function agregar(){
	if ((navigator.appName=="Microsoft Internet Explorer") && (parseInt
		(navigator.appVersion)>=4)) {
		var url="http://www.oriolplanas.cat/zhufeng";
		var titulo="Zhu Feng - Kung Fu";
		window.external.AddFavorite(url,titulo);
	}
	else {
	if(navigator.appName == "Netscape") 
		alert ("Press Crtl+D to add this site to your Bookmarks");
	}
}