var fields 	= Array("naam","postcode","woonplaats","land","telefoon","aantal_volwassenen");
function validate()
{
	var valid	= 0;
		
		for(var i=0; i<(fields.length); i++)
		{
			if(fields[i]!="")
			{
				var field = eval("document.frm."+fields[i]);
				if(field.value == "")
				{
					eval("document.getElementById('lbl"+fields[i]+"')").style.color="#b60000";
					field.style.borderColor="#b60000";
					
					valid++;
				}
				else
				{
					eval("document.getElementById('lbl"+fields[i]+"')").style.color="#464938";
					field.style.borderColor="#b60000";
					field.style.borderColor="#464938";
				}
			}
		}
		
		var email = document.frm.e_mail;
		AtPos = email.value.indexOf("@");
		StopPos = email.value.lastIndexOf(".");
				
		if ( StopPos == -1 || StopPos < AtPos)
		{
			document.getElementById('lblemail').style.color="#b60000";
			email.style.borderColor="#b60000";
			valid++;
			if(valid==1)
			{
				alert("U dient een correct e-mailadres in te vullen");
			}
		}
		else
		{
			document.getElementById('lblemail').style.color="#464938";
			email.style.borderColor="#464938";
		}
		
		if(valid==0)
		{
			document.frm.method = "post";
			document.frm.action = "/custom/reserveren.php";
			document.frm.submit();
		}
}