var xmlhttp;

function showScore(str)
{
	xmlhttp = GetXmlHttpObject();
	if (xmlhttp == null)
	{		
	    alert ("Browser does not support HTTP Request");
		return;
	}
	var url = "oop.php";
	url = url + "?q=" + str;
	url = url + "&sid=" + Math.random();
	xmlhttp.onreadystatechange = stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);
}

function stateChanged()
{
	if (xmlhttp.readyState > 0 && xmlhttp.readyState < 4)
	{
		document.getElementById("loading").style.visibility = "visible";	
	}
	if (xmlhttp.readyState == 4)
	{		
		document.getElementById("loading").style.visibility = "hidden";
		document.getElementById("score").innerHTML = xmlhttp.responseText;
	}
}

function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
  	{
  		// code for IE7+, Firefox, Chrome, Opera, Safari
  		return new XMLHttpRequest();
  	}
	if (window.ActiveXObject)
  	{
	  	// code for IE6, IE5
  		return new ActiveXObject("Microsoft.XMLHTTP");
  	}
	return null;
}