Bookmark This site (Add a Sharepoint site to your favourite sites code

Add the following code in to "Content Editor Webpart":

<center><button onClick="if (document.all) {window.external.AddFavorite(location.href, 'Maddy Favourites')} else {window.sidebar.addPanel('Maddy Favourites',location.href,'')}; return false">Bookmark This Site</button></center>