function ShowEvent(id){
//alert(id);
var id_link = id+'_link';
document.getElementById(id).style.display = '';
document.getElementById(id_link).style.display = 'none';
XMLHTTP.open("POST", "http://www.meinantenne1.de/events/_event_go/reg_events.php");
	//XMLHTTP.onreadystatechange = ausgabe;
	//var d = document.getElementById("region").value;
	//alert (document.getElementById("region").value);
	XMLHTTP.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	XMLHTTP.send("event="+id);

}

function HideEvent(id){
//alert(id);
var id_link = id+'_link';
document.getElementById(id).style.display = 'none';
document.getElementById(id_link).style.display = '';
}