add-fav.html

<a href="#" title="添加到收藏夹" onclick="javascript:AddFavorite();">添加到收藏夹</a>
<a href="#" title="设为主页" onclick="this.style.behavior='url(#default#homepage)';this.setHomePage(window.location.href);">设为主页</a>
function AddFavorite(){
  var url = window.location.href,tit=document.title;
	try{window.external.addFavorite(url, tit);}
	catch (e){
		try {window.sidebar.addPanel(tit, url, "");}
		catch (e){alert("无法自动添加到收藏夹，请 Ctrl + D 手动添加");}
	}
};