// JavaScript Document IMAGE ROTATOR 

function MM_preloadImages() //v3.0
{
  var d=document;
  if(d.images)
  {
    if(!d.MM_p)
      d.MM_p=new Array();
    var i, j=d.MM_p.length, a=MM_preloadImages.arguments;
    for(i=0; i<a.length; i++)
      if (a[i].indexOf("#")!=0)
      {
        d.MM_p[j]=new Image;
        d.MM_p[j++].src=a[i];
      }
  }
}

function MM_swapImgRestore() //v3.0
{
  var i, x, a=document.MM_sr;
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
    x.src=x.oSrc;
}

function MM_findObj(n, d) //v4.01
{
  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 && d.getElementById)
    x=d.getElementById(n);
  return x;
}

function MM_swapImage() //v3.0
{
  var i, j=0, x, a=MM_swapImage.arguments;
  document.MM_sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null)
   {
     document.MM_sr[j++]=x;
     if(!x.oSrc)
       x.oSrc=x.src;
     x.src=a[i+2];
   }
}

function preloadImgs()
{
  for(var j=0;j<imgs.length;j++)
  {
    MM_preloadImages(imgs[j]);
  }
}

// Comma separated list of images to rotate
// sourced from rotator.php
// var imgs = new Array();
// delay in milliseconds between image swaps 1000 = 1 second
var delay = 5000;

// use random rotation
var random_rotation = true;

/* start indexing at -1, index is incremented before first use */
var ind = 0;
var last = -1;

function randomImages()
{
  if(random_rotation)
  {
    ind = Math.round(Math.random()*(imgs.length-1));
    while(ind == last)
    {
      ind = Math.round(Math.random()*(imgs.length-1));
    }
    last = ind;
  }
  MM_swapImage('rotator1', '', imgs[ind]);
  setTimeout('randomImages()', delay);
  if(! random_rotation)
  {
    ind = (ind+1) % imgs.length;
  }
}