function math()
{
	var show_msg = document.getElementById('math');
	show_msg.innerHTML = '<img width="50" height="18" src="/bbs/logging.php?frommyurl=1&mymathshow=1&random='+Math.random()+'" border="0" align="absmiddle"/>';
	return;
		var ajax = initAjax();
		ajax.open('GET','/bbs/logging.php?frommyurl=1&mymathshow=1&random='+Math.random(),true);
		ajax.onreadystatechange = function()
		{
			if(ajax.readyState == 4 && ajax.status == 200)
			{
				show_msg.innerHTML = ajax.responseText;
			}
		}
		ajax.send(null);
}