function bookmark(title, url){
	// ha valamelyik ie
	if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
		window.external.AddFavorite(url,title);
	} 
	//ha Netscape tipusu
	else if (navigator.appName == "Netscape") {
		//ha Safari vagy Webkit
		if ((navigator.userAgent.indexOf(' Safari/') > -1) || (navigator.userAgent.indexOf('WebKit/') > -1) ){
			alert("Press CTRL-D to bookmark");	
		}
		//ha Mozilla
		else{
			window.sidebar.addPanel(title, url, "");
		}
	}
	//ha pl. Opera
	else {
	 alert("Press CTRL-D (Opera) to bookmark");
	}
}