function Bookmark(title, url) {
	if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
		window.external.AddFavorite(url,title);
  	} 
	else if (navigator.appName == "Netscape") {
    	window.sidebar.addPanel(title,url,"");
	}
	else if (window.opera && window.print) {
		var elem = document.createElement('a');
		elem.setAttribute('href', url);
		elem.setAttribute('title', title);
		elem.setAttribute('rel', 'sidebar');
		elem.click();
	} 
}

function swap(e, src) {
	document.getElementById(e).src = 'images/' + src;
}

function popup(url, winName, scrollbars, width, height, resizable) {
	var left = (screen.width - width) / 2;
	var top = (screen.height - height) / 2;
	var settings = "";
	settings += "top=" + top + ",";
	settings += "left=" + left + ",";
	settings += "location=0,";
	settings += "status=0,";
	settings += "scrollbars=" + scrollbars + ",";
	settings += "width=" + width + ",";
	settings += "height=" + height + ",";
	settings += "resizable=" + resizable;
	var newWindow = window.open(url, winName, settings);
}