JavaScript实现浏览器添加收藏与设为首页功能详解

<script>
  function _addFavorite() {
      var url = window.location;
      var title = document.title;
      var ua = navigator.userAgent.toLowerCase();
      if (ua.indexOf("360se") > -1) {
          alert("由于360浏览器功能限制，请按 Ctrl+D 手动收藏！");
      }
      else if (ua.indexOf("msie 8") > -1) {
          window.external.AddToFavoritesBar(url, title); //IE8
      }
      else if (document.all) {//IE类浏览器
        try{
         window.external.addFavorite(url, title);
        }catch(e){
         alert('您的浏览器不支持,请按 Ctrl+D 手动收藏!');
        }
      }
      else if (window.sidebar) {//firfox等浏览器；
          window.sidebar.addPanel(title, url, "");
      }
      else {
          alert('您的浏览器不支持,请按 Ctrl+D 手动收藏!');
      }
  }    
  </script>　　<a href="javascript:void(0)" rel="external nofollow"  onclick="_addFavorite()">加入收藏</a>

function addFavorite2() {
var url = window.location;
var title = document.title;
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf("360se") > -1) {
alert("由于360浏览器功能限制，请按 Ctrl+D 手动收藏！");
}
else if (ua.indexOf("msie 8") > -1) {
window.external.AddToFavoritesBar(url, title); //IE8
}
else if (document.all) {
try{
window.external.addFavorite(url, title);
}catch(e){
alert('您的浏览器不支持,请按 Ctrl+D 手动收藏!');
}
}
else if (window.sidebar) {
window.sidebar.addPanel(title, url, "");
}
else {
alert('您的浏览器不支持,请按 Ctrl+D 手动收藏!');
}
}

<a href=# onclick="javascript:addFavorite2()">加入收藏</a>

// JavaScript Document
// 加入收藏 <a onclick="AddFavorite(window.location,document.title)">加入收藏</a>
 
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");
    }
  }
}
//设为首页 <a onclick="SetHome(this,window.location)">设为首页</a>
function SetHome(obj,vrl){
    try{
        obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
    }
    catch(e){
        if(window.netscape) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }
            catch (e) {
                alert("此操作被浏览器拒绝！\n请在浏览器地址栏输入“about:config”并回车\n然后将 [signed.applets.codebase_principal_support]的值设置为'true',双击即可。");
            }
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage',vrl);
         }
    }
}

<script>
function addfavorite()
{
  if (document.all)
  {
   window.external.addFavorite('//www.jb51.net','我们');
  }
  else if (window.sidebar)
  {
   window.sidebar.addPanel('我们', '//www.jb51.net', "");
  }
}
</script>
<body>
<a href="#" rel="external nofollow"  onclick="addfavorite()">加入收藏！</a>