function trim(str, chars) {
    return ltrim(rtrim(str, chars), chars);
}

function ltrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}

function rtrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}

function toggleDisplay(id, show) {
  var obj;
  if (document.getElementById) {
    obj = document.getElementById(id);
    if (obj != null && show)
      obj.style.display = '';
    else if (obj != null)
      obj.style.display = 'none';
  }
}

function findPos(){
  if(bw.ns4){   //Netscape 4
    x = document.layers.layerMenu.pageX
    y = document.layers.layerMenu.pageY
  }else{ //other browsers
    x=0; y=0; var el,temp
    x=0; y=0; var el,temp
    el = bw.ie4?document.all["divMenu"]:document.getElementById("divMenu");
    if(el.offsetParent){
      temp = el
      while(temp.offsetParent){ //Looping parent elements to get the offset of them as well
        temp=temp.offsetParent; 
        x+=temp.offsetLeft
        y+=temp.offsetTop;
      }
    }
    x+=el.offsetLeft
    y+=el.offsetTop
  }
  //Returning the x and y as an array
  return [x,y]
}

function emptystr(string) {
	var x = 0;
	var chr;
	var empty = true;
	if (string.length) {
		do {
			chr = string.substring(x, x + 1);
			x++;
			empty = (chr == ' ' || chr == '\t' || chr == '\n' || chr == '\r');
		} while (empty && x < string.length);
	}
	return empty;
}

function checkDate(form, item, name) {
  var reg = /^([0-9]+)\-([0-9]+)\-([0-9]+)$/, res;
  var day, month, year, date_error;

  if (!emptystr(document.forms[form].elements[item].value)){

    if (!(res = document.forms[form].elements[item].value.match(reg))) {
      date_error = true;
    }
    else {
      day = parseInt(res[1], 10);
      month = parseInt(res[2], 10) - 1;
      year = parseInt(res[3], 10);
      var date = new Date(year, month, day);

      if (date.getDate() != day || date.getMonth() != month || date.getFullYear() != year)
        date_error = true;
    }

    if (date_error){
      var msg = 'This is not a valid {fieldname}!';
      alert(msg.replace(/{fieldname}/, name));
      document.form_cms.elements[item].focus();
      return false;
    }

  }

  return true;
}

function checkDatePresent(form, item, name) {

   if(checkDate(form, item, name)) {
   	  var now = new Date();
   	  var reg = /^([0-9]+)\-([0-9]+)\-([0-9]+)$/, res;
   	  var day, month, year;
   	  
   	  now = new Date(now.getFullYear(), now.getMonth(), now.getDate());
	  now = now.getTime();
	  res = document.forms[form].elements[item].value.match(reg);
	  
      day = parseInt(res[1], 10);
      month = parseInt(res[2], 10) - 1;
      year = parseInt(res[3], 10);
      var dateToCheck = new Date(year, month, day);	
	  dateToCheck = dateToCheck.getTime(); 
	  if (now > dateToCheck){
      var msg = 'The {fieldname} is in the past!';
      alert(msg.replace(/{fieldname}/, name));
      return false;
	  }
   }
   else
      return false;
   return true;   
}

function checkEmptyFCK(item, name, tabblad){
  var msg;
  if(FCKeditorAPI.GetInstance(item).GetHTML() == '' ){
    msg = 'You have forgotten to fill in (the) {fieldname}!';
    alert(msg.replace(/{fieldname}/, name));
    if (typeof tabblad == 'string')
       showFormTab(tabblad);    
    FCKeditorAPI.GetInstance(item).Focus();
    return false;
  }
  else
    return true;
}

function checkLength(form, item, name, minLength, maxLength) {
  var msg;
  if (!emptystr(document.forms[form].elements[item].value)){
    var value_item = document.forms[form].elements[item].value;
    if ((typeof maxLength == 'undefined') && value_item.length < minLength){
      msg = 'The field {fieldname} must contain a minimum of {minlength} characters!';
      msg = msg.replace(/{fieldname}/, name);
      msg = msg.replace(/{minlength}/, minLength);
      alert(msg);
      document.forms[form].elements[item].focus();
      return false;
    }
    else if ((typeof maxLength != 'undefined') && (value_item.length < minLength || value_item.length > maxLength)) {
      msg = '{fieldname} must be between {minlength} and {maxlength} characters long!';
      msg = msg.replace(/{fieldname}/, name);
      msg = msg.replace(/{minlength}/, minLength);
      msg = msg.replace(/{maxlength}/, maxLength);
      alert(msg);
      document.forms[form].elements[item].focus();
      return false;
    }
  }

  return true;
}

function checkZipcode(form, item, name){
  var pattern=/^[0-9]{4}\s{0,1}[a-zA-Z]{2}$/;

  if (!emptystr(document.forms[form].elements[item].value)){
    if (document.forms[form].elements[item].value.search(pattern) == -1) {
      var msg = 'This is not a valid {fieldname}!';
      alert(msg.replace(/{fieldname}/, name));
      document.forms[form].elements[item].focus();
      return false;
    }
  }

  return true;
}

function checkPhone(form, item, name){
  var pattern=/^(\d{3}-?\d{7}|\d{4}-?\d{6})$/;

  if (!emptystr(document.forms[form].elements[item].value)){
    if (document.forms[form].elements[item].value.search(pattern) == -1) {
      var msg = 'This is not a valid {fieldname}';
      alert(msg.replace(/{fieldname}/, name));
      document.forms[form].elements[item].focus();
      return false;
    }
  }

  return true;
}
function checkPositiveAmount(form, item, name){
  var regEx = /^([0-9]+)$/;
  var regExPunt = /^([0-9]+).([0-9]+)$/;

  if (!emptystr(document.forms[form].elements[item].value)){
      document.forms[form].elements[item].value = document.forms[form].elements[item].value.replace(",",".");
	  if (!regEx.test(document.forms[form].elements[item].value) && !regExPunt.test(document.forms[form].elements[item].value)) {
	      var msg = 'This is not a valid {fieldname}';
	      alert(msg.replace(/{fieldname}/, name));
	      document.forms[form].elements[item].focus();
	      return false;  
	  }else{
	     if(document.forms[form].elements[item].value < 0){
	          var msg = '{fieldname} needs to have a positive value!';
	          alert(msg.replace(/{fieldname}/, name));
	          document.forms[form].elements[item].focus();
	          return false;
          }            
	  }
  }

  return true;
}

function onlyDigits(form, item, name){
  var pattern=/^[0-9]+$/;

  if (!emptystr(document.forms[form].elements[item].value)){
    if (document.forms[form].elements[item].value.search(pattern) == -1) {
      var msg = 'This is not a valid {fieldname}';
      alert(msg.replace(/{fieldname}/, name));
      document.forms[form].elements[item].focus();
      return false;
    }
  }

  return true;
}

function onlyCharacters(form, item, name){
  var pattern=/^[aA-zZ]+$/;

  if (!emptystr(document.forms[form].elements[item].value)){
    if (document.forms[form].elements[item].value.search(pattern) == -1) {
      var msg = 'This is not a valid {fieldname}';
      alert(msg.replace(/{fieldname}/, name));
      document.forms[form].elements[item].focus();
      return false;
    }
  }

  return true;
}

function checkEmpty(item, name, formName){
  var msg;
  if(formName == "undefined")
    formName = "form_cms";

  if (emptystr(document.forms[formName].elements[item].value)){
    msg = 'You have forgotten to fill in (the) {fieldname}!';
    alert(msg.replace(/{fieldname}/, name));
    document.forms[formName].elements[item].focus();
    return false;
  }
  else
    return true;
}

function checkEmail(item, formName){
  var pattern=/(^[\-_\.a-zA-Z0-9]+)@((([0-9]{1,3}\.){3}([0-9]{1,3})((:[0-9])*))|(([a-zA-Z0-9\-]+)(\.[a-zA-Z]{2,})+(\.[a-zA-Z]{2})?((:[0-9])*)))/;
  
  if(formName == "undefined")
    formName = "form_cms";
    
  if (document.forms[formName].elements[item].value.search(pattern) == -1){
    alert('The e-mail address is incorrect!');
    document.forms[formName].elements[item].focus();
    return false;
  }
  else{
    return true;
  }
}

function checkRadio(item){
  for(var i = 0; i < document.form_cms.elements[item].length; i++){
    if(document.form_cms.elements[item][i].checked == true){
      return true;
    }
  }
  alert('You must select a value!');
  return false;
}

function AllowOnlyNumbers(inputfield, myEvent) {        
  var keyOkay = false;

  if(window.event) 
    keyCode = myEvent.keyCode
  else if(myEvent.which)
    keyCode = myEvent.which
  else
    return true;

  if (((keyCode>=48) && (keyCode<=57)) || keyCode == 8)
    keyOkay=true;

  return keyOkay;
}

function AllowOnlyCharacters(inputfield, myEvent) {        
  var keyOkay = false;

  if(window.event)
    keyCode = myEvent.keyCode
  else if(myEvent.which)
    keyCode = myEvent.which
  else
    return true;

  if (((keyCode>=65) && (keyCode<=90)) || ((keyCode>=97) && (keyCode<=122)))
    keyOkay=true;

  return keyOkay;
}

function checkPoll(item){
  for(var i = 0; i < document.form_poll.elements[item].length; i++){
    if(document.form_poll.elements[item][i].checked == true){
      return true;
    }
  }
  alert('You must select a value!');
  return false;
}

function checkPassword(item1, item2){
  if (document.form_cms.elements[item1].value != document.form_cms.elements[item2].value){
    alert('The password and the confirmation of the password do not match!');
    document.form_cms.elements[item1].focus();
    return false;
  }
  else{
    return true;
  }
}

function checkEmptyCheckbox(item, name, formName) {
  var chkd = 0;
  var setGroup = false;

  if(formName == "undefined")
    formName = "form_cms";
    
  for (var i = 0; i < document.forms[formName].elements.length; i++) {
    if(document.forms[formName].elements[i].type == "checkbox"){
      var obj = document.forms[formName].elements[i];
      if (obj.name == item && obj.checked) {
        chkd = 1;
        break;
      }
      setGroup = true;
    }
  }

  if (chkd != 1 && setGroup) {
    alert(name);
    return false;
  }
  else {
    return true;
  }
}

// Check function for form module 
function form_checkField(type, name, label) {
  var msg;
  switch (type) {
    case 'email':
      var valid = true;
      if (!emptystr(document.forms['form_cms'].elements[name].value)){
         valid = checkEmail(name);
      }
      return valid;
      break;
    case 'accountnr':
      return checkLength('form_cms', name, label, 1);
      break;
    case 'bsn':
      return onlyDigits('form_cms', name, label) && checkLength('form_cms', name, label, 9);
      break;
    case 'zipcode':
      return checkZipcode('form_cms', name, label);
      break;
    case 'date_future':
      return checkDatePresent('form_cms', name, label);
      break;      
    case 'date':
      return checkDate('form_cms', name, label);
      break;
    case 'onlynumbers':
      return onlyDigits('form_cms', name, label);
      break;
    case 'onlyalpha':
      return onlyCharacters('form_cms', name, label);
      break;
    case 'phonenr':
      return checkPhone('form_cms', name, label);
      break;      
    case 'positiveamount':
      return checkPositiveAmount('form_cms', name, label);
      break;
  }
  return true;
}

// Validate function for form module 
function form_validateField(type, name, label) {
  var msg;
  switch (type) {
    case 'upload':
      var upload = document.getElementById('upload'+name);
      if (upload.value == 1)
        return true;
      else {
        msg = '{fieldname} is a compulsory field!';
        alert(msg.replace(/{fieldname}/, label));
        return false;
      }
      break;  
    case 'textfield':
    case 'password':
      if (document.forms['form_cms'].elements[name].type != 'hidden')
        return checkEmpty(name, label);
      else
        return true;
      break;
    case 'textarea':
      return checkEmpty(name, label);
      break;
    case 'radio':
    case 'checkbox':
      var sel = false;
      var frm = document.forms['form_cms'];
      for (var i = 0; i < frm.elements.length && !sel; i++)
        sel = (frm.elements[i].name == name && frm.elements[i].checked);

      if (sel)
        return true;
    	else {
        msg = '{fieldname} is a compulsory field!';
        alert(msg.replace(/{fieldname}/, label));
        return false;
      }
      break;
    case 'select':
      if (document.forms['form_cms'].elements[name].selectedIndex == -1) {
        msg = '{fieldname} is a compulsory field!';
        alert(msg.replace(/{fieldname}/, label));
        return false;
      }
      return true;
      break;
  }
  return true;
}

function form_validateForm() {
  var ret = true;

  for (var i = 0; i < form_formValidate.length && ret; i++)
    ret = form_validateField(form_formValidate[i][0], form_formValidate[i][1], form_formValidate[i][2]);

  for (var i = 0; i < form_formChecks.length && ret; i++)
    ret = form_checkField(form_formChecks[i][0], form_formChecks[i][1], form_formChecks[i][2]);
  
  return ret;
}

function form_showhideTextField(textfield, show) {
  var elem = document.forms['form_cms'].elements[textfield];

  if (typeof elem != 'undefined') {
    if (show)
      elem.style.display = '';
    else
      elem.style.display = 'none';
  }
}

function showConfirmation(item, action){

  var text = 'Are you sure you want to  %action the %item ?';
  
  text = text.replace("%item",item);
  text = text.replace("%action",action);
  return confirm(text);

}

function checkURL(item, formName) {
  if(formName == "undefined")
    formName = "form_cms";
    
  var url = document.forms[formName].elements[item].value;

  var urlPattern = /^(http:\/\/|ftp:\/\/|https:\/\/|mailto:)([^\s]+)$/i;
/* FSC: Check on "." removed.*/
  if (!urlPattern.test(url)) {
    alert('The URL is incorrect!');
    document.forms[formName].elements[item].focus();
    return false;
  }
  else {
    return true;
  }
}


function checkEmptySelect(item, name, formName) {
  if(formName == "undefined")
    formName = "form_cms";
    
  if (document.forms[formName].elements[item].selectedIndex == -1) {
    alert('Select a ' + name + '!');
    document.forms[formName].elements[item].focus();
    return false;
  }

  return true;
}
function getCalendarDateFields(from_field, to_field, type_field, formName) {
  if(formName == "undefined")
    formName = "form_cms";
  var field, dateFields = new Array(), nr, pos, j = 0, k1, k2, found1, found2;

  for (var i = 0; i < document.forms[formName].elements.length; i++) {
    field = document.forms[formName].elements[i];

    if (typeof field.name != 'undefined' && field.name.substr(0, from_field.length) == from_field) {
      pos = field.name.indexOf('[');
      if (pos != -1) {
        nr = field.name.substr(pos + 1, field.name.length - pos - 2);

        if (!isNaN(nr)) {
          found1 = false;
          for (k1 = 0; k1 < document.forms[formName].elements.length && !found1; k1++) {
            if (typeof document.forms[formName].elements[k1].name != 'undefined' && document.forms[formName].elements[k1].name == to_field + '[' + nr + ']')
              found1 = true;
          }

          found2 = false;
          for (k2 = 0; k2 < document.forms[formName].elements.length && !found2; k2++) {
            if (typeof document.forms[formName].elements[k2].name != 'undefined' && document.forms[formName].elements[k2].name == type_field + '[' + nr + ']')
              found2 = true;
          }

          if (found1 && found2) {
            dateFields[j] = new Array(field, document.forms[formName].elements[k1 - 1], document.forms[formName].elements[k2 - 1]);
            j++;
          }
        }
      }
    }
  }

  return dateFields;
}

function checkCalendarDates(from_field, to_field, type_field, formName) {
  if(formName == "undefined")
    formName = "form_cms";
  var dateTimeReg = /^([0-9]+)-([0-9]+)-([0-9]+) ([0-9]+):([0-9]+)$/;
  var dateReg = /^([0-9]+)-([0-9]+)-([0-9]+)$/;
  var dateFields, res, fromDate, toDate, dateTime;
  var fromDays, fromMonth, fromYear, fromHour, fromMin, fromSec;
  var toDays, toMonth, toYear, toHour, toMin, toSec;
  var calDates = new Array(), j;

  dateFields = getCalendarDateFields(from_field, to_field, type_field, formName);

  for (var i = 0; i < dateFields.length; i++) {
    dateTime = (dateFields[i][2].options[dateFields[i][2].selectedIndex].value == 'datetime');
    
    if(calDateTime != "undefined"){
        dateTime = calDateTime[getCalendarRowNr(dateFields[i][0])];
    }
    
    if (dateTime && (res = dateTimeReg.exec(dateFields[i][0].value))) {
      fromDays = parseInt(res[1], 10);
      fromMonth = parseInt(res[2], 10) - 1;
      fromYear = parseInt(res[3], 10);
      fromHour = parseInt(res[4], 10);
      fromMin = parseInt(res[5], 10);
      fromSec = 0;
    }
    else if (!dateTime && (res = dateReg.exec(dateFields[i][0].value))) {
      fromDays = parseInt(res[1], 10);
      fromMonth = parseInt(res[2], 10) - 1;
      fromYear = parseInt(res[3], 10);
      fromHour = 0;
      fromMin = 0;
      fromSec = 0;
    }
    else {
      alert('De van datum heeft het verkeerde formaat!');
      dateFields[i][0].focus();
      return false;
    }

    if (dateTime && (res = dateTimeReg.exec(dateFields[i][1].value))) {
      toDays = parseInt(res[1], 10);
      toMonth = parseInt(res[2], 10) - 1;
      toYear = parseInt(res[3], 10);
      toHour = parseInt(res[4], 10);
      toMin = parseInt(res[5], 10);
      toSec = 0;
    }
    else if (!dateTime && (res = dateReg.exec(dateFields[i][1].value))) {
      toDays = parseInt(res[1], 10);
      toMonth = parseInt(res[2], 10) - 1;
      toYear = parseInt(res[3], 10);
      toHour = 0;
      toMin = 0;
      toSec = 0;
    }
    else {
      alert('The to date has an incorrect format!');
      dateFields[i][1].focus();
      return false;
    }

    fromDate = new Date(fromYear, fromMonth, fromDays, fromHour, fromMin, fromSec);
    toDate = new Date(toYear, toMonth, toDays, toHour, toMin, toSec);
    calDates[i] = new Array(fromDate, toDate);

    if (fromDate.getDate() != fromDays || fromDate.getMonth() != fromMonth || fromDate.getFullYear() != fromYear || fromDate.getHours() != fromHour || fromDate.getMinutes() != fromMin || fromDate.getSeconds() != fromSec) {
      alert('The from date is invalid!');
      dateFields[i][0].focus();
      return false;
    }
    else if (toDate.getDate() != toDays || toDate.getMonth() != toMonth || toDate.getFullYear() != toYear || toDate.getHours() != toHour || toDate.getMinutes() != toMin || toDate.getSeconds() != toSec) {
      alert('The to date is invalid!');
      dateFields[i][1].focus();
      return false;
    }
    else if (dateTime && fromDate >= toDate) {
      alert('The from date may not be the same as or later than the to date!');
      dateFields[i][0].focus();
      return false;
    }
    else if (!dateTime && fromDate > toDate) {
      alert('The from date may not be later than the to date!');
      dateFields[i][0].focus();
      return false;
    }
    else {
      for (j = 0; j < i; j++) {
        if (calDates[j][0].getTime() == fromDate.getTime() && calDates[j][1].getTime() == toDate.getTime()) {
          alert('A from/to date may not appear twice!');
          dateFields[i][0].focus();
          return false;
        }
      }
    }
  }

  return true;
}

function checkForm(moduleName, formName, action) {

  switch (moduleName) {
     case 'project':
      switch (action) {

        case 'reaction':
          var ret = (checkEmpty('lastname', 'de achternaam') && checkEmpty('initials', 'de voorletters') && checkRadio('gender', 'het geslacht') &&  checkEmpty('postaddress', 'het Correspondentieadres') && checkEmpty('number', 'het huisnummer')&& checkEmpty('zipcode', 'de postcode')&& checkEmpty('town', 'de Woonplaats') && checkEmail('email') && checkRadio('iscustomer', 'huurt u reeds een woning van Wonen Limburg?'));

          return ret && showConfirmation('het formulier', 'versturen');
          break;
     }
     break;
         
      
           
     case 'member':
      switch (action) {

        case 'lost_new_password':
            return (checkEmpty('new_password', 'the new password') && checkLength('new_password', 'the new password', 6) && checkPassword('new_password', 'new_password2'));
            break;
      
        case 'lost':
            var ret = checkEmpty('email', 'the e-mail address ') && checkEmail('email');

            return ret && showConfirmation('een nieuw wachtwoord', 'require');
            break;
     }
     break;
          
     case 'prikbord':
      switch (action) {
       case 'delete':
        return (showConfirmation('het prikbord', 'verwijderen'));
        break;
       case 'add':
       case 'change':
        if (formName == 'frontend'){
          var ret = (checkEmpty('subject', 'het onderwerp') && checkEmpty('description', 'de omschrijving'));
        }
        else{
          var ret = (checkEmpty('subject', 'het onderwerp') && checkEmpty('content', 'de omschrijving') && checkEmptyCheckbox('categories[]', 'categorie'));
        }
        if (action == 'add')
           return ret && showConfirmation('het prikbord onderwerp', 'toevoegen');
        else
           return ret && showConfirmation('het prikbord onderwerp', 'wijzigen');
        break;
       case 'addphoto':
        var ret = (checkEmpty('photo', 'de foto'));
        return ret && showConfirmation('de prikbord foto', 'toevoegen');
        break;
      }
      break;

        
		case 'cv':
		     switch (formName) {
	        case 'reaction':
	          if (action == 'send')
	            return (checkEmpty('firstname', 'First name') && checkEmpty('lastname', 'the last name')  && checkEmpty('address', 'the address')  && checkEmpty('zipcode', 'Zipcode')  && checkEmpty('city', 'City') && checkEmail('email')  && checkEmpty('motivation', 'the motivation'));
	          else
	            return false;
	          break;		     
		     	case 'cv':
			      switch (action) {
			        case 'delete':
			          return (showConfirmation('het cv', 'verwijderen'));
			          break;
			        case 'add':
			        case 'change':
			          var ret = (checkEmpty('voornaam', 'de voornaam') && checkEmpty('achternaam', 'de achternaam') && checkEmpty('email', 'het e-mailadres') && checkEmail('email') && checkEmpty('adres', 'het adres')&& checkEmpty('postcode', 'de postcode')&& checkEmpty('woonplaats', 'de woonplaats') && checkEmpty('telefoon', 'het telefoonnummer')&& checkEmpty('geboortedatum', 'de geboortedatum')&& checkEmpty('salaris', 'de salarisindicatie'));
			          if (action == 'add')
			             return ret && showConfirmation('het CV', 'toevoegen');
			          else
			             return ret && showConfirmation('het CV', 'wijzigen');
			          break;          
			      }break;
		     	case 'werkervaring':
			      switch (action) {
			        case 'delete':
			          return (showConfirmation('de werkervaring', 'verwijderen'));
			          break;
			        case 'add':
			        case 'change':
			          var ret = (checkEmpty('werkgever', 'de werkgever') &&checkEmpty('functie', 'de functie') && checkEmpty('techomgeving', 'de technische omgeving') && checkEmpty('beschrijving', 'de beschrijving') );
			          if (action == 'add')
			             return ret && showConfirmation('de werkervaring', 'toevoegen');
			          else
			             return ret && showConfirmation('de werkervaring', 'wijzigen');
			          break;          
			      }break;
		     	case 'opleiding':
			      switch (action) {
			        case 'delete':
			          return (showConfirmation('de opleiding', 'verwijderen'));
			          break;
			        case 'add':
			        case 'change':
			          var ret = (checkEmpty('opleiding', 'de opleiding') &&checkEmpty('niveau', 'het niveau') && checkEmpty('instelling', 'de onderwijs instelling') && checkEmpty('diploma', 'het diploma')&& checkEmpty('startdatum', 'de startdatum')&& checkEmpty('enddatum', 'de einddatum') );
			          if (action == 'add')
			             return ret && showConfirmation('de opleiding', 'toevoegen');
			          else
			             return ret && showConfirmation('de opleiding', 'wijzigen');
			          break;          
			      }break;	
		     	case 'taal':
			      switch (action) {
			        case 'delete':
			          return (showConfirmation('de taal', 'verwijderen'));
			          break;
			        case 'add':
			        case 'change':
			          var ret = checkEmpty('taal', 'de taal');
			          if (action == 'add')
			             return ret && showConfirmation('de taal', 'toevoegen');
			          else
			             return ret && showConfirmation('de taal', 'wijzigen');
			          break;          
			      }break;		
		     	case 'competentie':
			      switch (action) {
			        case 'delete':
			          return (showConfirmation('de competentie', 'verwijderen'));
			          break;
			        case 'add':
			        case 'change':
			          var ret = checkEmpty('competentie', 'de competentie');
			          if (action == 'add')
			             return ret && showConfirmation('de competentie', 'toevoegen');
			          else
			             return ret && showConfirmation('de competentie', 'wijzigen');
			          break;          
			      }break;				      		      			      			      
			  }break;
	case 'location':
	  switch (formName) {
	      case 'calendar':
		      switch (action) {
		        case 'delete':
		          return (showConfirmation('The calendar item', 'Delete'));
		          break;
		        case 'add':
		        case 'change':
		          var ret = (checkEmpty('calname', 'the name', formName) && checkEmpty('fromdate[0]', 'the from date', formName) && checkEmpty('todate[0]', 'the to date', formName) );
		
		          if (ret) {
		            ret = (checkEmpty('link', 'the link', formName) && checkURL('link', formName) && checkEmpty('city', 'Town/City', formName));
		          }
		
		          if (ret){
		            ret = (checkDatesfields('fromdate', 'todate', 'datetype', formName) );
		          }

		          if (action == 'add')
		            return ret && showConfirmation('The calendar item', 'add');
		          else
		            return ret && showConfirmation('The calendar item', 'change') ;
		          break;
		      }
         break;
      	  
	     case 'register':
            switch (action) {
			        case 'add':
                        
                        var ret = checkEmpty('name', 'name', formName) && checkEmpty('email', 'E-mail', formName) && checkEmail('email', formName) && checkEmpty('username', 'user name', formName) && checkEmpty('password', 'password', formName) && checkEmptySelect('category', 'club', formName);
                        
                        if (ret && getRadioValue(formName,'translate') == 'ja') {
                            ret = ret && (checkEmptyCheckbox('translate_lan[]', 'You haven\x26#8217;t selected a language through the translation service.', formName) );
				        }
                        if (ret && getRadioValue(formName,'btw') == 'ja') {
                            ret = ret && checkEmpty('btwnumber', 'VAT number', formName);
                        }				        
				       
                        return ret && showConfirmation('data', 'add');
                        break;  
			        case 'change':
                        var ret = checkEmpty('name', 'name', formName) && checkEmpty('email', 'E-mail', formName) && checkEmail('email', formName) && checkEmpty('username', 'user name', formName);
			            return ret && showConfirmation('data', 'change');
			            break;   
             }break;
	  }break;	
    
    case 'ordershopcar':
	  switch (formName) {
	     case 'shopcarform':
          if (action == 'submit')
            return (checkEmpty('voornaam', 'de voornaam') && checkEmpty('achternaam', 'de achternaam') && checkEmail('email') && checkEmpty('adres', 'het adres')&& checkEmpty('adres', 'de postcode')&& checkEmpty('plaats', 'de plaats')); 
          else
            return false;
          break;
	  break;
	  }
  break;
    case 'petitie':
	  switch (formName) {
	     case 'petitie':
          if (action == 'submit')
            return (checkEmpty('petitiename', 'de petitienaam') &&checkEmpty('petitieomschrijving', 'de petitie omschrijving') && checkEmpty('name', 'de naam') && checkEmail('email') && checkEmpty('reden', 'de reden') && confirm('Weet u zeker dat u uw deze petitie wilt toevoegen?')  ); 
          else
            return false;
          break;
	     case 'signpetitie':
          if (action == 'submit')
            return ( checkEmpty('name', 'de naam') && checkEmail('email') && checkEmpty('reden', 'de reden') && confirm('Weet u zeker dat u uw deze petitie wilt tekenen?')  ); 
          else
            return false;
          break;          
	  break;
	  }
    break;  

     case 'projecten':
      switch (action) {
        case 'delete':
          return (showConfirmation('het project', 'verwijderen'));
          break;
        case 'add':
        case 'change':
          var ret = (checkEmpty('gemeente', 'de gemeente') && checkEmpty('kleinekern', 'de kleine kern') && checkEmpty('email', 'het e-mailadres') && checkEmail('email') && checkEmpty('contactpersoon', 'de contactpersoon') && checkEmpty('organisatie', 'de organisatie')&& checkEmpty('telefoon', 'telefoonnummer')&& checkEmpty('projectnaam', 'de projectnaam'));
          if (action == 'add')
             return ret && showConfirmation('het project', 'toevoegen');
          else
             return ret && showConfirmation('het project', 'wijzigen');
          break;
      }
      break; 	
    case 'ecard':
      switch (formName) {
        case 'ecard':
          if (action == 'send')
            return (checkEmpty('ecardid', 'een e-card') && checkEmpty('text', 'het bericht') && checkEmail('fromemail') && checkEmpty('fromname', 'uw naam')&& checkEmpty('fromemail', 'uw email')&& checkEmail('toemail') && checkEmpty('toname', 'de ontvanger')&& checkEmpty('toemail', 'de ontvanger email')); 
          else
            return false;
          break;
      }
      break;

    case 'forum':
      if (action == 'add' || action == 'change') {
        var ret = true;

        if (formName == 'subject') {
          ret = checkEmpty('subject', 'het onderwerp');
        }

        if (typeof document.forms['form_cms'].elements['user'] != 'undefined') {
          ret = ret && checkEmpty('user', 'de naam') && checkEmail('email');
        }

        return (ret && checkEmpty('content', 'het bericht')); 
      }
      else if (action == 'delete' && formName == 'post') {
        return showConfirmation('het bericht', 'verwijderen');
      }
      else
        return false;
      break;
    case 'newsletter':
      switch (formName) {
        case 'member':
          if (action == 'add')
            return (checkEmpty('lastname', 'de achternaam') && checkEmpty('firstname', 'de voornaam') && checkEmail('email') && checkEmptyCheckbox('group[]', 'Selecteer minimaal 1 groep!'));
          else if (action == 'remove')
            return checkEmail('email');
          else
            return false;
      }
      break;
    case 'job':
      switch (formName) {
        case 'tellafriend':
          return (checkEmpty('your_name', 'uw naam') && checkEmail('your_email') && checkEmpty('friend_name', 'de naam van de vriend') && checkEmail('friend_email'));
          break;
        case 'reaction':
          if (action == 'send')
            return (checkEmpty('firstname', 'First name') && checkEmpty('lastname', 'the last name')  && checkEmpty('address', 'the address')  && checkEmpty('zipcode', 'Zipcode')  && checkEmpty('city', 'City') && checkEmail('email')  && checkEmpty('motivation', 'the motivation'));
          else
            return false;
          break;
        case 'member':
          if (action == 'login')
            return (checkEmpty('username', 'de gebruikersnaam') && checkEmpty('password', 'het wachtwoord'));
          else if (action == 'add')
            return (checkEmpty('username', 'de gebruikersnaam') && checkEmpty('password', 'het wachtwoord') && checkPassword('password', 'password_check') && checkEmpty('name', 'de naam') && checkEmpty('email', 'het e-mailadres') && checkEmail('email') && checkEmptyCheckbox('jobcategories[]', 'Selecteer minimaal 1 rubriek!'));
          else if (action == 'change')
            return (checkPassword('password', 'password_check') && checkEmpty('name', 'de naam') && checkEmpty('email', 'het e-mailadres') && checkEmail('email') && checkEmptyCheckbox('jobcategories[]', 'Selecteer minimaal 1 rubriek!'));
          else if (action == 'remove')
            return (checkEmpty('password', 'het wachtwoord') && confirm('Weet u zeker dat u uw registratie wil verwijderen?'));
          break;
        case 'open_application':
          return (checkEmpty('lastname', 'the last name') && checkEmpty('firstname', 'First name') && checkDateSelector('birthday', 'De geboortedatum') &&  checkEmpty('streetname', 'Streetname') && checkEmpty('housenr', 'het huisnummer') && checkEmpty('zipcode', 'Zipcode') && checkEmpty('city', 'City') && checkEmpty('region', 'de regio') && checkEmail('email') && checkEmpty('home_telnr', 'de telefoon thuis') && checkEmpty('education', 'Level of education') && checkEmpty('education_name', 'de naam opleiding') && checkDateSelector('education_date_from', 'From') && checkDateSelectorRange('education_date_from', 'education_date_to') && checkDateSelectorRange('job_date_from', 'job_date_to'));
          break;
        case 'add_job':
          return (checkEmpty('company_name', 'the company name') && checkEmpty('company_streetname', 'Streetname') && checkEmpty('company_housenr', 'het huisnummer') && checkEmpty('company_zipcode', 'Zipcode') && checkEmpty('company_city', 'City') && checkEmpty('company_telnr', 'het telefoonnummer') && checkEmpty('contact_initials', 'de voorletters') && checkEmpty('contact_name', 'the name') && checkEmail('contact_email') && checkEmpty('job_name', 'Position') && checkEmpty('job_region', 'de regio') && checkDateSelector('job_start_date', 'Start date') && checkEmpty('job_week_hours', 'het aantal uren per week'));
          break;
        case 'add_job_flexpool':
        case 'job_change':
          return (checkEmpty('contact_name', 'the name') && checkEmail('contact_email') && checkEmpty('contact_telefoon','telefoon contactpersoon')  && checkEmpty('jobname', 'Position') && checkEmpty('jobdescription', 'omschrijving') && checkEmpty('jobregion', 'de regio') );
          break;   
	     case 'competentie':
			      switch (action) {
			        case 'delete':
			          return (showConfirmation('de competentie', 'verwijderen'));
			          break;
			        case 'add':
			        case 'change':
			          var ret = checkEmpty('competentie', 'de competentie');
			          if (action == 'add')
			             return ret && showConfirmation('de competentie', 'toevoegen');
			          else
			             return ret && showConfirmation('de competentie', 'wijzigen');
			          break;          
			      }break;		                 
      }
      break;
    case 'search':
      if (action == 'search')
        return (checkLength('form_cms', 'search', 'zoekopdracht', 4));
      else
        return false;
    break;
    case 'poll':

      if (action == 'vote')
        return (checkPoll('answer'));
      else
        return false;
      break;
    case 'quiz':

      var item;
      for(var i = 0; i < document.forms['form_cms'].elements.length; i++){
        item = document.forms['form_cms'].elements[i].name;
        if(item.substring(0,8) == "question"){
          var checked = false;
          if(typeof document.forms['form_cms'].elements[item].length == "undefined"){
            if(document.forms['form_cms'].elements[item].checked)
             checked=true;
          }
          else{
            for(var j = 0; j < document.forms['form_cms'].elements[item].length; j++){
              if(document.forms['form_cms'].elements[item][j].checked)
                checked=true;
            }
          }

          if(!checked){
            alert('Je hebt niet alle vragen beantwoord !');
            return false;
          }
        }
      }

      if (document.forms['form_cms'].elements['type'].value == 'quiz') {
        return (checkEmpty('name', 'de naam') && checkEmail('email'));
      }

      return true;

      break;
    case 'medium':
      if (formName == 'comment' && action == 'add') {
        return (checkEmpty('user', 'de naam') && checkEmpty('email', 'het e-mailadres') && checkEmail('email') && checkEmpty('content', 'de tekst'));
      }
      else
        return false;
      break;
    case 'reaction':
      return (checkEmpty('reaction_name', 'de naam') && checkEmpty('reaction_mail', 'het e-mailadres') && checkEmail('reaction_mail') && checkEmpty('reaction_text', 'de reactie'));
    break;
    case 'survey':
      if (typeof document.forms['form_cms'].elements['question_type'] != 'undefined') {
        switch (document.forms['form_cms'].elements['question_type'].value) {
          case 'singleselect':
            return checkSurveySingleMultiSelect(false);
            break;
          case 'multiselect':
            return checkSurveySingleMultiSelect(true);
            break;
          case 'score':
            return checkSurveyScore();
            return true;
            break;
        }
      }
      else if (typeof document.forms['form_cms'].elements['company'] != 'undefined') {
        return (checkEmpty('company', 'de bedrijfsnaam') && checkEmpty('address', 'het adres') && checkRadio('permemployees_categories[]') && checkRadio('tempemployees_categories[]'));
      }
      else
        return true;
      break;
        case 'publication':
            switch (formName) {
                case 'quicksearch':
                    return checkEmpty(formName, 'zipcode', 'de postcode');
                    break;
                
                case 'home_search':
                    return checkEmpty(formName, 'zipcode', 'de postcode');
                    break;

                case 'search_advanced':
                    switch (action) {
                        default:
                            if (!emptystr(document.forms[formName].elements['zipcode'].value)) {
                                return checkEmpty(formName, 'street', 'de straat');
                            }
                            else if (emptystr(document.forms[formName].elements['fulltext'].value)) {
                                alert('Er dient een postcode of een zoektekst ingevuld te worden!');
                                return false;
                            }
                            return true;
                            break;
                    }
                    break;

                case 'registration':
                    switch (action) {
                        case 'add':
                            var ret = checkEmpty(formName, 'firstname', 'de voornaam') && 
                                   checkEmpty(formName, 'lastname', 'de achternaam') && 
                                   checkEmail(formName, 'email', 'het emailadres');
                                   
                            if (ret && document.forms[formName].elements['locatie'][1].checked) {
                                ret = checkEmpty(formName, 'street', 'de straat') && 
                                      checkEmpty(formName, 'number', 'het huisnummer') && 
                                      checkEmpty(formName, 'zipcode', 'de postcode');
                            }
                            return  ret && checkCheckedCheckbox(formName, 'type', 'type');
                            break;
                    }
                    break;
            }
            break;
    case 'house':
      if (action == 'add') {
        return (checkEmpty('name', 'de naam') && checkEmpty('address', 'het adres') && checkEmpty('number', 'het huisnummer') && checkEmpty('zipcode', 'de postcode') && checkEmpty('town', 'de woonplaats') && checkEmpty('telephone', 'het telefoonnummer'));
      }
      else
        return false;
      break;
  }
  return false;
}

function windowOpen(name, url, height, width) {
  var l = (screen.width) ? (screen.width - width) / 2 : 0;
  var t = (screen.height) ? (screen.height - height) / 2 : 0;
  var opts = 'width=' + width + ',height=' + height + ',top=' + t + ',left=' + l + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes';

  var win = window.open(url,name, opts);
  win.focus();
}

function showStatus(name){
  window.status=name;
  return true;
}

function swapImage(item,image) {
  document.images[item].src = image;
}

function getElementPos(el) {
  var x = 0, y = 0, temp;
  if (el.offsetParent) {
    temp = el;
    while (temp.offsetParent) { //Looping parent elements to get the offset of them as well
      temp = temp.offsetParent; 
      x += temp.offsetLeft;
      y += temp.offsetTop;
    }
  }
  x += el.offsetLeft;
  y += el.offsetTop;
  //Returning the x and y as an array
  return [x,y];
}

function setBannerDivs() {
  var coll = document.getElementsByTagName('EMBED');
  var pos;

  for (var i = 0; i < coll.length; i++) {
    if (coll[i].className == 'banner') {
      pos = getElementPos(coll[i]);
      coll[i].parentNode.previousSibling.style.left = pos[0] + 'px';
      coll[i].parentNode.previousSibling.style.top = pos[1] + 'px';
    }
  }
}

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,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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_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&&i<d.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 showMoviePopup() {
  var width = 315, height = 235;
  var l = (screen.width) ? (screen.width - width) / 2 : 0;
  var t = (screen.height) ? (screen.height - height) / 2 : 0;
  var opts = 'width=' + width + ',height=' + height + ',top=' + t + ',left=' + l + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no';
  var url = location.href + '&movie_popup=1';  
  
  var win = window.open(url, name, opts);
  win.focus();
}

function getWindowInnerSize() {
  var bWidth, bHeight;
  
  if (typeof window.innerWidth == 'number') {
    bWidth = window.innerWidth;
    bHeight = window.innerHeight;
  }
  else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
    bWidth = document.documentElement.clientWidth;
    bHeight = document.documentElement.clientHeight;
  }
  else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
    bWidth = document.body.clientWidth;
    bHeight = document.body.clientHeight;
  }
  
  return [bWidth, bHeight];
}

function showPageMediaPopup(pagID, type) {
  var width = 320, height = (type == 'sound' ? 72 : 327); 
  var l = (screen.width) ? (screen.width - width) / 2 : 0;
  var t = (screen.height) ? (screen.height - height) / 2 : 0;
  var opts = 'width=' + width + ',height=' + height + ',top=' + t + ',left=' + l + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no';
  var url = 'load.php?page=' + pagID + '&module_page=1&page_media_popup=' + type;  
  var name = "pagemedia";

  var win = window.open(url, name, opts);
  win.focus();
}

function resizeWindowInner(width, height) {
  var iWidth = document.body.clientWidth;
  var iHeight = document.body.clientHeight;
  var rWidth = width - iWidth;
  var rHeight = height - iHeight;

  window.resizeBy(rWidth, rHeight);
}

function getElementsByStyleClass (className) {
  var all = document.getElementsByTagName('div');
  var elements = new Array();
  for (var e = 0; e < all.length; e++)
    if (all[e].className == className)
      elements[elements.length] = all[e];
  return elements;
}

function showFormTab(name) {
   
  var elements = getElementsByStyleClass("tab_active");
  for (var i = 0; i < elements.length; i++){
     elements[i].style.display = 'none';
     elements[i].className= 'tab';
     document.getElementById(elements[i].id+'Link').className = '';
  }

  if (document.getElementById(name) != null) {
    toggleDisplay(name, true);
    document.getElementById(name).className= 'tab_active';
    document.getElementById(name + 'Link').className = 'active';
  }
}

function clickSurveySingleSelect(el) {
  var elmnts = document.getElementsByTagName('INPUT');

  for (var i = 0; i < elmnts.length; i++) {
    if (typeof elmnts[i].name != 'undefined' && elmnts[i].name.substr(0, 13) == 'answer_remark') {
      toggleDisplay(elmnts[i].id, false);
    }
  }

  toggleDisplay('txtAns' + el.value, true);
}

function checkSurveySingleMultiSelect(multi) {
  var fieldName = 'answer';
  var ansID = '';

  if (multi)
    fieldName = fieldName + "[]";

  var chkd = false;
  for (var i = 0; i < document.form_cms.elements.length; i++) {
    var obj = document.form_cms.elements[i];
    if (obj.name == fieldName && obj.checked) {
      chkd = true;
      ansID = obj.value;
      break;
    }
  }

  if (chkd) {
    if (typeof document.forms['form_cms'].elements['answer_remark[' + ansID + ']'] != 'undefined') {
      return checkEmpty('answer_remark[' + ansID + ']', 'de waarde');
    }
    else {
      return true;
    }
  }
  else {
    alert('Selecteer een optie!');
    return false;
  }
}

function checkSurveyScore() {
  var ansIDs = new Array(), j;
  var els = document.forms['form_cms'].elements;
  var ansID, found, ret = true;

  for (var i = 0; i < els.length; i++) {
    if (typeof els[i].name != 'undefined' && els[i].name.substr(0, 13) == 'answer_remark') {
      ansID = els[i].name.substr(14, els[i].name.length - 15);
      
      found = false;
      for (j = 0; j < ansIDs.length; j++) {
        if (ansIDs[j][0] == ansID) {
          found = true;
          break;
        }
      }

      if (!found) {
        ansIDs[j] = new Array(ansID, els[i].type);
      }
    }
  }

  for (var i = 0; i < ansIDs.length; i++) {
    if (ansIDs[i][1] == 'text') {
      ret = (ret && checkEmpty('answer_remark[' + ansIDs[i][0] + ']', 'de waarde'));
    } 
    else {
      ret = (ret && checkRadio('answer_remark[' + ansIDs[i][0] + ']'));
    }
  }

  return ret;
}

function getRadioValue(form, element) {
  var elmts = document.forms[form].elements;

  for (var i = 0; i < elmts.length; i++)
    if (elmts[i].name == element && elmts[i].checked)
      return elmts[i].value;

  return null;
}

function createRequestObject() {
  var req_obj = null;

  if (window.XMLHttpRequest) {
    req_obj = new XMLHttpRequest();
  }
  else if (window.ActiveXObject) {
    var types = ['Microsoft.XMLHTTP', 'MSXML2.XMLHTTP.5.0', 'MSXML2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];

    for (var i = 0; i < types.length && req_obj == null; i++) {
      try {
        req_obj = new ActiveXObject(types[i]);
      }
      catch(e) {
        req_obj = null;
      }
    }
  }

  return req_obj;
}

function formGetAddress(zipcode, housenumber, street_field, city_field) {
  if (zipcode != "" && housenumber != "") {
    var req = createRequestObject();
    if (req) {
      req.onreadystatechange = function() {
        if (req.readyState == 4 && (req.status == 200 || req.status == 304)) {
          // Create an object from the returned literal code:
          var objData = {};
          try {
            eval("objData = " + req.responseText);

            street_field.value = objData['street'];
            city_field.value = objData['city'];
          }
          catch (ex) { }
        }
      };

      req.open('GET', "module.php?module=form&template=get_address&zipcode="+escape(zipcode)+"&housenumber="+escape(housenumber));
      req.send(null);
    }
  }
}

function copyContent(content, dstField) {
  var dstField = document.getElementById(dstField);
  if(dstField){
    dstField.innerHTML = content;

    if (content != "")
      dstField.parentNode.style.display = '';
    else
      dstField.parentNode.style.display = 'none';
  }
}

function createCookie(name, value, days) {
	if (days)	{
		var date = new Date();
		date.setTime(date.getTime() + (days*24*60*60*1000));
		var expires = "; expires=" + date.toGMTString();
	}
	else var expires = "";
	document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for (var i = 0; i < ca.length; i++)	{
		var c = ca[i];
		while (c.charAt(0) == ' ') c = c.substring(1, c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name, "", -1);
}

function setActiveStylesheet(title) {
  var sheets = document.getElementsByTagName('LINK');

  for (var i = 0; i < sheets.length; i++) {
    if (sheets[i].getAttribute('rel').indexOf('alt') != -1) {
      sheets[i].disabled = true;
      if (sheets[i].getAttribute('title') == title) {
        sheets[i].disabled = false;
      }
    }
  }
}

function getActiveStylesheet() {
  var sheets = document.getElementsByTagName('LINK');

  for (var i = 0; i < sheets.length; i++) {
    if (sheets[i].getAttribute('rel').indexOf('alt') != -1 && sheets[i].disabled == false) {
      return sheets[i].getAttribute('title');
    }
  }

  return null;
}

function checkAltStylesheet() {
  if (document.getElementsByTagName) {
    var style = readCookie('PageStyle');

    if (style != null) {
      setActiveStylesheet(style);
    }
    else {
      setActiveStylesheet('');
    }
  }
}

function toggleAltStylesheet(title) {
  if (getActiveStylesheet() != null) {
    setActiveStylesheet('');
    eraseCookie('PageStyle');
  }
  else {
    setActiveStylesheet(title);
    createCookie('PageStyle', title, 365);
  }
}

function setNextStep(NextStep){
  if (NextStep=="Y" || NextStep=="N"){
    var target = document.getElementById("nextstep");
    if (NextStep=="Y") target.innerHTML = "Volgende";
    if (NextStep=="N") target.innerHTML = "Verzenden";
    
    first = document.getElementById("stepheaderfirst").value;
    maxstep = Number(document.getElementById("stepheadermax").value);
    last = document.getElementById("stepheaderlast").value;
    if (NextStep=="Y") maxstep = maxstep + 1;
    
    var target = document.getElementById("stepheader");
    target.innerHTML = first+maxstep+last;
   }
}


function getMouseOverSrc(str) {
  return str.replace(/_off/, '_on');
}

function getMouseOutSrc(str) {
  return str.replace(/_on/, '_off');
}

function submitUploadStep(formname, value) {
  {
    var oHid = document.createElement('input');
    oHid.setAttribute("type","hidden");
    oHid.setAttribute("name","nospam");
    oHid.setAttribute("value",value);
    document.forms[formname].appendChild(oHid);
    document.forms[formname].submit();
  }
}

function checkSearchForm(form)
{
	if(document.getElementById('txtSearch').value == 'search...'){
		alert('Enter a search term!');
		return false;
	}
}

function toggleLanguageSelect()
{
	if(document.getElementById('languages').style.display == 'none')
		document.getElementById('languages').style.display = '';
	else
		document.getElementById('languages').style.display = 'none';
}

function selectLanguage(sitId, baseUrl)
{
	document.getElementById('languages').style.display = 'none';
	window.location = baseUrl + 'index.php?site='+sitId;
}

var slideIndex=0;
var slideLabel;
var slideCntfld;
var slideTimer;
var slideWait=3000;

function startSlideShow(startButton, stopButton, label, cntfld)
{
  document.getElementById(startButton).style.display = 'none';
  document.getElementById(stopButton).style.display = 'inline';
  
  slideLabel = label;
  slideCntfld = cntfld;
  
  slideTimeOut();
}

function slideTimeOut()
{
  var slideCount = document.getElementById(slideCntfld).value;
  
  slideId = slideLabel + slideIndex;
  document.getElementById(slideId).style.display = 'none';
  
  slideIndex=slideIndex+1;
  if (slideIndex>=slideCount) slideIndex = 0; 
  slideId = slideLabel + slideIndex;
  document.getElementById(slideId).style.display = 'inline';
  
  slideTimer=setTimeout("slideTimeOut()",slideWait);
}

function stopSlideShow(startButton, stopButton, label)
{
  clearTimeout(slideTimer);
  
  slideId = label + slideIndex;
  document.getElementById(slideId).style.display = 'none';

  slideIndex = 0;
  slideId = label + slideIndex;
  document.getElementById(slideId).style.display = 'inline';
  
  document.getElementById(stopButton).style.display = 'none';
  document.getElementById(startButton).style.display = 'inline';
}

function checkboxlimit(checkbox, limit){
    var checkedcount = 0;
    var checkgroup = document.getElementsByName(checkbox.name);


    for (var i=0; i < checkgroup.length; i++)
       checkedcount+=(checkgroup[i].checked)? 1 : 0;

    if (checkedcount > limit){
        alert("U kunt maar maximaal "+limit+" velden selecteren");
        checkbox.checked=false;
    }
    
}

function projectGetPic(pic, what, isAbs) {
  var newNr;
  if (isAbs)
    newNr = what;
  else
    newNr = parseInt(pic.current, 10) + what;

  if (newNr >= 0 && !(pic.isAbsLast && what == 1)) {
    if ((pic.isFirst && what == -1) || (pic.isLast && what == 1)) {
      var newUrl = '';
      
      if (pic.isLast) {
        newUrl = pic.nextPageUrl;
      }
      else {
        newUrl = pic.prevPageUrl;
      }
      
      location.href = newUrl;
    }
    else {
      $(pic.type + 'Loading').src = 'images/loading.gif';
      
      if(pic.module == 'house'){
      	var url = 'module.php?module=house&template=get_picturegroup&id=' + pic.itemId + '&type=' + pic.type + '&item_nr=' + newNr;
      }
      else{
      	var url = 'module.php?module=project&template=get_picturegroup&id=' + pic.itemId + '&type=' + pic.type + '&item_nr=' + newNr;
      }
 
      new Ajax.Request(url, {
        method: 'get',
        onSuccess : function (transport) {
          var data = eval("(" + transport.responseText + ")");
          
          pic.current = newNr;
          pic.isLast = data.isLast;
          pic.isFirst = data.isFirst;
          pic.isAbsLast = data.isAbsLast;

          $(pic.type + 'Img').src = data.image;

          if (pic.current == 0)
            $(pic.type + 'PrevLink').style.display = "none";
          else
            $(pic.type + 'PrevLink').style.display = "inline";
          
          if (pic.isAbsLast)
            $(pic.type + 'NextLink').style.display = "none";
          else
            $(pic.type + 'NextLink').style.display = "inline";
        }
      });
    }
  }

  return false;
}

function filterYouTubeCode(field) {
	var input = field.value;
	var reg = /[\?&#!]v=(.{11})/;
	var match = reg.exec(input);

    if(match != null)
        field.value = match[1];     
}

function checkDatesfields(from_field, to_field, type_field, form_name) {
  var dateTimeReg = /^([0-9]+)-([0-9]+)-([0-9]+) ([0-9]+):([0-9]+):([0-9]+)$/;
  var dateReg = /^([0-9]+)-([0-9]+)-([0-9]+)$/;
  var dateFields, res, fromDate, toDate, dateTime;
  var fromDays, fromMonth, fromYear, fromHour, fromMin, fromSec;
  var toDays, toMonth, toYear, toHour, toMin, toSec;
  var calDates = new Array(), j;

  dateFields = getDateFields(from_field, to_field, type_field, form_name);

  for (var i = 0; i < dateFields.length; i++) {
    dateTime = (dateFields[i][2].options[dateFields[i][2].selectedIndex].value == 'datetime');

    if (dateTime && (res = dateTimeReg.exec(dateFields[i][0].value))) {
      fromDays = parseInt(res[1], 10);
      fromMonth = parseInt(res[2], 10) - 1;
      fromYear = parseInt(res[3], 10);
      fromHour = parseInt(res[4], 10);
      fromMin = parseInt(res[5], 10);
      fromSec = parseInt(res[6], 10);
    }
    else if (!dateTime && (res = dateReg.exec(dateFields[i][0].value))) {
      fromDays = parseInt(res[1], 10);
      fromMonth = parseInt(res[2], 10) - 1;
      fromYear = parseInt(res[3], 10);
      fromHour = 0;
      fromMin = 0;
      fromSec = 0;
    }
    else {
      alert('The from date has an incorrect format!');
      dateFields[i][0].focus();
      return false;
    }

    if (dateTime && (res = dateTimeReg.exec(dateFields[i][1].value))) {
      toDays = parseInt(res[1], 10);
      toMonth = parseInt(res[2], 10) - 1;
      toYear = parseInt(res[3], 10);
      toHour = parseInt(res[4], 10);
      toMin = parseInt(res[5], 10);
      toSec = parseInt(res[6], 10);
    }
    else if (!dateTime && (res = dateReg.exec(dateFields[i][1].value))) {
      toDays = parseInt(res[1], 10);
      toMonth = parseInt(res[2], 10) - 1;
      toYear = parseInt(res[3], 10);
      toHour = 0;
      toMin = 0;
      toSec = 0;
    }
    else {
      alert('The to date has an incorrect format!');
      dateFields[i][1].focus();
      return false;
    }

    fromDate = new Date(fromYear, fromMonth, fromDays, fromHour, fromMin, fromSec);
    toDate = new Date(toYear, toMonth, toDays, toHour, toMin, toSec);
    calDates[i] = new Array(fromDate, toDate);

    if (fromDate.getDate() != fromDays || fromDate.getMonth() != fromMonth || fromDate.getFullYear() != fromYear || fromDate.getHours() != fromHour || fromDate.getMinutes() != fromMin || fromDate.getSeconds() != fromSec) {
      alert('The from date is invalid!');
      dateFields[i][0].focus();
      return false;
    }
    else if (toDate.getDate() != toDays || toDate.getMonth() != toMonth || toDate.getFullYear() != toYear || toDate.getHours() != toHour || toDate.getMinutes() != toMin || toDate.getSeconds() != toSec) {
      alert('The to date is invalid!');
      dateFields[i][1].focus();
      return false;
    }
    else if (dateTime && fromDate >= toDate) {
      alert('The from date may not be the same as or later than the to date!');
      dateFields[i][0].focus();
      return false;
    }
    else if (!dateTime && fromDate > toDate) {
      alert('The from date may not be later than the to date!');
      dateFields[i][0].focus();
      return false;
    }
    else {
      for (j = 0; j < i; j++) {
        if (calDates[j][0].getTime() == fromDate.getTime() && calDates[j][1].getTime() == toDate.getTime()) {
          alert('A from/to date may not occur twice!');
          dateFields[i][0].focus();
          return false;
        }
      }
    }
  }

  return true;
}

function getDateFields(from_field, to_field, type_field, form_name) {
  var field, dateFields = new Array(), nr, pos, j = 0, k1, k2, found1, found2;

  for (var i = 0; i < document.forms[form_name].elements.length; i++) {
    field = document.forms[form_name].elements[i];

    if (typeof field.name != 'undefined' && field.name.substr(0, from_field.length) == from_field) {
      pos = field.name.indexOf('[');
      if (pos != -1) {
        nr = field.name.substr(pos + 1, field.name.length - pos - 2);

        if (!isNaN(nr)) {
          found1 = false;
          for (k1 = 0; k1 < document.forms[form_name].elements.length && !found1; k1++) {
            if (typeof document.forms[form_name].elements[k1].name != 'undefined' && document.forms[form_name].elements[k1].name == to_field + '[' + nr + ']')
              found1 = true;
          }

          found2 = false;
          for (k2 = 0; k2 < document.forms[form_name].elements.length && !found2; k2++) {
            if (typeof document.forms[form_name].elements[k2].name != 'undefined' && document.forms[form_name].elements[k2].name == type_field + '[' + nr + ']')
              found2 = true;
          }

          if (found1 && found2) {
            dateFields[j] = new Array(field, document.forms[form_name].elements[k1 - 1], document.forms[form_name].elements[k2 - 1]);
            j++;
          }
        }
      }
    }
  }

  return dateFields;
}