function userBrowser() {
	var return_ = "unknown";
	var UA = navigator.userAgent;
	if ((/Konqueror|Safari|KHTML/.test(UA))) {
		return_ = "KHTML";
		}
	if ((/Gecko/.test(UA)) && (return_ != "KHTML")) {
		return_ = "Gecko";
		}
	if ((/Opera/.test(UA))) {
		return_ = "Opera";
		}
	if ((/MSIE/.test(UA)) && (return_ != "Opera")) {
		return_ = "MSIE";
		}
	if ((return_ == "MSIE") && !((/MSIE 6\./.test(UA)) && (return_ != "Opera"))) {
		return_ = "MSIE7";
		}
	return return_;
	}

function fixPNG(img) {
	var imgID = (img.id) ? "id='" + img.id + "' " : "";
	var imgClass = img.classNames() ? "class='" + img.classNames().toArray().join(' ') + "' " : "";
	var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
	var imgStyle = "display:inline-block;" + img.style.cssText;
	var imgCursor = img.up().match('a') ? 'pointer' : 'default';
	var imgLang = (img.lang) ? "lang='" + img.lang + "' " : "";
	var strNewHTML = "<span " + imgID + imgClass + imgTitle + imgLang + " style=\"" + imgStyle + ";" + "cursor:" + imgCursor + ";" + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader" + "(src=\'" + img.src + "\', sizingMethod='image');\">&nbsp;</span>";
	img.outerHTML = strNewHTML;
	}

Event.observe(window, 'load', function() {
	$('scroll-top').observe('click', function(event) {
		event.stop();
		new Effect.ScrollTo('top', {offset: -33, duration: 0.3});
		});	
	}, false);