var xmlHttp;

function cd_carrello(str) { 
	
	xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null)
 			{
 			alert ("Browser does not support HTTP Request");
 			return;
 		    }
	var url="shop_cd.php";
	url=url+"?id="+str;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function stateChanged() { 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 document.getElementById("carrello").innerHTML=xmlHttp.responseText;
	 } 
}

function GetXmlHttpObject() {
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}