var xmlHttp

function check(val)
{ 
 xmlHttp=GetXmlHttpObject();
 if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
 var url="answer.jsp";
url=url+"?gameid="+val;

xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged() 
{
	if (xmlHttp.readyState==4)
	{ 
	document.getElementById("txtHint").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;
}