function showNav(element){
	var elem = document.getElementById(element);
	elem.style.display = 'block';
}

function hideNav(element){
	var elem = document.getElementById(element);
	elem.style.display = 'none';
}

function eb(){
	var str = '<embed src="common/images/movie.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="300" height="400" wmode="opaque"></embed>';
	document.write(str);
}