function toggleLayer(whichLayer){
        if (document.getElementById){
          // this is the way the standards work
          var style2 = document.getElementById(whichLayer).style;
          style2.display = style2.display? "":"block";
        }
        else if (document.all){
            // this is the way old msie versions work
            var style2 = document.all[whichLayer].style;
            style2.display = style2.display? "":"block";
          }
          else if (document.layers){
              // this is the way nn4 works
              var style2 = document.layers[whichLayer].style;
              style2.display = style2.display? "":"block";
            }
      }


      function MM_goToURL() { //v3.0
        var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
        for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
      }