var oCheckTicket = getXmlHttpRequest();

function getXmlHttpRequest()
{
if (window.XMLHttpRequest)
  {
  return new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
else
  {
  alert("Please use an updated version of your browser for compatibility.");
  }
}

function checkTicket(sTicket) {
	//if (oCheckTicket.readyState == 4 || oCheckTicket.readyState == 0) 
	//{
	var ticket_id = document.getElementById('ticket_id');
	if(ticket_id.value != '')
	{
		oCheckTicket.open("GET","retrieve.asp"+"?t="+sTicket,true);
		oCheckTicket.onreadystatechange = updateStatus;
		oCheckTicket.send(null);	
	}
	else
	{
		tverify.value = '';
	}
	//)
}

function updateStatus() {
	if (oCheckTicket.readyState == 4) 
	{
		var tverify = document.getElementById('tverify');
		if (oCheckTicket.responseText != '')
		{	
			tverify.value = oCheckTicket.responseText;
		}
	}			
}

function validate(formCheck)
{
	if (formCheck.tverify.value != "Valid Ticket")
	{
	alert("Please enter a valid Ticket number obtained from the Addonics Technical Support Department");
	formCheck.tverify.focus();
	return false;
	}
}