var request;
var fetchid=0;
var counter=1785504439;
var latestid=0;
var interval=10000;
function runChat() {

	requestid = false;
	requestbody = false;
	send_data = false;
	if (window.XMLHttpRequest) {
    	requestid = new XMLHttpRequest();
		requestbody = new XMLHttpRequest();
		send_data = new XMLHttpRequest();
	}
	else if (window.ActiveXObject) {
    	requestid = new ActiveXObject("Microsoft.XMLHTTP");
    	requestbody = new ActiveXObject("Microsoft.XMLHTTP");
		send_data = new ActiveXObject("Microsoft.XMLHTTP");
	}
 	if ( requestid ) {
		requestid.onreadystatechange = compareId;
		checkId();
	}
	setTimeout( 'runChat()', interval );
}

function checkId() {
	counter++;
	requestid.onreadystatechange = compareId;
	requestid.open( 'GET', '/chat_return_id_xml.php?rnd='+counter, true );
	requestid.send(null);
	compareId();
}

function loadChat() {
	counter++;
	requestbody.onreadystatechange = displayChat;
	requestbody.open( 'GET', '/chat_body_xml.php?'+counter , true );
	requestbody.send(null);
	displayChat();
}

function compareId() {
	if (( requestid.readyState == 4 ) && ( requestid.status == 200 )){
		fetchid=requestid.responseText;
		if (fetchid != latestid) {
			loadChat();
			latestid=fetchid;
		}
	}
}

function displayChat() {
	if (( requestbody.readyState == 4 ) && ( requestbody.status == 200 )) {
		var chatfield = document.getElementById( 'chatfield' );
		chatfield.innerHTML = requestbody.responseText;
	}
}

function sendData() {
	counter++;
	msgauthor=escape(document.getElementById("chatmsgauthor").value);
	msgbody=escape(document.getElementById("chatmsgbody").value);
	if (msgauthor == "") {
		alert("DU MÅSTE HA NAMN I CHATTEN LEN");
		return false;
	}
	document.getElementById("chatmsgbody").value="";
	send_data.onreadystatechange = updateWhenSent;
	send_data.open( 'GET', '/chat_input.php?author='+msgauthor+'&messagebody='+msgbody , true );
	send_data.send(null);
}

function updateWhenSent() {
	if (( send_data.readyState == 4 ) && ( send_data.status == 200 )){
		loadChat();
	}
}