var xmlHttp;


function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
 		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;
}