/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+	update recent search
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
function availability() {
	var un = $j("#username").val();
	var url = '/ajax/check_availability?un='+un;
	$j("#availability").html("Checking Availability...");
	xmlHttp = GetXmlHttpObject();
	if (xmlHttp == null) { noAjax(); return; }
	xmlHttp.onreadystatechange = unChanged;
	xmlHttp.open('GET',url,true);
	xmlHttp.send(null);
	return;
}
function unChanged() {
	if (ajaxComplete()) {
		var response = xmlHttp.responseText;
		$j("#availability").html(response);
	}
	return;
}

function resetavail() {
	$j("#availability").html('<a href="javascript:availability()">check availability</a>');
}