var URLsuffix = '/process/ajaxreq.jsp';
//var URLsuffix = '/FabkovaChata/process/ajaxreq.jsp';

var ajaxHttp = getAjaxLibrary();

function getAjaxLibrary() {
	var activexmodes = [ "Msxml2.XMLHTTP", "Microsoft.XMLHTTP" ] // activeX
																	// versions
																	// to check
																	// for in IE
	if (window.ActiveXObject) { // Test for support for ActiveXObject in IE
								// first (as XMLHttpRequest in IE7 is broken)
		for ( var i = 0; i < activexmodes.length; i++) {
			try {
				return new ActiveXObject(activexmodes[i])
			} catch (e) {
				// suppress error
			}
		}
	} else if (window.XMLHttpRequest) // if Mozilla, Safari etc
		return new XMLHttpRequest()
	else
		return false
}

/*******************************************************************************
 * F U N C T I O N S
 ******************************************************************************/

function getHost() {
	var url = ""+window.location;
	var prot = url.split('//')[0];
	var urlparts = url.split('//')[1].split('/');
	return urlparts[0];
}

function getProt() {
	var url = ""+window.location;
	return url.split('//')[0];
}

function ajaxSendRequest(data, onReadyStateChange)
{
    var URL = getProt()+'//'+getHost()+URLsuffix;
    //if (ajaxHttp.overrideMimeType)
    	//ajaxHttp.overrideMimeType('text/xml')
    ajaxHttp.open("POST", URL , true);
    ajaxHttp.onreadystatechange = onReadyStateChange;
    ajaxHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    ajaxHttp.send(data);
}
function ajaxResponseReady()
{
    if (ajaxHttp.readyState == 4) {
        /* received */
        if (ajaxHttp.status == 200 || window.location.href.indexOf("http")==-1) {
            /* response is ok */
            return true;
        } else {
            return false;
        }
    }
    return false;
}

function ajaxGetXmlResponse() {
	  if (ajaxHttp.responseXML && ajaxHttp.responseXML.parseError && (ajaxHttp.responseXML.parseError.errorCode !=0)) {
		  ajaxGetXmlError(true);
	    return null;
	  } else {
	    return ajaxHttp.responseXML;
	  }
	}

function ajaxGetXmlError(withalert) {
	  if (ajaxHttp.responseXML.parseError.errorCode !=0 ) {
	     line = ajaxHttp.responseXML.parseError.line;
	     pos = ajaxHttp.responseXML.parseError.linepos;
	     error = ajaxHttp.responseXML.parseError.reason;
	     error = error + "Contact the support ! and send the following informations: error is line " + line + " position " + pos;
	     error = error + " >>" + ajaxHttp.responseXML.parseError.srcText.substring(pos);
	         error = error + "GLOBAL:" + ajaxHttp.responseText;
	     if (withalert)
	       alert(error);
	     return error;
	   } else {
	     return "";
	   }
	}

function convertLinks(text)
{
	var myArray = text.split(" ");

	for (var i = 0 ; i < myArray.length ; i++) {
		var part = myArray[i];
		if (part.indexOf("http://")==0) {
			text = text.replace(part, '<a href="' + part + '">' + part + '</a>');
		}
	}
	return text;
}


/*******************************************************************************
 * ajax call functions
 */
function AX_voting(id, yes_no)
{
    var data = 'ajaxMethod=ajaxVoting_'+yes_no +'&universalId='+id;
    ajaxSendRequest(data, AX_votingResponse);
}

function AX_chat_voting(id, yes_no)
{
    var data = 'ajaxMethod=ajaxChatVoting_'+yes_no +'&universalId='+id;
    ajaxSendRequest(data, AX_chatVotingResponse);
}

function AX_sendChatMessage(text, chatid)
{
	var data = 'ajaxMethod=chat_text_' + text +'&universalId='+chatid;
    ajaxSendRequest(data, AX_asynchUpdateResponse);
}

function AX_asynchUpdate()
{
	var data = 'ajaxMethod=asynchUpdate';
    ajaxSendRequest(data, AX_asynchUpdateResponse);
}

function AX_asynchUpdateChat()
{
	var data = 'ajaxMethod=asynchUpdateChat';
    ajaxSendRequest(data, AX_asynchUpdateResponse);
}

function AX_firstUpdateChat()
{
	var data = 'ajaxMethod=firstUpdateChat';
    ajaxSendRequest(data, AX_asynchUpdateResponse);
}
/*******************************************************************************
 * response functions
 */
function AX_votingResponse()
{
    if (ajaxResponseReady()) {
        if (ajaxHttp.responseText.indexOf('invalid') == -1) {
            var xmlDocument = ajaxGetXmlResponse();
            var id = xmlDocument.getElementsByTagName("id")[0].firstChild.data;
            var yes = xmlDocument.getElementsByTagName("yes")[0].firstChild.data;
            var no = xmlDocument.getElementsByTagName("no")[0].firstChild.data;
            document.getElementById('yes' + id).innerHTML = yes;
            document.getElementById('no' + id).innerHTML = no;
        }
    }
}

function AX_chatVotingResponse()
{
    if (ajaxResponseReady()) {
        if (ajaxHttp.responseText.indexOf('invalid') == -1) {
            var xmlDocument = ajaxGetXmlResponse();
            var id = xmlDocument.getElementsByTagName("id")[0].firstChild.data;
            var thumbup = xmlDocument.getElementsByTagName("thumbup")[0].firstChild;
            var thumbdown = xmlDocument.getElementsByTagName("thumbdown")[0].firstChild;

        	var yesVotes = 0;
        	var noVotes = 0;
        	var yesNames = '';
        	var noNames = '';

        	if (thumbup!==null && thumbup.data!==null) {
        		yesNames = thumbup.data;
        		yesVotes = yesNames.split(',').length;
        	}

        	if (thumbdown!==null && thumbdown.data!==null) {
        		noNames = thumbdown.data;
        		noVotes = noNames.split(',').length;
        	}

            document.getElementById('yes' + id).innerHTML = yesVotes;
            document.getElementById('no' + id).innerHTML = noVotes;
            document.getElementById('yes' + id).title = yesNames;
            document.getElementById('no' + id).title = noNames;
        }
    }
}

function AX_asynchUpdateResponse()
{
    if (ajaxResponseReady()) {
        if (ajaxHttp.responseText.indexOf('invalid') == -1) {
            var xmlDocument = ajaxGetXmlResponse();

            var userNames = xmlDocument.getElementsByTagName("userName");
            var userIds = xmlDocument.getElementsByTagName("userId");
            var inactives = xmlDocument.getElementsByTagName("inactive");
            var inChat = xmlDocument.getElementsByTagName("inChat");

            var resStr = "";

            for (var i=0; i <= (userNames.length-1); i++)
        	{
            	if (inChat[i].firstChild.data=='true')
            		resStr = resStr + "<a href='newpm.jsp?uid=" + userIds[i].firstChild.data + "'>" + userNames[i].firstChild.data + " [Chat] (" + inactives[i].firstChild.data + ")</a>, ";
            	else
            		resStr = resStr + "<a href='newpm.jsp?uid=" + userIds[i].firstChild.data + "'>" + userNames[i].firstChild.data + " (" + inactives[i].firstChild.data + ")</a>, ";
        	}

            document.getElementById('userCount').innerHTML = ""+userNames.length;
            document.getElementById('userList').innerHTML = resStr.substring(0, resStr.length-2);

            var fromNames = xmlDocument.getElementsByTagName("fromName");
            var chatIds = xmlDocument.getElementsByTagName("chatId");
            var newMess = xmlDocument.getElementsByTagName("newMess");
            var times = xmlDocument.getElementsByTagName("time");
            var texts = xmlDocument.getElementsByTagName("text");
            var thumbup = xmlDocument.getElementsByTagName("thumbup");
            var thumbdown = xmlDocument.getElementsByTagName("thumbdown");

            var resStr = "";

            var chatNode = document.getElementById('main_chat');
            var newdiv = '';

            for (var i=0; i <= (chatIds.length-1); i++)
        	{
            	var divIdName = 'chatId_'+chatIds[i].firstChild.data;
            	var color = 'color:#FF0000';
            	if (newMess[i].firstChild.data=='1')
            		color = 'color:#FF0000';
            	else if (newMess[i].firstChild.data=='2')
            		color = 'color:#0000FF';
            	else
            		color = 'color:#000000';
            	/*
            	var yesVotes = 0;
            	var noVotes = 0;
            	var yesNames = ' ';
            	var noNames = ' ';

            	if (thumbup[i].firstChild!==null) {
            		yesNames = thumbup[i].firstChild.data;
            		yesVotes = yesNames.split(',').length;
            	}

            	if (thumbdown[i].firstChild!==null) {
            		noNames = thumbdown[i].firstChild.data;
            		noVotes = noNames.split(',').length;
            	}

                var chatVotingLine = ' <span class=\"voting-buttons\"><a title=\"'+yesNames+'\" id=\"yes'+chatIds[i].firstChild.data+'\" class=\"voting_yes\" href="javascript:AX_chat_voting('+chatIds[i].firstChild.data+',\'yes\')">'+yesVotes+'</a><a title=\"'+noNames+'\" id=\"no'+chatIds[i].firstChild.data+'\" class=\"voting_no\" href=\"javascript:AX_chat_voting('+chatIds[i].firstChild.data+',\'no\')">'+noVotes+'</a></span>';
            	*/
            	var chatVotingLine = '';
                newdiv += '<div id=\"'+divIdName+'\" style=\"'+color+'\">['+times[i].firstChild.data+chatVotingLine+'] - '+fromNames[i].firstChild.data+': '+convertLinks(texts[i].firstChild.data)+'</div>';
        	}

            if (chatIds.length>0)
            	chatNode.innerHTML = newdiv;

            var newTitle = '';
            var fids = xmlDocument.getElementsByTagName("forumId");
            var messCounts = xmlDocument.getElementsByTagName("messageCount");
        	if (messCounts.length>0 || document.title.indexOf('(1+)')>-1) {
        		newTitle += '(1+)';
        	}

        	var newChatMessages = xmlDocument.getElementsByTagName("newChatMessages");
        	if (newChatMessages.length>0 || document.title.indexOf('(CHAT+)')>-1) {
        		newTitle += '(CHAT+)';
        	}

            var newPMs = xmlDocument.getElementsByTagName("newPMCount");
            if (newPMs.length>0) {
           		document.getElementById('newPM').innerHTML = "<STRONG><a href='private.jsp'><img src='images/pm.gif'/> You have unread Private Message</STRONG>";
           		if (document.title.indexOf('(PM+)')<0) {
           			newTitle += '(PM+)';
           		}
        	}

        	if (newTitle.length!='') {
        		document.title = newTitle + " kAmMa's Forum";
        	}

            var resStr = '';
            for (var i=0; i <= (fids.length-1); i++)
        	{
            	resStr = "   "+messCounts[i].firstChild.data+" new message(s)";
            	if (document.getElementById('newCount'+fids[i].firstChild.data)!=null) {
            		document.getElementById('newCount'+fids[i].firstChild.data).innerHTML = resStr;
            	}
        	}

        	var playNotification = xmlDocument.getElementsByTagName("playNotification");
    		if (playNotification.length>0 && playNotification[0].firstChild.data=='1' && document.getElementById('soundon')!=null) {
    			var embed=document.createElement('object');
    			  embed.setAttribute('type','audio/wav');
    			  embed.setAttribute('data', 'notif.wav');
    			  embed.setAttribute('autostart', true);
    			  document.getElementsByTagName('body')[0].appendChild(embed);
    		}
        }
    }
}
/*
 * END of response functions
 */