function checkMsgForm()
{
  var errorMsg  = "De volgende velden zijn niet correct ingevuld:\n";
  var hasErrors = false;

  var name    = $j("#name").val();
  var message = $j("#message").val();
	var email   = $j("#email").val();

  if (message==null || message=="")
  {
    hasErrors = true;
    errorMsg += "\n- Bericht";
  }
  if (name==null || name=="")
  {
    hasErrors = true;
    errorMsg += "\n- Naam";
  }
  if (email==null || email=="" || !checkEmail(email))
  {
    hasErrors = true;
    errorMsg += "\n- E-mailadres";
  }

  if (hasErrors) alert(errorMsg);
  else  $j("#addMsgForm").submit();
}

function checkEmail(address)
{
  var filter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
  if (filter.test(address)) return true;
  else return false;
}