var xmlHttp

function checkCard(str){ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)  {
  alert ("Your browser does not support AJAX!");
  return;
} 
var url="checkCardExpiry_action.jsp";
url=url+"?mfgNo="+str;
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged() { 
	if (xmlHttp.readyState<=3){ 
		document.getElementById("result_msg").innerHTML="<table border=\"0\" cellspacing=\"0\" cellpadding=\"5\" style=\"border:#CCCCCC 1px solid\"> <tr> <td align=\"center\" valign=\"middle\"><img src=\"images/icon_loading.gif\" align=\"absmiddle\"><br> Searching</td> </tr> </table>";
	} else if (xmlHttp.readyState==4){ 
		document.getElementById("result_msg").innerHTML=xmlHttp.responseText;
		if (!xmlHttp.responseText.match("Error:")){
			document.getElementById("mfgNo").value="";
		} 
	}
}

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;
}