userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		screening_o = newImage("images/screening-o.gif");
		screening_d = newImage("images/screening-d.gif");
		sponsors_o = newImage("images/sponsors-o.gif");
		sponsors_d = newImage("images/sponsors-d.gif");
		news_o = newImage("images/news-o.gif");
		news_d = newImage("images/news-d.gif");
		home_o = newImage("images/home-o.gif");
		home_d = newImage("images/home-d.gif");
		about_o = newImage("images/about-o.gif");
		about_d = newImage("images/about-d.gif");
		win_o = newImage("images/win-o.gif");
		win_d = newImage("images/win-d.gif");
		resources_o = newImage("images/resources-o.gif");
		resources_d = newImage("images/resources-d.gif");
		signup_o = newImage("images/signup-o.gif");
		signup_d = newImage("images/signup-d.gif");
		enter_o = newImage("images/enter-o.gif");
		enter_d = newImage("images/enter-d.gif");
		greenyourfilm_o = newImage("images/greenyourfilm-o.gif");
		greenyourfilm_d = newImage("images/greenyourfilm-d.gif");
		blog_o = newImage("images/blog-o.gif");
		facebook_o = newImage("images/facebook-o.gif");
		youtube_o = newImage("images/youtube-o.png");
		myspace_o = newImage("images/myspace-o.gif");
		twitter_o = newImage("images/twitter-o.gif");
		home_o078 = newImage("images/home-o-78.gif");
		about_o082 = newImage("images/about-o-82.gif");
		win_o085 = newImage("images/win-o-85.gif");
		screening_o088 = newImage("images/screening-o-88.gif");
		sponsors_o091 = newImage("images/sponsors-o-91.gif");
		news_o094 = newImage("images/news-o-94.gif");
		enter_o097 = newImage("images/enter-o-97.gif");
		Green_your_film_o = newImage("images/Green_your_film-o.gif");
		resources_o103 = newImage("images/resources-o-103.gif");
		sign_up_o = newImage("images/sign_up-o.gif");
		contact_o = newImage("images/contact-o.gif");
		judges_o = newImage("images/judges-o.gif");
		preloadFlag = true;
	}
}