atleast one valid char after '.'
			(Space  != -1))                   // No empty spaces permitted
			{
				return false;
			}
	}
	return true;
}


function checkEmailIndex(email){
	if (!emailCheck(email)){
		alert ("Vul a.u.b. een geldig e-mail adres in");
		document.forms[0].email.focus();
		return false;
	}
	return true;
}



/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "-";
var minYear=1940;
var maxYear=2000;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

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 pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("De schrijfwijze voor geboortedatum is : dd-mm-jjjj")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Geef alstublieft een juiste maand")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Geef alstublieft een juiste dag")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Geef alstublieft een juist jaar (4 getallen) tussen "+minYear+" en "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Geef alstublieft een juiste datum")
		return false
	}
return true
}

function ValidateDate(){
	var dt=document.forms[1].geboortedatum
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
    return true
 }



function submitForm(jump, action){
	document.forms[1].jumpto.value = jump;
	document.forms[1].action = action;
	document.forms[1].submit();
}

function newwin(url){
	window.open (url, "link", "width=700,height=450,resizable=yes,toolbar=yes, scrollbars=yes");
}