function openDetails(id) {
 w = window.open('index.php?id=418&vid='+id,'veranstaltungsdetails','menubar=no,scrollbars=yes,position=center,status=no,width=500,height=500');
 w.focus();
}

function openHelp(s) {
 w = window.open('fileadmin/wochederchemie/veranstaltung_help.html#'+s,'login','menubar=no,scrollbars=yes,position=center,status=no,width=800,height=600');
 w.focus();
}

function openVorschau(s) {
 w = window.open('index.php?id=888&html='+escape(s),'login','menubar=no,scrollbars=yes,position=center,status=no,width=400,height=300');
 w.focus();
}