function sethomepage()
{
	var confirm_type=0;
    var url = "http://"+window.location.host;
    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);

    }
}
function addfavorite()
{
	if (document.all)
	{
		window.external.addFavorite("http://so.webgle.com", "网丫搜索");
	}
	else if (window.sidebar)
	{
		window.sidebar.addPanel("网丫搜索", "http://so.webgle.com", "");
	}
}