function getBrowserInfo() {
 var t,v = undefined;
 
 if (navigator.userAgent.toLowerCase().indexOf('chrome') > -1) {
    t = 'Chrome';
    v = navigator.userAgent.replace(/^.*Chrome\/([\d\.]+).*$/i, '$1');	
 }
 else 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, url, 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 = 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;
};