var xmlHttp_o;

function productOrderMonthlySpecial(action,id_order_item){
xmlHttp_o=GetXmlHttpObject()
if (xmlHttp_o==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="product_order.php?action=add&id_products=240&quantity=1"
url=url+"&sid="+Math.random()
xmlHttp_o.onreadystatechange=stateChanged_o
xmlHttp_o.open("GET",url,true)
xmlHttp_o.send(null)
}

function stateChanged_o()
{
if (xmlHttp_o.readyState==4 || xmlHttp_o.readyState=="complete")
 {
 document.getElementById("product_order").innerHTML=xmlHttp_o.responseText
 }
}