function ZS_openGisBrowser(HstID) { //v1.0
     theURL="http://www.gis.zh.ch/gb/zvv.asp?hst=" + HstID;
     //alert(theURL);
     winName="GISBrowser";
     features="toolbar=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=700,height=600"
     window.open(theURL,winName,features);
}