var listofimages=new Array();
	var descofimages=new Array();
	var currimage = 0;
	var maximages = 0;
	var disablebutts = 0;

	function backImageInfo()
	{
	    if (disablebutts == 1)
	    {
	      return;
	    }
	    
	    currimage--;
	    if (currimage <= 0) { currimage = 0 };
	    
		changeImageInfo(listofimages[currimage],descofimages[currimage]);
	}		
	function nextImageInfo()
	{
	    if (disablebutts == 1)
	    {
	      return;
	    }
	    currimage++;

	    if (currimage >= maximages) { currimage = maximages-1 };
		changeImageInfo(listofimages[currimage],descofimages[currimage]);
	}	
		
function changeImageInfo(imageURL,title)
	{
	
	  for (x in listofimages)
	  {
	    if (listofimages[x] == imageURL)
	    {
	      currimage = x;
	    }
	  } 
	  document.big_image.src = imageURL;
	  document.getElementById("imagedesc").innerHTML = title;
	}


function makeHandler(a) 
{
  return function() { changeImageInfo(listofimages[a],descofimages[a]); return false;};
}
function getMyimages () 
{

var found = 0;

if (!document.getElementsByTagName) return false;
  var links=document.getElementsByTagName("a");
  for (var i=0; i < links.length; i++) {
    if (links[i].className.match("mydesc")) 
    {
      links[i].onclick=makeHandler(found);
	  found++;
    }
  }
}  

function startup_tasks()
{
  getMyimages();
}