function imc() {
	var req = newXMLHttpRequest();
  var callbackHandler = getReadyStateHandler(req, imcUpdate);
  req.onreadystatechange = callbackHandler;

 	req.open("GET", "/ajax/imc", true);
 	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 	req.send(null);
}

function imcUpdate(testXML) {
	var test = testXML.getElementsByTagName("data");
  var l = test.length;
  var div = document.getElementById('imc_out');
  div.innerHtml = '';
  var str = '';

  for(var i=0; i<l; i++) {
    var res = test[i].firstChild.data;
    str = str + res;
  }
  div.innerHTML = str;
}

/* ----- reviews block ------- */

function teaser(){
	var req = newXMLHttpRequest();
  var callbackHandler = getReadyStateHandler(req, teaserUpdate);
  req.onreadystatechange = callbackHandler;

  /* var a = document.getElementById("rated").value; */
  var b = document.sform.typ.options[document.sform.typ.selectedIndex].text;
  var c = document.sform.state.options[document.sform.state.selectedIndex].text;
  var d = document.getElementById('q').value;

 	var arg = "typ="+b+"&state="+c+"&q="+d;
 	req.open("GET", "/ajax/teaser?"+arg, true);
 	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 	req.send(null);
}

function teaserUpdate(testXML) {
	var test = testXML.getElementsByTagName("data");
  var l = test.length;
  var div = document.getElementById('teaser_out');
  div.innerHtml = '';
  var str = '';

  for(var i=0; i<l; i++) {
    var res = test[i].firstChild.data;
    str = str + res;
  }
  div.innerHTML = str;
}

function lookup(){
	var req = newXMLHttpRequest();
  var callbackHandler = getReadyStateHandler(req, butUpdate);
  req.onreadystatechange = callbackHandler;

  var handle = document.getElementById("handle");
  var v = handle.value;
 	req.open("GET", "/ajax/ishandleok?handle="+v, true);
 	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 	req.send("");
}

/* ----- ticker processing ------- */

function ticker_toggle(id, con, coff) {
  var handle = document.getElementById(id);
  var togval = document.getElementById("t"+id);

  if (togval.value == 1) {
    handle.style.backgroundColor = coff;
    togval.value = 0;
  } else {
    handle.style.backgroundColor = con;
    togval.value = 1;
  }
}

function tick(delta) {
	var req = newXMLHttpRequest();
  var callbackHandler = getReadyStateHandler(req, tickUpdate);
  req.onreadystatechange = callbackHandler;

  var handle = document.getElementById("id");
  var v = parseInt(handle.value);
  handle.value = v;

  var cats = "";
  for(var i=1; i<3; i++) {
    var h = document.getElementById("t"+i);
    if (h.value == 1) {
      cats = cats+","+i;
    }
  }

 	req.open("GET", "/ajax/ticker?id="+v+"&delta="+delta+"&cats="+cats, true);
 	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 	req.send("");
}

function tickUpdate(testXML) {
	var test = testXML.getElementsByTagName("ticker")[0];
	var res = test.getAttribute("html");
	var id = test.getAttribute("id");
  var handle = document.getElementById("id");
  handle.value = parseInt(id);

  var s = document.getElementById('ticker_html');
  s.innerHTML = res;
}
/* ----- end ticker processing ------- */

function butUpdate(testXML) {
	var test = testXML.getElementsByTagName("handle")[0];
	var res = test.getAttribute("res");
  var but = document.getElementById('isfree');
  but.value = res;
}

function kicksubmit(){
  document.getElementById('uploadbtn').disabled=true;
  document.myform.submit();
	self.setTimeout("talktoServer()", 1000);
}

function talktoServer(){
	var req = newXMLHttpRequest();
	//register the callback handler function
  	var callbackHandler = getReadyStateHandler(req, updateMsgOnBrowser);
  	req.onreadystatechange = callbackHandler;
  	var testmsg = document.getElementById("tag");
  	var msg_value = testmsg.value;
  	req.open("GET", "/r0/upload?xml=1&tag="+msg_value, true);
  	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  	//get the value from the text input element and send it to server
  	req.send("tag="+msg_value);
}

// This is the callback functions that gets called
// for the response from the server with the XML data

var lastPing = 0;

function updateMsgOnBrowser(testXML) {
	var test = testXML.getElementsByTagName("test")[0];
	var message = testXML.getElementsByTagName("message")[0];
	var nof = testXML.getElementsByTagName("nof")[0];
  var nofv = nof.firstChild.nodeValue;
  var x;

	var timestamp = test.getAttribute("timestamp");
	if (timestamp > lastPing) {
		lastPing = timestamp;

    for (x=1; x<=4; x++) {
      var e = testXML.getElementsByTagName("fn"+x)[0];
      var v = e.getAttribute("name");
      var f = document.getElementById("fn"+x);
      var chk = f.innerHTML;
      if (chk != v) {
        f.innerHTML = v;
      }
    }

    var pcf = testXML.getElementsByTagName("pc")[0];
    var msf = testXML.getElementsByTagName("ms")[0];
    if (pcf != null && msf != null) {
      var pc = pcf.firstChild.nodeValue;
      var ms = msf.firstChild.nodeValue;

      var message_value = message.firstChild.nodeValue;

      var msg_display = document.getElementById("msg_display");
      msg_display.innerHTML = message_value;
      if (pc == 100) {
        document.getElementById('uploadbtn').disabled=false;
        var sf = document.getElementById("subform");
        if (sf != null) {
          sf.submit();
        }
        var pf = document.getElementById("pform");
        if (pf != null) {
          msg_display.innerHTML = "Previewing. Please wait..";
          pf.submit();
        }
      } else {
        self.setTimeout("talktoServer()", ms);
      }
    } else {
      self.setTimeout("talktoServer()", 5000);
    }
	}
}


//the following two functions are helper infrastructure to 
//craete a XMLHTTPRequest and register a listner callback function

function newXMLHttpRequest() {
	var xmlreq = false;
	if (window.XMLHttpRequest) {
		xmlreq = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
    		// Try ActiveX
		try { 
			xmlreq = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) { 
			// first method failed 
			try {
				xmlreq = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) {
				 // both methods failed 
			} 
		}
 	}
   	return xmlreq;
} 

function getReadyStateHandler(req, responseXmlHandler) {
	return function () {
	if (req.readyState == 4) {
		if (req.status == 200) {
        		responseXmlHandler(req.responseXML);
		} else {
			//var hellomsg = document.getElementById("hellomsg");
			//hellomsg.innerHTML = "ERROR: "+ req.status;
      		}
    	}
 	}
}