var numImages = "20";
var delay = 5000; 
var path = "images/header/header_";

ns4 = ((navigator.appName == 'Netscape') && (parseInt(navigator.appVersion) <= 4.8))? true:false
ns6 = ((navigator.appName == 'Netscape') && (parseInt(navigator.appVersion) > 4.8))? true:false
ie1 = (navigator.appName != 'Opera') ? true:false
ie = (navigator.appName != 'Netscape')? true:false

var imageArray = new Array();
for (var i=0; i < numImages; ++i)
{ 
	if (i<9)
		imageArray[i] = path+"0"+(i+1)+".png";
	else
		imageArray[i] = path+(i+1)+".png";
}

/*var currentImage = Math.floor(Math.random()*numImages);*/
var currentImage = 20;

var numChanges = 0;
var maxChanges = 50;

function ChangeImage()
{
	if (document.images)
	{
		currentImage = Math.floor(Math.random()*numImages);
		numChanges++;
		
/*		if((ie) && (ie1))
		{
			document.images.header.style.filter='blendTrans(duration=2)'
			document.images.header.style.filter='blendTrans(duration=CrossFadeDuration)'
			document.images.header.filters.blendTrans.Apply()      
   			document.images.header.src = imageArray[currentImage]
			if (document.all)
			{
				document.images.header.filters.blendTrans.Play()
			}
		}
		else
*/
		if (numChanges<maxChanges)
		{
			var arVersion = navigator.appVersion.split("MSIE")
			var version = parseFloat(arVersion[1])
	
			if ((version >= 5.5) && (version < 7.0) && (document.body.filters)) 
			{
				document.header.filters(0).src = imageArray[currentImage];
			}
			else
			{
				document.header.src = imageArray[currentImage];
			}
		}
	}
}

setInterval("ChangeImage()", delay);