function bookmark() {
	var ver = navigator.appName;
	var num = parseInt(navigator.appVersion);
        if(ver=='Netscape') {
                alert('Press CTRL+D to bookmark this page');
        } else if((ver=='Microsoft Internet Explorer')&&(num >= 4)) {
		window.external.AddFavorite(siteurl,title);
	} else if(document.all) {
		window.external.AddFavorite(siteurl,title);

	} else if(window.sidebar) {
                window.sidebar.addPanel(title,siteurl,'');
	} else if(window.opera && window.print) {
		return true;
	}
}