function add2cart(pid)
{
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    //document.getElementById("addsuccess").innerHTML=xmlhttp.responseText;
	document.getElementById("addsuccess_"+pid).innerHTML='Đã thêm vào giỏ hàng';
	document.getElementById("mini_cart").innerHTML='<iframe height="90px" src="index.php?minicart=mrdiep" frameborder="0" scrolling="no" width="100%"></iframe>';
    }
  }
xmlhttp.open("GET","index.php?page=shoppingCart&action=add&viewParent=1&id="+pid,true);
xmlhttp.send();
}
//http://celashop.com/index.php?page=shoppingCart&action=add&viewParent=1&id=31