var xmlHttp;

function addProduct(numProducts, idProduct, idCarrito, idClient){
	xmlHttp=GetXmlHttpObject();
	//alert("EL numero de productos es "+numProducts);
	if (xmlHttp==null){ alert ("El navegador no soporta solicitudes HTTP"); return;} 
	var url="addProduct.php";
	url=url+"?numProducts="+numProducts;
	url=url+"&idProduct="+idProduct;
	url=url+"&idCarrito="+idCarrito;
	url=url+"&idClient="+idClient;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=showOp;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function showOp(){ }

function GetXmlHttpObject(){ 
	var objXMLHttp=null;
	if (window.XMLHttpRequest){ objXMLHttp=new XMLHttpRequest();}
	else if (window.ActiveXObject){ objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");}
	return objXMLHttp;
}