function addCookie(url,url_name)//兼容IE和Firefox的收藏
{
		if (document.all)
		{
				window.external.addFavorite(url,url_name);
		}
		else if (window.sidebar)
		{
				window.sidebar.addPanel( url_name,url, "");
		}
}

function setHomepage(url)//兼容IE和Firefox的设为首页
{
		if (document.all)
		{
				document.body.style.behavior='url(#default#homepage)';
				document.body.setHomePage(url);
		}
		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',url);
		}
}