เวลาที่เรากด add to cart แล้วมันขึ้นหน้าต่าง pop up เล็ก ๆ แบบนี้มา

<script type="text/javascript">
function startcart(shopid_obj, productid_obj, pathpic_obj, topic_obj, lang_obj) {
   createXMLHttpRequest();
   document.getElementById(productid_obj).disabled = true;
   document.getElementById("theLayer").style.visibility="hidden";
   var arrayPageSize = getPageSize();
   document.getElementById("TB_overlay").style.height=arrayPageSize[1];
   document.getElementById("TB_overlay").style.visibility="visible";
   w_scale();
   xmlHttp.open("get", "../../shop/addcart.php?shopid="+shopid_obj+"&productid="+productid_obj, true);
   xmlHttp.onreadystatechange = function ()
   {
  		if (xmlHttp.readyState == 4)
		{
			if (xmlHttp.status == 200)
			{
				showMe(shopid_obj, productid_obj, pathpic_obj, topic_obj, 'y', lang_obj);
			}
			else
			{
				showMe(shopid_obj, productid_obj, pathpic_obj, topic_obj, 'n', lang_obj);
			}
			document.getElementById(productid_obj).disabled = false;
			document.getElementById("theload").style.visibility="hidden";
		}
		else
		{
			document.getElementById("theload").style.visibility="visible";
		}
	};
	xmlHttp.send(null);
}
</script>


<table>
<tr>
<td height="20" align="center">
<input type="image" id="sk-tt-001" src="test/a017.gif" onClick="startcart('244298','sk-tt-001','../../shop/client/000048/koreabeauty-shop/sk-tt-001_sma.jpg','**Pre-Order** Skinfood Tea Tree Toner 160ml โทนเนอร์สำหรับผู้ที่มีปัญหาสิว (6700 won)','t');">&nbsp;
</td>
</tr>
</table>