function alertmsg() { alert ("Your browser does not support AJAX!"); return; }

function getItems(searchBy, type)
{ 	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  { alertmsg(); } 

	var url="items.asp?item="+searchBy+"&type="+type;
	xmlHttp.onreadystatechange=DisplayItems;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function DisplayItems() 
{ if (xmlHttp.readyState==4)
	{ document.getElementById("divChoose").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;
}