function loadSample(track_id, track_no, disc_no, product_sku){
	
	if(document.getElementById("track_" + track_id).style.display == 'block'){
		document.getElementById("track_" + track_id).style.display = 'none';
		document.getElementById("track_" + track_id).innerHTML = "";	
		return;
	}
	
	advAJAX.get({
		url: "/player.php",
	    parameters : {
			"tid" : track_id,
			"tno" : track_no,
			"dno" : disc_no,
			"pid" : product_sku
		
		},
		onSuccess : function(obj) { 
		document.getElementById("track_" + track_id).innerHTML = obj.responseText;	
		document.getElementById("track_" + track_id).style.display = 'block';
		}
	});


}