function f_afegir(id,cantidad) {
	var myForm=createForm("/carreto/afegir.php", "addform");
	appendHidden(myForm, "id", id);
	appendHidden(myForm, "cantidad", cantidad);
	myForm.submit();
}
function f_veurecarro(origen) {
	var myForm=createForm("/carreto/veurecarro.php", "veurecarro");
	appendHidden(myForm, "origen", escape(origen));
	myForm.submit();
}

function createForm(action, name) {
	var myform=document.createElement("form");
    myform.style.visible="none";
	myform.action=action;
	myform.method="post";
	myform.name=name;
	myform.id=name;
	document.getElementsByTagName('body')[0].appendChild(myform);
    return myform;
}

function appendHidden(qbeForm, name, value) {
  var qbeData=document.createElement("input");
  qbeData.setAttribute("type","hidden");
  qbeData.setAttribute("name",name);
  qbeData.setAttribute("id",name);
  qbeData.setAttribute("value",value);
  qbeForm.appendChild(qbeData);
}