function add_favo(url, des, obj) 
{
	try {
		obj.external.AddFavorite(url, des);
	} catch (e) {alert (e);}
}

function set_home (url) 
{
	try {
		this.homepage.style.behavior = 'url(#default#homepage)';
		this.homepage.setHomePage (url);
	} catch (e) {alert (e);}
}

function rss()
{
	alert ("正在添加中...");
}


var $ = function(objId){
	if(!objId) {
		return null; 
	}
	
	if(document.getElementById) {
		return eval('document.getElementById("' + objId + '")');
	} else if (document.layers) {
		return eval("document.layers['" + objId +"']");
	} else {
		return eval('document.all.' + objId);
	}
 };

 function init ()
 {
	if (!document.all) {
		var sub_menu = $("sub_menu");
		sub_menu.style.height = document.documentElement.offsetHeight - 108;
	}
 }