//<a href="javascript:void(setHomePage())" id="iehomepage">设为首页</a>
function setHomePage(){
      if(document.all){
       var iehomepage=document.getElementById("iehomepage");
       iehomepage.style.behavior='url(#default#homepage)';
       iehomepage.setHomePage('http://'+location.host);
   }else{
      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]设置为'true'");  
                    }
           } 

            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage','http://'+location.host);
   }
   }
//<a href="javascript:void(addFavor('百度下你就知道'))">加入收藏</a>
function addFavor(title){ 
if (document.all) 
window.external.AddFavorite("http://"+location.host, title); 
else if (window.sidebar) 
window.sidebar.addPanel(title, "http://"+location.host, "") 
}