///////////////////////////////////////////////////////////////////////////////////////////////////////////
// Markets > Metals //
///////////////////////////////////////////////////////////////////////////////////////////////////////////
var metalimages=new Array();
var numImages=4;

for (i=0; i<numImages; i++)
{
  metalimages[i]=new Image();
  metalimages[i].src="img/images/markets/metals/"+(i+1)+".jpg";
}
var curImage=-1;

function swapMetalImages()
{
  if (document.images)
  {
    var nextImage=curImage+1;
    if (nextImage>=numImages)
      nextImage=0;
    if (metalimages[nextImage] && metalimages[nextImage].complete)
    {
      var target=0;
      if (document.images.metalPhotos)
        target=document.images.metalPhotos;
      if (document.all && document.getElementById("metalPhotos"))
        target=document.getElementById("metalPhotos");

// Changing the captions!!! 

if (nextImage==0) {
	document.getElementById('overviewImageCaption').innerHTML = 'Coil cars lined up outside of steel mill; ready for loading.';
} else if (nextImage==1) {
	document.getElementById('overviewImageCaption').innerHTML = 'Gondola rail cars filled with scrap metal en route to recycling facility.';
} else if (nextImage==2) {
	document.getElementById('overviewImageCaption').innerHTML = 'Closed top hopper cars filled with EAF dust en route to disposal site.';
} else if (nextImage==3) {
	document.getElementById('overviewImageCaption').innerHTML = 'EAF dust packaging system.';
}
  
      // Make sure target is valid. It might not be valid if the page has not finished loading.
      if (target)
      {
        target.src=metalimages[nextImage].src;
        curImage=nextImage;
      }

      setTimeout("swapMetalImages()", 7000);

    }
    else
    {
      setTimeout("swapMetalImages()", 700);
    }
  }
}

setTimeout("swapMetalImages()", 7000);