function search()
{
	var v = document.getElementById('areacode').value;
	
	if(v.length == 3)
	{
		req.abort();
		document.getElementById("submit").style.display = 'none';
		document.getElementById("prompt").style.display = 'none';
		document.getElementById('updating').style.display='block';
		ajax_update('search',v);
	}
}

function qualify()
{
	var v = document.getElementById('areacode').value;
	
	if(v.length == 3)
	{
		req.abort();
		document.getElementById("submit").style.display = 'none';
		document.getElementById("prompt").style.display = 'none';
		document.getElementById('updating').style.display='block';
		ajax_update('qualify',v);
	}
}

function ajax_update(cmd,value)
{
	var url = 'availability?' + cmd + '=' + value;
	req.open("GET",url,true);
	req.onreadystatechange = response;
	req.send(null);				
}

function response()
{
	if(req.readyState == 4)
	{
		results = req.responseText;
		document.getElementById('updating').style.display = 'none';
		document.getElementById("dat").innerHTML = results;
	}
}