var ajaxtest, replyid;

function reply(topic, replyto) {
//alert(topic);
	ajaxtest = function(text) {
		document.getElementById('id' + replyto).innerHTML = text;
	}
	var url = 'ForumGetPostMessageHTML.cls?topic='+topic+'&replyto='+replyto;
	ajax(url, '', ajaxtest);
}