function MM_openBrWindow(theURL,winName,features) { //v2.0
	window.open(theURL,winName,features);
}

function open_petition(ustat) {
	MM_openBrWindow('system/petition.php?unique_user='+ustat, 'petition', 'width=700,height=500,scrollbars=yes,resizable=yes');
}

function check_form() {
	var msg="";
	if (document.getElementById('vorname').value.length<1 ||
		document.getElementById('nachname').value.length<1) {
		msg="Bitte füllen Sie alle Eingabefelder aus!";
	}
	if (!document.getElementById('email').value.match(/\b(^(\S+@).+\..{2,3}$)\b/i)) {
		msg+=(msg.length>0 ? "\n" : "");
		msg="Ihre E-Mail-Adresse scheint nicht richtig zu sein!";
	}
//	if (!document.getElementById('ja_wwf').checked) {
//		msg+=(msg.length>0 ? "\n" : "");
//		msg+="Die Checkbox muss angehakt sein!";
//	}
	if (msg.length>0) {
		alert(msg);
		return false;
	} else {
		return true;
	}
}