var http = false;


if(navigator.appName == "Microsoft Internet Explorer") {
  http = new ActiveXObject("Microsoft.XMLHTTP");
} else {
  http = new XMLHttpRequest();
}

function make_order(order,user_id,user_pass)
{

if (confirm("Купить заказ?")) 
{
  http.abort();
  http.open("GET", "/order/order.php?itemid="+order+"&user_id="+user_id+"&user_pass="+user_pass, true);  
  http.onreadystatechange=function() {
    if(http.readyState == 4) {
      document.getElementById('order_button').innerHTML = http.responseText;
    }
  }
  http.send(null);  

}


}