function check_new_replies () {
	if (! live_replies) return;
	var i = Math.round(100000 * Math.random());
	var url = '/item/new-replies/' + item_key + '/' + replies_count + '/' + i + '/' + 'newreplies';
	load_xml_document('replies', url, check_new_replies_callback);
}
var current_timeout;
var check_replies_delay = 4000;
var global_page_views = -1;
function check_new_replies_callback() {

	if (xml_reqs['replies'].readyState != 4) return;
	if (xml_reqs['replies'].status != 200) return;

	current_timeout = window.setTimeout("check_new_replies()", check_replies_delay);

	var new_replies = xml_reqs['replies'].responseText;

	i = new_replies.indexOf('|');

	if (i < 1) return;
	var new_replies_count = 1 * new_replies.substring(0, i);
	new_replies = new_replies.substring(i + 1);

	j = new_replies.indexOf('|');
	var total_viewers = 1 * new_replies.substring(0,j);
	new_replies = new_replies.substring(j + 1);

	if (global_page_views == -1) {
	    global_page_views = total_viewers;
	}
	else if (global_page_views != total_viewers) {
	    global_page_views = total_viewers;
	    refresh_viewing_history();
	}

	if (new_replies_count > replies_count) {
		replies_count = new_replies_count;
		check_replies_delay = 4000;
		window.clearTimeout(current_timeout);
		current_timeout = window.setTimeout("check_new_replies()", check_replies_delay);
	}
	else {
		if (check_replies_delay < 4060)
			check_replies_delay += 1;
		else if (check_replies_delay < 60000)
			check_replies_delay += 1000;
		else if (check_replies_delay < 120000)
			check_replies_delay += 10000;
		else
			check_replies_delay = 600000;
			
		// urchinTracker('/item/no-new-replies'); // Google analytics
		return;
	}

	var do_scroll;
	
	var vheight;
	if (window.innerHeight)
		vheight = window.innerHeight;
	else if (document.documentElement && document.documentElement.clientHeight)
		vheight = document.documentElement.clientHeight;
	else if (document.body)
		vheight = document.body.clientHeight;

	var html_element = getEl('html_tag');

	var scroll_top;
	if (self.pageYOffset) {
	        scroll_top = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop) {
	        scroll_top = document.documentElement.scrollTop;
	}
	else if (document.body) {
	        scroll_top = document.body.scrollTop;
	}

	if (html_element.scrollHeight - (scroll_top + vheight) < 4)
		do_scroll = 1;

	var new_reply_node = document.createElement("div");
	new_reply_node.innerHTML = new_replies;
	var new_rep_div = getEl('new_replies_go_here');
	if(replies_order != 'reverse')
		new_rep_div.appendChild(new_reply_node);
	else
		new_rep_div.insertBefore(new_reply_node, new_rep_div.firstChild);
	// if (getEl('body').focus) window.scrollByPages(10);
	if (do_scroll) window.scrollBy(0, 10000);

	//urchinTracker('/item/new-reply'); // Google analytics
}
function submitReply(button) {
	if (document.submit_normally) return true;
	var body = getEl('body').value;
	window.clearTimeout(current_timeout);

	var url = '/item/reply-to-message-ajax/' + item_key;
	var data = 'form::reply=1&_charset_=utf-8&reply::for=reply&no_redirect=1&reply::body=' + encodeURIComponent(body);
	if (window.XMLHttpRequest) {
		var req = new XMLHttpRequest();
		if (req) {
			req.open("POST", url, false);
			req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=utf-8');
			req.send(data);
		}
	// branch for IE/Windows ActiveX version
	} else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
		if (req) {
			req.open("POST", url, false);
			req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
			req.send(data);
		}
	}
	if (req.responseText) {
		getEl('body_errors').innerHTML = req.responseText;
	}
	else {
		getEl('body_errors').innerHTML = '';
		getEl('body').value = '';
		//getEl('donotcheck').value = '1';
		//getEl('replyform').action = getEl('xurl');
	}
	check_new_replies();
        s.pageName = '(ajax reply)';
        s.prop3 = 'Reply';
        s.t();
	return false;
}
if (live_replies) check_new_replies();