function openwin(url,width,height,option) {
  if(!option) option = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizeable=1';
  if(!height) height=410;	if(!width) width=560;
  option += ',width='+width+',height='+height;
  option += ',left='+((screen.width-width)/2)+',top='+((screen.height-height)/2);
  // Fenstertitel aus Dateinamen erzeugen
  var name = new String(url);
  if(name.indexOf("?")>-1) name = name.substr(0,name.indexOf("?"));
  if(name.indexOf("index.html")>-1) name = name.substr(name.lastIndexOf("index.html")+1);
  if(name.indexOf(".")>-1) name = name.substr(0,name.indexOf("."));
  var newwin = window.open(url,name,option);
  newwin.focus();
}

function setCookie(sValue,sName,nDays) {
  var expires = "";
  if ( nDays ) {
    var d = new Date();
    d.setTime( d.getTime() + nDays * 24 * 60 * 60 * 1000 );
    expires = "; expires=" + d.toGMTString();
  }
  document.cookie = sName + "=" + escape(sValue) + expires + "; path=/";
}

function getCookie(sName) {
  var re = new RegExp( "(\;|^)[^;]*(" + sName + ")\=([^;]*)(;|$)" );
  var res = re.exec( document.cookie );
  return (res != null ? unescape(res[3]) : false);
}