function getBrowserInfo() {

	var t,v = undefined;

	if (window.opera) t = 'Opera';

	else if (document.all) {

		t = 'IE';

		var nv = navigator.appVersion;

		var s = nv.indexOf('MSIE')+5;

		v = nv.substring(s,s+1);

	}

	else if (navigator.appName) t = 'Netscape';

	return {type:t,version:v};

}

function bookmark(a){

	var url = window.document.location;

	var title = window.document.title;

	var b = getBrowserInfo();

	if (b.type == 'IE' && 7 > b.version && b.version >= 4) window.external.AddFavorite(url,title);

	else if (b.type == 'Opera') {

		a.href = url;

		a.rel = "sidebar";

		a.title = url+','+title;

		return true;

	}

	else if (b.type == "Netscape") window.sidebar.addPanel(title,url,"");

	else alert("Нажмите CTRL-D, чтобы добавить страницу в закладки.");

	return false;

}