function preloadImages() {
  var d=document;
  if(d.images) {
    if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments;
    for(i=0; i<a.length; i++)
      if(a[i].indexOf("#")!=0) {
        d.p[j]=new Image;
        d.p[j++].src=a[i];
      }
  }
}

function findObj(n, d) {
  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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById)
    x=d.getElementById(n);
  return x;
}

function swapImage() {
  var i,j=0,x,a=swapImage.arguments;
  document.sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
    if((x=findObj(a[i]))!=null) {
      document.sr[j++]=x;
      if(!x.oSrc)
        x.oSrc=x.src;
      x.src=a[i+2];
    }
}

function swapImgRestore() {
  var i,x,a=document.sr;
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
    x.src=x.oSrc;
}

//--------------------------------------------------------

function nbGroup(event, grpName) {
  var i,img,nbArr,args=nbGroup.arguments;
  if(event == "init" && args.length > 2) {
    if((img = findObj(args[2])) != null && !img.init) {
      img.init = true;
      img.up = args[3];
      img.dn = img.src;
      if((nbArr = document[grpName]) == null)
        nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for(i=4; i < args.length-1; i+=2)
        if((img = findObj(args[i])) != null) {
          if(!img.up)
            img.up = img.src;
          img.src = img.dn = args[i+1];
          nbArr[nbArr.length] = img;
        }
    }
  }
  else if(event == "over") {
    document.nbOver = nbArr = new Array();
    for(i=1; i < args.length-1; i+=3)
      if((img = findObj(args[i])) != null) {
        if(!img.up)
          img.up = img.src;
        img.src = (img.dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.up);
        nbArr[nbArr.length] = img;
      }
  }
  else if(event == "out" ) {
    for(i=0; i < document.nbOver.length; i++) {
      img = document.nbOver[i];
      img.src = (img.dn) ? img.dn : img.up;
    }
  }
  else if(event == "down") {
    nbArr = document[grpName];
    if(nbArr)
      for(i=0; i < nbArr.length; i++) {
        img=nbArr[i];
        img.src = img.up;
        img.dn = 0;
      }
    document[grpName] = nbArr = new Array();
    for(i=2; i < args.length-1; i+=2)
      if((img = findObj(args[i])) != null) {
        if(!img.up)
          img.up = img.src;
        img.src = img.dn = (args[i+1]) ? args[i+1] : img.up;
        nbArr[nbArr.length] = img;
      }
  }
}


function esempio(str) {
  searchWin = window.open(str,'esempio','scrollbars=no,resizable=yes,width=900,height=750,status=no,location=no,toolbar=no');
}