function getMusicList(name){
	if(name == null)		name="musicList";
	var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
	if(arr != null) return unescape(arr[2]); 
	else return null;
}

function setMusicList(value,name){
	if(name == null)  name="musicList";
	var exp  = new Date();    //new Date("December 31, 9998");
	exp.setTime(exp.getTime() + 12*60*60*1000);//12 hours
	document.cookie = name + "="+ escape(value) +";path=/;domain=music98.net;expires="+ exp.toGMTString();
}

function appendMusicList(value,name){
	if(name == null)  name="musicList";
	var musicList=getMusicList(name);
	var tempValue="";
	var token="&";
	if(musicList) tempValue=musicList+token+value;
	else tempValue=value;
	setMusicList(tempValue,name);
}

function clearMusicList(name){
	if(name == null)  name="musicList";
	setMusicList("",name);
}

function addPlayList(form3){
	var values="";
	var url="";
	var selected=false;
	for (var i=0;i<form3.elements.length;i++){
		var e = form3.elements[i];
		if (e.checked==true){
			values += e.value+"&";
			url += "id="+e.value+"&";
			selected=true;
		}
	}
	
	if(selected){
		values = values.substr(0,values.length-1);
		res=getMusicList("isOpen");
		if(res ==null || res ==0){
			url = url.substr(0,url.length-1);
			var x=parseInt(Math.random()*99+1);
			var y=parseInt(Math.random()*99+1);
			var w = window.open("/Play.htm?"+url+"&B1.x="+x+"&B1.y="+y,'m98','');
			w.focus();
		}else	appendMusicList(values);
	}else{
		alert("至少要选择歌曲一首以上才能添加");
	}
}