function getCookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while(i < clen)
	{
	var j = i + alen;
	if (document.cookie.substring(i, j) == arg)
	{
		return getCookieVal(j);
	}
	i = document.cookie.indexOf(" ", i) + 1;
	if(i == 0) break;
	}
	return;
}

function getCookieVal(offset)
{
var endstr = document.cookie.indexOf(";", offset);
if(endstr == -1)
{
endstr = document.cookie.length;
}
return unescape(document.cookie.substring(offset, endstr));
}

function deleteCookie(name,path,domain)
{
if(getCookie(name))
{
document.cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT";
}
}
if(0==1)
{ 
deleteCookie("BDUSS","/","baidu.com");
}

var userid="";
var i_url=location.href;
var index_str="http://www.baidu.com";
var passport_str="http://passport.baidu.com";
var login_str=passport_str+"/?login&tpl=mp&u="+i_url;
var exit_str=passport_str+"/?logout&u="+i_url;
var mb_str="<a href='#' onclick='return detectBrowser()'>我的音乐盒</a>";
function enterState()
{
	if(userid=="")
	{
		document.getElementById("usrbar").innerHTML="<a href="+index_str+">百度首页</a>&nbsp;|&nbsp;<a href="+login_str+">登录</a>";
	}else
	{
		document.getElementById("usrbar").innerHTML="<a href="+passport_str+"/#zm,0 target=_blank><strong>"+userid+"</strong></a>&nbsp;|&nbsp;"+mb_str+"&nbsp;|&nbsp;<a href="+index_str+">百度首页</a>&nbsp;|&nbsp;<a href="+exit_str+">退出<a>";
	}
}

function openmb() {
    URL="http://box.zhangmen.baidu.com/m?gate=5&ct=134217728&tn=baidumt,未选择歌曲%20%20&word=mp3,,,[]&si=;;未选择歌曲;;;;&lm=16777216";
    width=384;
    height=542;
    var left = ( screen.width - width ) / 2;
    var top = 0;
    window.open(URL,'','width='+width+',height='+height+',top='+top+',left='+left+',scrollbars=0,resizable=0,status=1');
}

function detectBrowser()
{
 var browser=navigator.appName;
 if (browser=="Netscape") 
	{
	alert("抱歉，您的浏览器无法支持音乐盒功能，请更换其他浏览器（如IE）再试。")
	}
	else if(browser=="Microsoft Internet Explorer")
	{
	openmb();
	}
  return false;
}