function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

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) { //v4.0
  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 && document.getElementById) x=document.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 requestFuseaction(fuseaction){
	document.form1.fuseaction.value=fuseaction;
	document.form1.submit();
}

function openNewWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function confirmSubmit()
	{ var agree=confirm("Zeker weten?");
			if (agree)
				return true ;
			else
				return false ;
	}
	
function formSubmit(filename){
	document.form1.action = filename;
	document.form1.submit();	
	return true;
}

function formSubmit2(filename){
	
	document.form2.action = filename;
	document.form2.submit();	
	return true;
}

var windowName="nieuwland";
function selectPopUpWindow(filename) {
	windowName = window.open(filename, "windowName", "resizable, scrollbars=yes, top=20, left=20, width=500, height=500");
	windowName.focus()
}
	
function closePopUpWindow(){
	if (windowName && windowName.open && !windowName.closed) windowName.close();
	}

function checkFormfields(){
	if(document.form1.firstname.value==""){alert("Vul s.v.p. Voornaam of Voorletters in!");document.form1.firstname.focus();return false;}
	if(document.form1.lastname.value==""){alert("Vul s.v.p. Achternaam in!");document.form1.lastname.focus();return false;}
	if(document.form1.address.value==""){alert("Vul s.v.p. Straatnaam in! (-> geen Postbus!)");document.form1.address.focus();return false;}
	if(document.form1.addressNo.value==""){alert("Vul s.v.p. Huisnummer in!");document.form1.addressNo.focus();return false;}
	if(document.form1.zip.value==""){alert("Vul s.v.p. Postcode in!");document.form1.zip.focus();return false;}
	if(document.form1.city.value==""){alert("Vul s.v.p. Woonplaats in!");document.form1.city.focus();return false;}
	if(document.form1.phone.value==""){alert("Vul s.v.p. Telefoonnummer in!");document.form1.phone.focus();return false;}
	if(document.form1.email.value==""){alert("Vul s.v.p. e-mailadres in!");document.form1.email.focus();return false;}
	else {return true;}
}

function checkShipTofields(){
	if(document.form1.firstname.value==""){alert("Vul s.v.p. Voornaam of Voorletters in!");document.form1.firstname.focus();return false;}
	if(document.form1.lastname.value==""){alert("Vul s.v.p. Achternaam in!");document.form1.lastname.focus();return false;}
	if(document.form1.address.value==""){alert("Vul s.v.p. Straatnaam in! (-> geen Postbus!)");document.form1.address.focus();return false;}
	if(document.form1.addressNo.value==""){alert("Vul s.v.p. Huisnummer in!");document.form1.addressNo.focus();return false;}
	if(document.form1.zip.value==""){alert("Vul s.v.p. Postcode in!");document.form1.zip.focus();return false;}
	else {return true;}
}

function checkDiscountFields(){
	var missing_field=" niet ingevuld. U kunt pas verder nadat u dit heeft ingevuld.";
	if(document.form1.dd.value==""){alert("Vul s.v.p. Geboortedag in!");document.form1.dd.focus();return false;}
	if(document.form1.mm.value==""){alert("Vul s.v.p. Geboortemaand in!");document.form1.mm.focus();return false;}
	if(document.form1.jjjj.value==""){alert("Vul s.v.p. Geboortejaar in!");document.form1.jjjj.focus();return false;}
	if((document.form1.ig_number.value <= 9999) || (document.form1.ig_number.value >= 300000)){alert("INTER-GOLF-relatienummer is niet correct!");document.form1.ig_number.focus();return false;}
	else {return true;}
}


function checkPasswords(){
	var missing_field=" niet ingevuld. U kunt pas verder nadat u dit heeft ingevuld.";
	if(document.form1.password.value==""){alert("Uw code is"+missing_field);document.form1.password.focus();return false;}
	if(document.form1.verifyPassword.value==""){alert("Uw code"+missing_field);document.form1.verifyPassword.focus();return false;}
	else {return true;}
}

function checkMailForm(){
	if(document.form1.mailToName.value==""){alert("Vul s.v.p. een naam in");document.form1.mailToName.focus();return false;}
	if(document.form1.mailToEmail.value==""){alert("Vul s.v.p. een email-adres in");document.form1.mailToEmail.focus();return false;}
	if(document.form1.fromName.value==""){alert("Vul s.v.p. uw naam in");document.form1.fromName.focus();return false;}
	if(document.form1.fromEmail.value==""){alert("Vul s.v.p. een email-adres in");document.fromEmail.mailToName.focus();return false;}
	else {return true;}
}

function checkContactForm(){
	if(document.form1.name.value==""){alert("Vul s.v.p. uw naam in");document.form1.name.focus();return false;}
	if(document.form1.phone.value==""){alert("Vul s.v.p. uw telefoonnummer in");document.form1.phone.focus();return false;}
	if(document.form1.email.value==""){alert("Vul s.v.p. uw email-adres in");document.form1.email.focus();return false;}
	if(document.form1.folderaanvraag.checked){
		if(document.form1.address.value==""){alert("Vul s.v.p. uw adres in");document.form1.address.focus();return false;}
		if(document.form1.zipcode.value==""){alert("Vul s.v.p. uw postcode in");document.form1.zipcode.focus();return false;}
		if(document.form1.city.value==""){alert("Vul s.v.p. uw woonplaats in");document.form1.city.focus();return false;}
	}
	return true;
}

function checkBtoBForm(){
	if(document.form1.name.value==""){alert("Vul s.v.p. uw naam in");document.form1.name.focus();return false;}
	if(document.form1.phone.value==""){alert("Vul s.v.p. uw telefoonnummer in");document.form1.phone.focus();return false;}
	if(document.form1.email.value==""){alert("Vul s.v.p. uw email-adres in");document.form1.email.focus();return false;}
	else {return true;}
}

function checkAanvraagInfoForm(){
	if(document.form1.name.value==""){alert("Vul s.v.p. uw naam in");document.form1.name.focus();return false;}
	if(document.form1.address.value==""){alert("Vul s.v.p. uw adres in");document.form1.address.focus();return false;}
	if(document.form1.zipcode.value==""){alert("Vul s.v.p. uw postcode in");document.form1.zipcode.focus();return false;}
	if(document.form1.city.value==""){alert("Vul s.v.p. uw woonplaats in");document.form1.city.focus();return false;}
	else {return true;}
}
function checkProductsForm(){
	if(document.form1.name.value==""){alert("Vul s.v.p. een naam in!");document.form1.firstname.focus();return false;}
	if(document.form1.productnr.value==""){alert("Vul s.v.p. Artikelnummer in!");document.form1.productnr.focus();return false;}
	if(document.form1.cat_id.value==""){alert("Vul s.v.p. Subcategorie in!");document.form1.cat_id.focus();return false;}
	if(document.form1.basePrice.value==""){alert("Vul s.v.p. Voor prijs in!");document.form1.basePrice.focus();return false;}
	else {return true;}
}
function checkIfNoMail(){
	if(document.form2.email.value==""){alert("Vul s.v.p. een email-adres in");document.form2.email.focus();return false;}
	else {return true;}
}

function isPhoneNumber(inField){ 
	var acceptable="0123456789 +-()";
	var ok=true;
	for(i=0;i<inField.length;i++){
		if(acceptable.indexOf(inField.charAt(i).toUpperCase())==-1){
			alert('Ongeldig teken. Gebruik enkel cijfers, eventueel gecombineerd met een +, een - of met ().');
			document.form1.phone.focus();
			return false; 
		} 
	}
	return true;
}

function emailCheck (emailStr) {
/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address. 
   These characters include ( ) < > @ , ; : \ " . [ ]    */
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
 

/* Finally, let's start trying to figure out if the supplied address is
   valid. */
 
/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
 alert("Email-adres lijkt niet correct (controleer het adres op een @ en .'en)");
 document.form1.email.focus();
 document.form1.email.select();
 return false;
}
var user=matchArray[1]
var domain=matchArray[2]
 
// See if "user" is valid 
if (user.match(userPat)==null) {
    // user is not valid
    alert("De username lijkt niet correct.");
		document.form1.email.focus();
 		document.form1.email.select();
    return false;
}
 
/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
   for (var i=1;i<=4;i++) {
     if (IPArray[i]>255) {
         alert("Het gebruikte IP-nummer lijkt niet correct!");
				 document.form1.email.focus();
				 document.form1.email.select();
    			return false;
					}
    }
    return true
}
 
// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
 alert("De gebruikte domeinnaam lijkt niet correct.");		
 document.form1.email.focus();
 document.form1.email.select();
 return false;
}
 
/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */
 
/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   alert("Het email-adres moet eindigen op een drie-letterig domein of op een landcode.");
	 document.form1.email.focus();
	 document.form1.email.select();
   return false;
}
 
// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="Er ontbreekt een hostname in het email-adres!"
   alert(errStr);
	 document.form1.email.focus();
	 document.form1.email.select();
   return false;
}
 
// If we've gotten this far, everything's valid!
return true;
}