function AddFavorite(sURL, sTitle){
  try{
    window.external.addFavorite(sURL, sTitle);
  }catch (e){
    try{
      window.sidebar.addPanel(sTitle, sURL, "");
    }catch (e){
      alert("加入收藏失败，请使用Ctrl+D进行添加");
    }
  }
}
function setHomepage(pageURL) {
  if (document.all) {
    document.body.style.behavior='url(#default#homepage)';
    document.body.setHomePage(pageURL);
  }else {
    try { //IE
      netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
    } catch (e) {
      try{ //Firefox
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
      prefs.setCharPref('browser.startup.homepage',pageURL);         
      } catch(e) {
        alert( "您的浏览器不支持该操作，请使用浏览器菜单手动设置." );
      }
    }
  }
}