function startSearch2() {

  if (document.searchForm2.dbwahl2[0].checked == true) {
    var searchEngine2 = "http://www.recherche-portal.ch/zbz/action/search.do?vid=ZAD&tab=default_tab&fn=search&vl(freeText0)=";
    var endstring2 = "";
  }
  else if (document.searchForm2.dbwahl2[1].checked == true) {
    var searchEngine2 = "https://biblio.uzh.ch/F/?func=find-b&find_code=WRD&request=";
    var endstring2 = "";
  }
  else if (document.searchForm2.dbwahl2[2].checked == true) {
    var searchEngine2 = "http://www.swissbib.ch/TouchPoint/start.do?View=zuerich&Query=-1=%22";
    var endstring2 = "%22";
  }
  else if (document.searchForm2.dbwahl2[3].checked == true) {
    var searchEngine2 = "http://opac.nebis.ch/F?func=find-b&find_code=WRD&request=";
    var endstring2 = "";
  }

  searchString2 = document.searchForm2.searchText2.value;
  if(searchString2 != "") {
  searchString2 = encodeURI(searchString2); 
  var finalSearchString2 = searchEngine2 + searchString2 + endstring2;
  window.open(finalSearchString2);
  }
  return false;
}

// Abschicken auch mit Enter ermoeglichen 
function checkKey() {
  if(window.event.keyCode == '13') {
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  }
  else return true;
}