function unCheck(myform)
{
	for (var i=0;i<myform.checked.length;i++)
	{
		var e = myform.checked[i];
		if (e.checked==false)
		{
			e.checked = true;
		}
		else
		{
			e.checked = false;
		}
	}
}

function CheckAll(myform)
{
	for (var i=0;i<myform.checked.length;i++)
	{
		var e = myform.checked[i];
			e.checked = true;
	}
}

function Plays(myform){
	var newurl="";
	for (var i=0;i<myform.checked.length;i++)
	{
		var e = myform.checked[i];
		if (e.checked == true)
		{
				newurl=newurl+"|"+e.value;
		}
	}
	if (newurl=="")
	{
		alert('ÇëÄúÑ¡ÔñºóÔÙ²¥·Å');
	}else{
		newurl=newurl.substr(1,newurl.length);
		window.open("/mp3/Yxplaylist1.asp?song="+newurl);
	}
}