var param ='listat';
var ajax = new Ajax();
function onXMLResponse()
{
	if(ajax.checkReadyState(param, 'loading...', 'loading...', 'loading...') == "OK")
	{
		var response = ajax.request.responseXML.documentElement;
		var header = response.getElementsByTagName('header')[0].firstChild.data;
		var copy = response.getElementsByTagName('copy')[0].firstChild.data;
		document.getElementById(param).innerHTML = "<b>" + header + "</b><br/>" + copy;
	}
}

function onXHTMLResponse()
{
	if(ajax.checkReadyState(param, 'loading...', 'loading...', 'loading...') == "OK")
	{
		document.getElementById(param).innerHTML = ajax.request.responseText;
	}
}

function onJSONResponse()
{
	if(ajax.checkReadyState(param, 'loading...', 'loading...', 'loading...') == "OK")
	{
		eval("var response = ("+ajax.request.responseText+")");
		document.getElementById(param).innerHTML = "<b>" + response.header + "</b><br/>"
												   + response.copy;
	}

}