function bt_up(idww)
{
	document.images[idww].src= "http://kutatokozpont.hu/design/fla/button.png";
	return true;
}
function bt_hover(idww)
{
 	document.images[idww].src = "http://kutatokozpont.hu/design/fla/button_hover.png";
	//document.getElementsById(idww+'_txt').style.color='red';
 	return true;
}

var xmlHttp

function get_articles(querystring)
{
	document.getElementById("article").innerHTML = "<img src=\"http://kutatokozpont.hu/design/fla/wait.gif\">"; 
	xmlHttp = GetXmlHttpObject();
	var url = "http://kutatokozpont.hu/get_articles.php" + querystring;
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);    
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4)
	{ 		
		//alert(xmlHttp.responseText);
		document.getElementById("article").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)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	return xmlHttp;
}