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) {
		downloads_02_over = newImage("images/downloads_02-over.gif");
		downloads_03_over = newImage("images/downloads_03-over.gif");
		downloads_04_over = newImage("images/downloads_04-over.gif");
		downloads_08_over = newImage("images/downloads_08-over.gif");
		downloads_09_over = newImage("images/downloads_09-over.gif");
		downloads_10_over = newImage("images/downloads_10-over.gif");
		downloads_11_over = newImage("images/downloads_11-over.gif");
		downloads_12_over = newImage("images/downloads_12-over.gif");
		downloads_13_over = newImage("images/downloads_13-over.gif");
		downloads_14_over = newImage("images/downloads_14-over.gif");
		downloads_15_over = newImage("images/downloads_15-over.gif");
		downloads_16_over = newImage("images/downloads_16-over.gif");
		downloads_28_over = newImage("images/downloads_28-over.gif");
		downloads_29_over = newImage("images/downloads_29-over.gif");
		downloads_30_over = newImage("images/downloads_30-over.gif");
		downloads_31_over = newImage("images/downloads_31-over.gif");
		downloads_32_over = newImage("images/downloads_32-over.gif");
		downloads_36_over = newImage("images/downloads_36-over.gif");
		downloads_37_over = newImage("images/downloads_37-over.gif");
		downloads_38_over = newImage("images/downloads_38-over.gif");
		preloadFlag = true;
	}
}