var map = null;
    var geocoder = null;

    function initialize() {
      if (GBrowserIsCompatible()) {
      	map = new GMap2(document.getElementById("karte"));
        map.setCenter(new GLatLng(53.566414, 9.992065), 10);
        geocoder = new GClientGeocoder();
      }
    }

    function showAddress(address) 
    {
      if (geocoder) 
      {
        geocoder.getLatLng(address,
          function(point) 
          {
            if (!point) 
            {
              //alert(address + " not found");
            } 
            else 
            {
              map.setCenter(point, 15);
              var marker = new GMarker(point);
              map.addOverlay(marker);
              map.addControl(new GSmallMapControl());
            }
          }
        );
      }
    }