// Configurazione
fadeColor = "#FF0000"; 
stepIn = 17; 
stepOut = 25; 
autoFade = false; 
sloppyClass = true;
macCompat = false;

//Codice 
hexa = new makearray(16);
for(var i = 0; i < 10; i++)
  hexa[i] = i;
hexa[10] = "a"; 
hexa[11] = "b"; 
hexa[12] = "c";
hexa[13] = "d"; 
hexa[14] = "e"; 
hexa[15] = "f";
document.onmouseover = domouseover;
document.onmouseout = domouseout;
fadeColor = dehexize(fadeColor.toLowerCase());
var fadeId = new Array();

function dehexize(Color)
{
  var colorArr = new makearray(3);
  for (i=1; i<7; i++)
  {
    for (j=0; j<16; j++)
    {
      if (Color.charAt(i) == hexa[j])
      {
        if (i%2 !=0)
          colorArr[Math.floor((i-1)/2)]=eval(j)*16;
        else
          colorArr[Math.floor((i-1)/2)]+=eval(j);
      }
    }
  }
  return colorArr;
}

function domouseover() 
{
  if (document.all)
  {
    var srcElement = event.srcElement;
    if ((srcElement.tagName == "A" && autoFade && srcElement.className != "nofade") || 
      srcElement.className == "fade" || 
      (sloppyClass && srcElement.className.indexOf("fade") != -1)) 
    {
      if (!srcElement.startColor) 
      {
        srcElement.startColor = (srcElement.style.color)? srcElement.style.color : srcElement.currentStyle.color;
        srcElement.startColor = dehexize(srcElement.startColor.toLowerCase());
      }
      var link = (macCompat ? srcElement.name : srcElement.uniqueID);
      if (link) 
        fade(srcElement.startColor,fadeColor,link,stepIn); 
      else if (macCompat) 
        alert("Error: Mac Compatility mode enabled, but link has no name.");
     }
  }
}

function domouseout() 
{
  if (document.all)
  {
    var srcElement = event.srcElement;
    if ((srcElement.tagName == "A" && autoFade && srcElement.className != "nofade") || 
      srcElement.className == "fade" || 
      (sloppyClass && srcElement.className.indexOf("fade") != -1)) 
    {
      var link = (macCompat ? srcElement.name : srcElement.uniqueID);
      if (link) 

        fade(fadeColor,srcElement.startColor,link,stepIn);
    }
  }
}

function makearray(n) 
{
  this.length = n;
  for (var i = 1; i <= n; i++)
    this[i] = 0;
  return this;
}

function hex(i) 
{
  if (i < 0)
    return "00";
  else if (i > 255)
    return "ff";
  else
    return "" + hexa[Math.floor(i/16)] + hexa[i%16];
}

function setColor(r, g, b, element) 
{
  var hr = hex(r); 
  var hg = hex(g); 
  var hb = hex(b);
  element.style.color = "#" + hr + hg + hb;
}

function fade(s,e,element,step) 
{
  var sr = s[0]; 
  var sg = s[1]; 
  var sb = s[2];
  var er = e[0]; 
  var eg = e[1]; 
  var eb = e[2];

  if (fadeId[0] != null && fade[0] != element && eval(fadeId[0])) 
  {
    var orig = eval(fadeId[0]);
    setColor(orig.startColor[0], orig.startColor[1], orig.startColor[2], orig);
    var i = 1;
    while (i < fadeId.length) 
    {
      clearTimeout(fadeId[i]);
      i++;
    }
  }
  for (var i = 0; i <= step; i++) 
  {
    fadeId[i+1] = setTimeout("setColor(Math.floor(" + sr +
      " *(( " + step + " - " + i + " )/ " + step + " ) + " + er + " * (" + i + "/" +
      step + ")), Math.floor(" + sg + " * (( " + step + " - " + i + " )/ " + step + 
      " ) + " + eg + " * (" + i + "/" + step + ")), Math.floor(" + sb + 
      " * ((" + step + "-" + i + ")/" + step + ") + " + eb + 
      " * (" + i + "/" + step + "))," + element + ");", i*step);
    }
    fadeId[0] = element;
}