var xmlhttp

function showItems(idSettore,idPagina,idCategoria) {

	xmlhttp=GetXmlHttpObject();
	
	if (xmlhttp==null) {
	  alert ("Your browser does not support XMLHTTP!");
	  return;
	}
	
	var url="elencoArticoli.asp";
	url=url+"?idSettore="+idSettore+"&idCategoria="+idCategoria+"&idPagina="+idPagina;
	url=url+"&sid="+Math.random();
	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);

}

function stateChanged() {

	if (xmlhttp.readyState==4) {
  	document.getElementById("elencoArticoli").innerHTML=xmlhttp.responseText;
  }
  
}

function GetXmlHttpObject() {

	if (window.XMLHttpRequest) {
	
	  // code for IE7+, Firefox, Chrome, Opera, Safari
	  return new XMLHttpRequest();
	
	}
	if (window.ActiveXObject) {
	
	  // code for IE6, IE5
	  return new ActiveXObject("Microsoft.XMLHTTP");
	
	}

return null;
	
}