设为首页和加入收藏通用JS

设为首页：

function setHomepage()
   {
        if (document.all)
        {
            document.body.style.behavior='url(#default#homepage)';
            document.body.setHomePage(location.href);
     
        }
        else if (window.sidebar)
        {
            if(window.netscape)
            {
                 try
                 {  
                    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  
                 }  
                 catch (e)  
                 {  
                    alert( "该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true" );  
                 }
            } 
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage',location.href);
     }
   } 

（或者这样也可以：<a href="javascript:;" onClick="this.style.behavior='url(#default#homepage)';this.setHomePage(location.href);return(false);">设为首页</a>）
加入收藏:

function addfavo()
   {
      window.external.AddFavorite(location.href, document.title);
   }