function BrowserDetect()
{
	var ua = navigator.userAgent.toLowerCase(); 
	this.isGecko       = (ua.indexOf('gecko') != -1 && ua.indexOf('safari') == -1);
	this.isSafari      = (ua.indexOf('safari') != - 1);
	this.isOpera       = (ua.indexOf('opera') != -1); 
	this.isIE          = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) ); 
	this.isMozilla     = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
	this.isNS          = ( (this.isGecko) ? (ua.indexOf('netscape') != -1) : ( (ua.indexOf('mozilla') != -1) && !this.isOpera && !this.isSafari && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1) ) );
	this.isFirefox = (ua.indexOf('firefox') != - 1);
	
	// browser version
	this.versionMinor = parseFloat(navigator.appVersion); 
	
	// correct version number
	if (this.isGecko && !this.isMozilla) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('/', ua.indexOf('gecko/') + 6) + 1 ) );
	}
	else if (this.isMozilla) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('rv:') + 3 ) );
	}
	else if (this.isIE && this.versionMinor >= 4) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
	}
	else if (this.isSafari) {
		this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('safari/') + 7 ) );
	}
	else if (this.isOpera) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('opera') + 6 ) );
	}
	
	this.versionMajor = parseInt(this.versionMinor); 
	
}
var browser = new BrowserDetect();
var useFilter = browser.isIE;


function nextImage()
{
	img1 = images[current_image];
	current_image ++;
	if (current_image >= 2)
		current_image = 0;
	img2 = images[current_image];
	o1 = document.getElementById('anim1');
	o2 = document.getElementById('anim2');
	if (useFilter)
	{
		o1.style.filter = "fade(duration:2)";
//		o1.style.filter.Apply();
		o1.style.background = "url('"+img2+"')";
//		o1.style.filter.Play();
		window.setTimeout("nextImage()", 5000);
	}
	else
	{
		o1.style.background = "url('"+img1+"')";
		o2.style.background = "url('"+img2+"')";
		fadeIn('anim2', 0);
	}
}

function fadeIn(id, opacity)
{
	o = document.getElementById(id);
	if (opacity <= 100)
	{
		setOpacity(o, opacity);
		opacity += 4;
		window.setTimeout("fadeIn('"+id+"',"+opacity+")", 50);
	}
	else
		window.setTimeout("nextImage()", 5000);
}
function setOpacity(obj, opacity) {
	opacity = (opacity == 100)?99.999:opacity;
	obj.style.KHTMLOpacity = opacity/100; // Safari<1.2, Konqueror
	obj.style.MozOpacity = opacity/100; // Older Mozilla and Firefox
	obj.style.opacity = opacity/100; // Safari 1.2, newer Firefox and Mozilla, CSS3
}