How to add a Bookmark to the Browser using Javascript

Adding a Bookmark to the Browser using Javascript

function Add_Bookmark_Favorite(url,title) 

        {

         if (window.sidebar) 

         { // Mozilla Firefox Bookmark

             //Make sure "Load this bookmark in the sidebar is deselected

          window.sidebar.addPanel(title, url,"");

          return false;

         } 

         else if( window.external ) 

         { // IE Favorites

          window.external.AddFavorite( url, title); 

          return false;

         }

         else if(window.opera && window.print) 

         { // Opera Bookmark

                return !addToFav(url,title)

            }

        }

url -----> URL is the site which we want to make the site as a Bookmark

title ------> Title for the site given in the Bookmark