function bookmarksite(title,url){
if (window.sidebar) // firefox
  window.sidebar.addPanel(title, url, "");
else if(window.opera && window.print){ // opera
  var elem = document.createElement('a');
  elem.setAttribute('href',url);
  elem.setAttribute('title',title);
  elem.setAttribute('rel','sidebar');
  elem.click();
} 
else if(document.all)// ie
  window.external.AddFavorite(url, title);
}