function openmap() {
  window.open("http://www.yellowmap.at/KartenService/KartenService.asp?RADIUS=3000&DBName=YellowMapDB&Kennung=7111757&CSS=','1'","YellowMap","toolbar=0,location=0,directories=0,menuBar=0,scrollbars=1,resizable=1,width=675,height=500");
}