function MenueAuf(Men)
      {
        if(document.getElementById)
        {
          document.getElementById(Men).style.visibility="visible";
        }
      
        else if(document.all && !document.getElementById)
        {
          document.all[Men].style.visibility="visible";
        }
      }
      
      function MenueZu(Men)
      {
        if(document.getElementById)
        {
          document.getElementById(Men).style.visibility="hidden";
        }
      
        else if(document.all && !document.getElementById)
        {
          document.all[Men].style.visibility="hidden";
        }
      }
      
      function SpracheWechseln(language)
      {

        if(language=="menu_startEn"){
          window.location.href = "index.php?page=gruezi&sprache=en";
        }else{
          window.location.href = "index.php?page=gruezi&sprache=de";
        }
      }
      
      function anmelden(veranstaltung)
      {
      	  
          window.location.href = "index.php?selectedMenu=" + veranstaltung + "&page=anmeldung&checkForm=no&veranstaltung=" + veranstaltung;
      }