initCommentJavaScript();

var timeoutID;

function initCommentJavaScript() {
	document.forms['chatFormP'].elements['chatbarText'].setAttribute('autocomplete','off'); //this non standard attribute prevents firefox' autofill function to clash with this script
	checkStatus(''); //sets the initial value and state of the input comment
	checkName(); //checks the initial value of the input name
	receiveChatText('1'); //initiates the first data query
}


 function addEvent(obj, evType, fn){ 
  if (obj.addEventListener){ 
    obj.addEventListener(evType, fn, false); 
    return true; 
  } else if (obj.attachEvent){ 
    var r = obj.attachEvent("on"+evType, fn); 
    return r; 
  } else { 
    return false; 
  } 
 }

//initiates the first data query
function receiveChatText(pageno) {	
	AjaxRequest.get(
	  {
		'url':'/servlet/acomment?page=' + pageno + '&articleid=' + articleID// + '&rand='+Math.floor(Math.random() * 1000000)
		,'onSuccess':function(req){  document.getElementById("outputList").innerHTML = req.responseText;}
		,'onError':function(req){ }
	  }
	)
	if (pageno == '1') {
	     timeoutID = setTimeout("receiveChatText('1')", 30000); //executes the next data query in 30 seconds
	} else {
                     clearInterval(timeoutID);
                }

}


//stores a new comment on the server
function sendComment(theForm) {
	currentChatText = document.forms['chatFormP'].elements['chatbarText'].value;

	if (Trim(currentChatText) != '') {  


	  document.forms['chatFormP'].elements['cmd'].value = 'save';
	  document.forms['chatFormP'].action.value = '/servlet/acomment';
	  var status = AjaxRequest.submit(
		theForm
		,{
		  'onSuccess':function(req){ document.forms['chatFormP'].elements['cmd'].value = 'list'; document.getElementById("outputList").innerHTML = req.responseText; document.forms['chatFormP'].elements['chatbarText'].focus();}
		}
	  );


  	document.forms['chatFormP'].elements['chatbarText'].value = '';
	} else {
		////// ??? setTimeout('sendComment();',1000);
	}         
}


//does celver things to the input and submit
function checkStatus(focusState) {
	currentChatText = document.forms['chatFormP'].elements['chatbarText'];
	oSubmit = document.forms['chatFormP'].elements['submit'];
	if (currentChatText.value != '') { // || focusState == 'active') {
		oSubmit.disabled = false;
	} else {
		oSubmit.disabled = true;
	}
}

//autoasigns a random name to a new user
function checkName() {
	//currentName = document.forms['chatFormP'].elements['nickname'];
	currentName = getCookie ('usernamep')
	if (""+currentName == "null") {
		document.forms['chatFormP'].elements['nickname'].value = 'Posjetitelj_'+ Math.floor(Math.random() * 100000);
		var now = new Date();
		fixDate(now);
		now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);		
		setCookie ('usernamep', document.forms['chatFormP'].elements['nickname'].value, now);
	}
	else
	{
		document.forms['chatFormP'].elements['nickname'].value = currentName;
	}
}

function changeNickName()
{
  var now = new Date();
  fixDate(now);
  now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
  username = document.forms['chatFormP'].elements['nickname'].value
  setCookie("usernamep", username, now);

}


function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      "; path=/ " +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf(prefix);
  if (begin == -1)
    return null;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    "; path=/ " +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}


function Trim(trim_value){
		if(trim_value.length < 1){
			return"";
		}
		
		trim_value = RTrim(trim_value);
		trim_value = LTrim(trim_value);
	
		if(trim_value==""){
			return "";
		}
		else{
			return trim_value;
		}
	}

	function RTrim(VALUE){
		var w_space = String.fromCharCode(32);
		var v_length = VALUE.length;
		var strTemp = "";
		
		if(v_length < 0){
				return"";
			}
			var iTemp = v_length -1;
			
		while(iTemp > -1){
				if(VALUE.charAt(iTemp) == w_space){
				}
				else{
				strTemp = VALUE.substring(0,iTemp +1);
				break;
				}
				iTemp = iTemp-1;
		} 

		return strTemp;
	}

	function LTrim(VALUE){
	var w_space = String.fromCharCode(32);
	if(v_length < 1){
	return"";
	}
	var v_length = VALUE.length;
	var strTemp = "";

	var iTemp = 0;

	while(iTemp < v_length){
	if(VALUE.charAt(iTemp) == w_space){
	}
	else{
	strTemp = VALUE.substring(iTemp,v_length);
	break;
	}
	iTemp = iTemp + 1;
	} //End While
	return strTemp;
	} //End Function