function Klappen(x) {
	if (document.getElementById(x)!=null){
	  if(document.getElementById(x).style.display == 'none'){
	  	document.getElementById(x).style.display='';
	  }	else{
	  		document.getElementById(x).style.display = 'none';
	  	}
	  return false;	
  } else return true;
}
/* DOM-Events manuell auslösen _2011-09-06-12-02-YY */
function EventAusloesen (eventType, elementID)
{ 
    var o = document.getElementById(elementID); 
    if (document.createEvent) { 
        var evt = document.createEvent("Events"); 
        evt.initEvent(eventType, true, true); 
        o.dispatchEvent(evt); 
    } 
    else if (document.createEventObject) 
    {
        var evt = document.createEventObject(); 
        o.fireEvent('on' + eventType, evt); 
    } 
    o = null;
}