function checkfield(element)
{
	if (element.value == "")
	return 1;
	else
	return 0;
}

function checkradio(element)
{
	if (element.checked)
	return 1
	else
	return 0
	
}

function checkarea(element)
{
	if (element.innerHTML == "")
	{
		return 1
	}
	else
	return 0

}

function checkselect(element)
{
	if (element.selectedIndex == 0)
	return 1
	else
	return 0
}

//mail filtering! gevonden op: http://www.quirksmode.org/js/mailcheck.html
function checkmail(element)
{
	var email = element.value;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	check = email.match(filter);
	if (check == null)
	{
		return 1
	}
	else
	{
		return 0
	}
}

function send_form()
{
	result = checkfield(document.solliciteren.s_naam)
	if (result != 0) {document.getElementById("msg").innerHTML  = "Vul a.u.b uw naam in"; return false;}	

	result = checkfield(document.solliciteren.s_achternaam)
	if (result != 0) {document.getElementById("msg").innerHTML  = "Vul a.u.b uw achternaam in"; return false;}	

	result = checkfield(document.solliciteren.s_adres)
	if (result != 0) {document.getElementById("msg").innerHTML  = "Vul a.u.b uw adres in"; return false;}	

	result = checkfield(document.solliciteren.s_tel)
	if (result != 0) {document.getElementById("msg").innerHTML  = "Vul a.u.b uw telefoonnummer in"; return false;}

	result = checkmail(document.solliciteren.s_email)
	if (result != 0) {document.getElementById("msg").innerHTML  = "Vul a.u.b uw e-mail adres in"; return false;}	

	if (result == 0)
	{
		document.solliciteren.submit();
	}
}