<!--

function checkForm()
{

var veldmelding = new Array();
//vertalen
veldmelding[0] = "e-mail address";
veldmelding[1] = "password";
var invullen="You did forget to fill in the following fields:";
//einde vetalen

var checkvelden = new Array();
checkvelden[0] = "emailadres";
checkvelden[1] = "wachtwoord";
var melding = '';

for (i=0; i<checkvelden.length; i++)
	{
	if (document.form1.elements[checkvelden[i]].value == '')
		{
		if (melding=='')
			{
			melding = veldmelding[i];
			}
		else
			{
			melding += (', ' + veldmelding[i]);
			}
		}
	}
if (melding=='')
	{
	return true;
	}
else
	{
	melding = invullen + '\n' + melding;
	alert (melding);		
	return false;	
	}

}
	 
function setfocus() {
	document.form1.emailadres.focus()
}

function checkwwlengte()
{

//vertalen
var wwalert="password must be at least 6 characters!";
//einde vertalen

if (document.form1.wachtwoord.value.length < 1)
	{
	return true;
	}
if (document.form1.wachtwoord.value.length < 6)
   	{
	   alert (wwalert);
	   document.form1.wachtwoord.focus();
	   return false;
	}
	else
	{
    return true;
	}
}
	 

function na_email_validation(fname, type_name, str) 
{
  var email_validation = true
  var temp = document.forms[fname].elements[type_name]
  var at = temp.value.indexOf('@')
  var prd = temp.value.lastIndexOf('.')
  var space = temp.value.indexOf(' ')
  var length = temp.value.length - 1   

  if (temp.value == '') {
	return true
  } 

  if ((at < 1) || (prd <= at+1) ||  (prd == length ) ||  (space  != -1)) {  
    email_validation = false
    alert(str)
    temp.focus()
  }
  return email_validation
}

function na_change_location(url) 
{
  location=url;
}

function checkzoek() {
	if ((document.getElementById("zoekpos").value == "" || document.getElementById("zoekpos").value == " " || document.getElementById("zoekpos").value == "rideshare from") && (document.getElementById("zoekpos2").value == "" || document.getElementById("zoekpos2").value == " " || document.getElementById("zoekpos2").value == "rideshare to")) {
		melding = "fill in departure and/or arrival city!";
		alert (melding);		
		return false;	
	}
	if (document.getElementById("zoekpos").value != "" && document.getElementById("zoekpos").value != " " && document.getElementById("zoekpos").value != "rideshare from" && document.getElementById("zoekpos2").value != "" && document.getElementById("zoekpos2").value != " " && document.getElementById("zoekpos2").value != "rideshare to") {
		document.getElementById("zoekkey").value = "city (GPS)";
	}
	else {
		if (document.getElementById("zoekpos").value != "" && document.getElementById("zoekpos").value != " " && document.getElementById("zoekpos").value != "rideshare from") {
			document.getElementById("zoekkey").value = "city (GPS)";
			document.getElementById("zoekpos2").value = "";
		}
		else {
			document.getElementById("zoekkey").value = "city (GPS)";
			document.getElementById("zoekpos").value = "";
		}
	}
	return true;
}


function zichtbaar(teksta,tekstb) {
	document.getElementById('divtekst2a').style.color = 'blue';
	document.getElementById('divtekst3a').style.color = 'blue';
	document.getElementById('divtekst4a').style.color = 'blue';
	document.getElementById('divtekst5a').style.color = 'blue';
	document.getElementById('divtekst7a').style.color = 'blue';
	document.getElementById('divtekst2b').style.visibility = 'hidden';
	document.getElementById('divtekst2b').style.display = 'none'; 
	document.getElementById('divtekst3b').style.visibility = 'hidden';
	document.getElementById('divtekst3b').style.display = 'none'; 
	document.getElementById('divtekst5b').style.visibility = 'hidden';
	document.getElementById('divtekst5b').style.display = 'none';
	document.getElementById('divtekst4b').style.visibility = 'hidden';
	document.getElementById('divtekst4b').style.display = 'none';
	document.getElementById('divtekst7b').style.visibility = 'hidden';
	document.getElementById('divtekst7b').style.display = 'none'; 
	document.getElementById(tekstb).style.visibility = 'visible';
	document.getElementById(teksta).style.color = 'red';
	document.getElementById(tekstb).style.display = '';
}

function onzichtbaar() {
	document.getElementById('divtekst2a').style.color = 'blue';
	document.getElementById('divtekst3a').style.color = 'blue';
	document.getElementById('divtekst4a').style.color = 'blue';
	document.getElementById('divtekst5a').style.color = 'blue';
	document.getElementById('divtekst7a').style.color = 'blue';
	document.getElementById('divtekst2b').style.visibility = 'hidden';
	document.getElementById('divtekst2b').style.display = 'none'; 
	document.getElementById('divtekst3b').style.visibility = 'hidden';
	document.getElementById('divtekst3b').style.display = 'none'; 
	document.getElementById('divtekst5b').style.visibility = 'hidden';
	document.getElementById('divtekst5b').style.display = 'none';
	document.getElementById('divtekst4b').style.visibility = 'hidden';
	document.getElementById('divtekst4b').style.display = 'none';
	document.getElementById('divtekst7b').style.visibility = 'hidden';
	document.getElementById('divtekst7b').style.display = 'none';  
}

function clearText(thefield){
	if (thefield.defaultValue==thefield.value)
		thefield.value = ""
} 
// -->