function chkForm(ref)
{
	if(ref.femail.value == "" || ref.femail.value == "deine.adresse@domain.de" || ref.femail.value.indexOf('@') <= -1)
	{
		alert('bitte email-adresse in das absenderfeld eintragen!');
		ref.femail.blur();	
		return false;
	}
	
	ref.submit();
}