var isIE5;
var idx = -1;

var pitchers = new Array(3);

pitchers[0] = "../images/aidStation1.jpg";
pitchers[1] = "../images/aidStation2.jpg";
pitchers[2] = "../images/aidStation4.jpg";

function init()
{
	var ua = navigator.userAgent;

	if(ua.indexOf("IE 5") > -1 || ua.indexOf("IE 6") > -1)
        isIE = true;
   else
		isIE = false;
	
	preloadImages();
	
	displayNextPicture();
}

function displayNextPicture()
{
	var a = document.preloaded;
	var thisIDX;
	
	idx++;
	
	if(idx < a.length)
	{
		thisIDX = idx;
	}
	else
	{
		thisIDX = 0;
		idx = 0;
	}

	document.images['rotator'].src = document.preloaded[thisIDX].src;
	
	runIt();
}

function runIt()
{
	setTimeout('displayNextPicture();', 3500);
}

function preloadImages()
{
	var i;
	var d = document;

	if(d.images)
	{
		if(!d.preloaded)
			d.preloaded = new Array(pitchers.length);

		for(i = 0;i < pitchers.length;i++)
      {
			d.preloaded[i] = new Image();
         d.preloaded[i].src = pitchers[i];
      }
	}
}