var http_request = false;
function CreateXMLHttpRequest()
{
    http_request = false;
    if(window.ActiveXObject)
    {
       try  // IE
       {
	   http_request = new ActiveXObject("Msxml2.XMLHTTP");
       }
       catch (e)
       {
	   try
	   {
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	   }
	   catch (e) {}
       }
    }
    else if(window.XMLHttpRequest)
    {
	   // Mozilla, Safari,...
	   http_request = new XMLHttpRequest();
	   if (http_request.overrideMimeType)
	   {
 	       http_request.overrideMimeType('text/xml');
	   }
    }
    if (!http_request)
    {
 	   alert("Cannot create an XMLHTTP instance");
	   return false;
    }
}
function AjaxLoginBoxRequest(url)
{
    CreateXMLHttpRequest();
    http_request.onreadystatechange = LoginBoxAlertContents;
    http_request.open('GET', url, true);
    http_request.send(null);
}

function AjaxLoginSubmitRequest(url)
{
    CreateXMLHttpRequest();
    http_request.onreadystatechange = AlertLoginSubmitContents;
    http_request.open('GET', url, true);
    http_request.send(null);
}

function AlertLoginSubmitContents()
{
    if (http_request.readyState == 4)
    {
	   if(http_request.status == 200)
	   {
	      results = http_request.responseText.split('|');
	      if (results[0] == 'true')
	      {
		    showSuccessInfo();
	      }
	      else
	      {
		    alert(results[1]);
	      }
	   }
       else
	   {
	      alert('The Nerwork has error');
	   }
   }
}