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' && 9 > 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;
}