function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}
        
function GNA_ciGroup(event) { //v3.0
  var i,img,nbArr,args=GNA_ciGroup.arguments;

  if (event == "down") {

    if ((nbArr = document[args[1]+"_"+args[6]]) != null)
      for (i=0; i < nbArr.length; i++) { 
        img=nbArr[i]; 
        img.src = img.MM_up; 
        img.MM_dn = 0; 
      }
    document[args[1]+"_"+args[6]] = nbArr = new Array();
    for (i=2; i < args.length-3; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = args[i+1];
      nbArr[nbArr.length] = img;
	
      document.images[args[1]+"_"+args[6]+"_open"].src = args[5];

      if (args[4] >= 0 && args[4] != 'res') {
        var fret = args[4]+parseInt(document.forms[args[6]].position.value);
        var intfret = parseInt(args[4]);
 
        var basevalue = document.forms[args[6]].elements[args[1]+"_root"].value;
        document.forms[args[6]].elements[args[1]+"_fret"].value = intfret;
	parseInt(basevalue);
	if (args[4]==basevalue) { document.forms[args[6]].elements[args[1]].value = basevalue;  }
	else { document.forms[args[6]].elements[args[1]].value = fret;  }
      }
      else {
        document.forms[args[6]].elements[args[1]+"_fret"].value = '';
        document.forms[args[6]].elements[args[1]].value = '';    
      }
    } 
  }
}