This is the content of the wasocial.js generated by SMT 2.0:
function addBookmark(title, url) {
if (window.sidebar) { // firefox
window.sidebar.addPanel(title, url,"");
} else if( document.all ) { //MSIE
window.external.AddFavorite( url, title);
} else {
alert("Sorry, your browser doesn't support this feature");
}
}