function setHomepage()
{
    if (document.all)
    {
        document.body.style.behavior='url(#default#homepage)';
        document.body.setHomePage('http://www.playcow.com/');
    } else if (window.sidebar) {
        if(window.netscape)
        {
            try
            {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }
            catch (e)
            {
                alert("Firefox暂无此功能，请手动设置。" );
            }
        }
    var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
    prefs.setCharPref('browser.startup.homepage','http://www.playcow.com/');
    }
}

function addBookmark() { 
	var title="PlayCow"
	var url="http://www.playcow.com/"
	if(window.sidebar) { 
		window.sidebar.addPanel(title, url,""); 
	} else if(document.all) { 
		window.external.AddFavorite(url, title); 
	} else if(window.opera && window.print) { 
		return true; 
	}
} 

//-->