function openWindow(url, w, h, name){
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	var settings  ='height='+h+',';
	settings +='width='+w+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='scrollbars=no,';
	settings +='resizable=no,';
	settings +='menubar=no,';
	settings +='location=no,';
	settings +='status=no';
	popupWin = window.open(url, name, settings);
	}

function capitalizeMe(str){
	var val = str;
	newVal = '';
	val = val.split(' ');
	for(var c=0; c < val.length; c++) {
		newVal += val[c].substring(0,1).toUpperCase() + val[c].substring(1,val[c].length).toLowerCase() + ' ';
	}
	return newVal.substring(0,newVal.length-1);
	}

function isEmailAdres(string){
  var patroon = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
  return patroon.test(string);
	}

function isNum(argvalue){
	argvalue = argvalue.toString();
	if (!argvalue.length) return false;
	for (var n=0; n<argvalue.length; n++)
		if (argvalue.substring(n, n+1) < "0" || argvalue.substring(n, n+1) > "9")
			return false;
	return true;
	}

function isTelefoon(string){
	var patroon = /^0[1-9][0-9]{1,2}(-{0,1})[1-9][0-9]{5,6}$/;
	return patroon.test(string);
}

function isTel(string){
	
	if(string.length!=10) return false;
	return isTelefoon(string);
}

function replaceAll( str, from, to ){
    var idx = str.indexOf( from );
    while ( idx > -1 ) {
        str = str.replace( from, to );
        idx = str.indexOf( from );
   		}
    return str;
	}

function checkForm()
{
	frm = document.frmContact;
	errorstr = "De volgende velden zijn niet goed ingevuld:";
	err = errorstr;
	strbool = true;
	frm.naam.value = replaceAll(frm.naam.value,","," ");
	frm.plaats.value = capitalizeMe(frm.plaats.value);
	var bSelected = false;

	if(!frm.aanhef[0].checked&&!frm.aanhef[1].checked){
		errorstr = errorstr += "\n - Aanhef";
	}

	if(frm.naam.value.length==0){
		errorstr += "\n - Naam";
	}

	if(frm.adres.value.length==0){
		errorstr += "\n - Adres";
		strbool = false;
	}

	if(frm.postcode.value.length==0){
		errorstr += "\n - Postcode";
		strbool = false;
	}

	if(frm.plaats.value.length==0){
		errorstr += "\n - Plaats";
	}
	else
	{
		if(frm.plaats.value.indexOf("@")!=-1){
			errorstr += "\n - Plaats";
		}
	}

	frm.telefoon.value = replaceAll(frm.telefoon.value,"-","");
	if(!isTel(frm.telefoon.value)){
		errorstr += "\n - Telefoon";
	}

	if(!isEmailAdres(frm.email.value))
	{
		errorstr += "\n - Emailadres";
	}

	if(errorstr == err)
	{
		frm.submit();
	}
	else
	{
		alert(errorstr);
	}
}
	
	
function SubmitForm()
	{
	var sError = "";
	var bReturn = true;

	if (document.frmBestellen.aantal.value == ""){
		sError = sError + "- Aantal\n"; bReturn = false;
	}
	else {
		if (!isNum(document.frmBestellen.aantal.value)) {
			sError = sError + "- Aantal\n"; bReturn = false;
		}
	}
	if (document.frmBestellen.naam.value == ""){sError = sError + "- Naam\n"; bReturn = false;}
	if (document.frmBestellen.adres.value == ""){sError = sError + "- Adres\n"; bReturn = false;}
	if (document.frmBestellen.postcode.value == ""){sError = sError + "- Postcode\n"; bReturn = false;}	
	if (document.frmBestellen.plaats.value == ""){sError = sError + "- Plaats\n"; bReturn = false;}
	if(!isEmailAdres(document.frmBestellen.email.value)){sError = sError + "- Emailadres\n"; bReturn = false;}
	
	document.frmBestellen.telefoon.value = replaceAll(document.frmBestellen.telefoon.value,"-","");
	if (!isTel(document.frmBestellen.telefoon.value)){
		sError = sError + "- Telefoonnummer\n"; 
		bReturn = false;
	}
	
	if (sError == "")
		{
		document.frmBestellen.submit();
		}
	else
		{
		alert ("Gelieve de volgende velden in te vullen:\n\n" + sError);
		bReturn = false;
		}
	return bReturn;
}