<!--

    /* Hinweis: Der Frame für die Navigation wurde hier mit "nav" benannt.
                Der Frame für die Seiten wurde hier mit "sites" benannt.
                (Benennung: siehe dazu in der index.htm)

       Icon für Link plazieren und die dazugehörende htm-Datei laden:      */

    var icon = new Array();
    var OFF = 0; var ON = 1;
    icon[OFF] = new Image(); icon[OFF].src = "images/blank.gif";
    icon[ON]  = new Image(); icon[ON].src  = "images/quadrat_00009Cblue.gif";

    var menuID = new Array("M0","M1","M2","M3","M4","M5","M6","M7","M8"); var n = menuID.length;
    var HTMFile = new Array("startseite","chor","rueckblick","konzerte","foerderkreis","links","proben","kontakt","downloads");

    function setIcon(i)
     {
       for (var k=0; k < i; k++) parent.nav.document.images[menuID[k]].src = icon[OFF].src;
       for (var k=i+1; k < n; k++) parent.nav.document.images[menuID[k]].src = icon[OFF].src;
       parent.nav.document.images[menuID[i]].src = icon[ON].src;
       parent.sites.document.location.href = HTMFile[i]+".htm";
     }

    function set2Icon(i)
     {
       for (var k=0; k < i; k++) parent.nav.document.images[menuID[k]].src = icon[OFF].src;
       for (var k=i+1; k < n; k++) parent.nav.document.images[menuID[k]].src = icon[OFF].src;
       parent.nav.document.images[menuID[i]].src = icon[ON].src;
     }

    function initIcon()
     {
       for (i in HTMFile)
        {
          var result=parent.sites.document.location.href.lastIndexOf(HTMFile[i]);
              /* nur für Test: parent.sites.document.write(i+"&nbsp;"+HTMFile[i]+"&nbsp;"+result+"<br>");
                 if (result != -1) parent.sites.document.write(i+"&nbsp;"+HTMFile[i]+"&nbsp;"+result+"<br>");
              */
          parent.nav.document.images[menuID[i]].src = icon[OFF].src;
          if (result != -1) parent.nav.document.images[menuID[i]].src = icon[ON].src;
        }
     }


    function AdWin(WebSite, Name, winWidth, winHeight, ScrollDef)
     {
       var h_adj = 5; var v_adj = 65;
       var horizontal = Math.max(0,(screen.availWidth - winWidth) / 2 - h_adj);
       var vertikal   = Math.max(0,(screen.availHeight - winHeight) / 2 - v_adj);
       winWidth  = Math.min(screen.availWidth, winWidth);
       winHeight = Math.min(screen.availHeight, winHeight);
       var parameter = ('width='+ winWidth +',height='+ winHeight +',left='+ horizontal +',top='+ vertikal +',scrollbars='+ ScrollDef);
       OpenWin = window.open(WebSite, Name,parameter);
     }


    function box_on(_id)
     {
      var obj = parent.sites.document.getElementById(_id).style;
      obj.visibility = "visible";
     }

    function box_off(_id)
     {
      var obj = parent.sites.document.getElementById(_id).style;
      obj.visibility = "hidden";
     }

//-->