// Override the default trim method of String.
String.prototype.trim = function() {

  var text = this;
  var start = 0;
  var end = text.length;
  var display = "";
  for (var i = 0; i < text.length; i++) {
    display += text.charCodeAt(i) + " ";
  }
  for (var i = 0; i < text.length; i++) {
    var code = text.charCodeAt(i);

    if (code >= 33) {
      start = i;
      break;
    }
    else{
      start++;
    }
  }
  for (var i = text.length; i > start; i--) {
    var code = text.charCodeAt(i - 1);

    if (code >= 33) {
      end = i;
      break;
    }
  }

  return text.substring(start, end);
}
// variable to tell whether or not a form has been clicked
var clicked = false;

function allowClick() {
  if (! clicked) {
    clicked = true;
    return true;
  }
  return false;
}
// Sequence for open window names
var windowNameSeq = 0;

// Array of all open windows
var windows = new Array();

// Checks to see if a window exists
function windowExists(name) {

  for (var i = 0; i < windows.length; i++) {

    // IE needs a try/catch here for to avoid an access violation on windows[i].name
    // in some cases.
    try {
      if (windows[i].name == name) {
        return true;
      }
    }
    catch (exception) {
    }
  }

  return false;
}
// Returns the window object - returns nothing if not found.
function getWindow(name) {

  for (var i = 0; i < windows.length; i++) {
    try {
      if (windows[i].name == name) {
        return windows[i];
      }
    }
    catch (exception) {
    }
  }
}

function removeWindow(name) {

  for (var i = 0; i < windows.length; i++) {
    try {
      if (windows[i].name == name) {
        windows.splice(i, 1);
        return;
      }
    }
    catch (exception) {
    }
  }
}
// Open a window given its unique name, url, width and height.
function pushWin(name, url, width, height) {

  var defaultOptions = "location=yes,status=yes,toolbar=no,personalbar=no,menubar=no,directories=no,";
  defaultOptions += "scrollbars=yes,resizable=yes,";
  defaultOptions += "width=" + width + ",height=" + height;
  launchWinWithOptions(name, url, defaultOptions);
}
// Open a window given its unique name, url, width and height.
function launchWin(name, url, width, height) {

  var defaultOptions = "fullscreen=no,location=no,status=no,titlebar=no,toolbar=no,personalbar=no,menubar=no,directories=no,";
  var winleft = (screen.width - width) / 2;
  var winUp = (screen.height - height) / 2;

  defaultOptions += "scrollbars=no,resizable=no,edge:Raised,top=" + winUp + ",left=" + winleft + ",";
  defaultOptions += "width=" + width + ",height=" + height;
  launchWinWithOptions(name, url, defaultOptions);
}
// Open a window with given name, url, and options list
function launchWinWithOptions(name, url, options) {

  if (! windowExists(name)) {
    var winVar = window.open(url, name, options);
    windows[windows.length] = winVar;
    return winVar;
  }
  else{
    var theWin = getWindow(name);
    theWin.focus();
  }
}

function getTopLevelWindow() {
  var win = window;

  if (win.parent == win) {
    return win;
  }

  while (win.parent != win) {
    win = window.parent.window;
  }
  return win;
}
// Close the current window object
function closeWin(win) {
  win.close();
}
// Handle closing of the current window
function handleClose(message) {

  if (confirm(message)) {
    removeWindow(getTopLevelWindow().name);
    closeWin(getTopLevelWindow());
    return true;
  }
  else{
    return false;
  }
}
// Handle closing of the current window
function confirmCancel(message) {

  if (confirm(message)) {
    getTopLevelWindow().location.href = 'userinfo.jsp';
    return true;
  }
  else{
    return false;
  }
}

function cancelQueue(workgroup, chatID){
    getTopLevelWindow().location.href = 'userinfo.jsp?workgroup=' + workgroup +'&chatID='+chatID;
    return true;
}

function confirmCancelAndClose(message) {

  if (confirm(message)) {
    getTopLevelWindow().location.href = 'userinfo.jsp';
    getTopLevelWindow().close();
    return true;
  }
  else{
    return false;
  }
}
// Handle closing of the current window
function confirmCancel(message, workgroup, chatID) {

  if (confirm(message)) {
    getTopLevelWindow().location.href = 'userinfo.jsp?workgroup=' + workgroup +'&chatID='+chatID;
    return true;
  }
  else{
    return false;
  }
}

function closeAll() {
  removeWindow(getTopLevelWindow().name);
  closeWin(getTopLevelWindow());
}
// Opens the help window:
function launchHelpWin() {
  var win = launchWin('helpwin', 'helpwin.jsp', 550, 350);
}
// Hide a DIV
function hide(divId) {

  if (document.layers) {
    document.layers[divId].visibility = 'hide';
  }
  else if (document.all) {
    document.all[divId].style.visibility = 'hidden';
  }
  else if (document.getElementById) {
    document.getElementById(divId).style.visibility = 'hidden';
  }
}
// Show a DIV
function show(divId) {

  if (document.layers) {
    document.layers[divId].visibility = 'show';
  }
  else if (document.all) {
    document.all[divId].style.visibility = 'visible';
  }
  else if (document.getElementById) {
    document.getElementById(divId).style.visibility = 'visible';
  }
}

function getDiv(divID) {

  if (document.layers) {
    return document.layers[divID];
  }
  else if (document.all) {
    return document.all[divID];
  }
  else if (document.getElementById) {
    return document.getElementById(divID);
  }
}

function getDivByDoc(divID, doc) {

  if (doc.layers) {
    return doc.layers[divID];
  }
  else if (doc.all) {
    return doc.all[divID];
  }
  else if (doc.getElementById) {
    return doc.getElementById(divID);
  }
}
// TODO
function showTypingIndicator(flag) {

  if (flag) {

  // put the text in the div
  }
  else{

  // blank out the div
  }
}
function getTimeStr(){
			var now= new Date();
			var hour=now.getHours();
			var minute=now.getMinutes();
			var second=now.getSeconds();
			var time = "";
			if(hour/10 >= 1)
				time = time + hour;
			else 
				time = time + "0"+hour;
			
			if(minute/10 >= 1)
				time = time +":"+ minute;
			else 
				time = time + ":0"+minute;
			
			if(second/10 >=1)
			{
				time = time +":"+ second;
			}
			else 
			{
				time = time + ":0"+second;
			}
			return time;
			
}

function informConnectionClosed() {
  alert('Your support session has ended, you will be redirected to the transcript page.');
  parent.location.href = 'transcriptmain.jsp';
}

function addChatText(yakWin, time, from, text) {

  // The div to write to:
  var yakDiv = yakWin.document.getElementById('ytext');

  // This will be an announcement if there is no from passed in
  var isAnnouncement = (from == "");

  // Create a new span node in the yakDiv. Record the num of nodes right now - used later
  // to see if the node was really added:
  var numChildren = yakDiv.childNodes.length;
  var nameSpan = document.createElement("span");
  var textSpan = document.createElement("span");
  if (isAnnouncement) {
    nameSpan.setAttribute("class", "chat-announcement");
    textSpan.setAttribute("class", "chat-announcement");
  }
  else{
    textSpan.setAttribute("class", "text");
  }
  // add another span containing the username if this is not an announcement:
  var fromIsCurrentUser = false;
  if (! isAnnouncement) {

    // is the from the same as the current user?
    fromIsCurrentUser = (nickname == from);

    if (fromIsCurrentUser) {
      nameSpan.setAttribute("class", "client-name");
    }
    else{
      nameSpan.setAttribute("class", "operator-name");
    }
  }
  var chatLineDiv = document.createElement("div");
  chatLineDiv.setAttribute("class", "chat-line");

  var appendFailed = false;
  try {
    if (! isAnnouncement) {
      nameSpan.innerHTML = "["+time+"]"+from + ": ";
      chatLineDiv.appendChild(nameSpan);
    }
    textSpan.innerHTML = text;
    chatLineDiv.appendChild(textSpan);

    yakDiv.appendChild(chatLineDiv);
  }
  catch (exception) {
    appendFailed = true;
  }
  if (! appendFailed) {

    // Make sure the browser appended:
    appendFailed = (numChildren == yakDiv.childNodes.length);
  }

  if (appendFailed) {
    var inn = yakDiv.innerHTML;
    inn += "<div class=\"chat-line\">";
    if (! isAnnouncement) {
      inn += "<span class=\"";
      if (isAnnouncement) {
        inn += "chat-announcement";
      }
      else if (fromIsCurrentUser) {
        inn += "client-name";
      }
      else{
        inn += "operator-name";
      }

      inn += "\">" + from + ": </span>";

    // yakDiv.innerHTML = inn;
    }
    // var inn = yakDiv.innerHTML;

    inn += "<span class=\"";
    inn += (isAnnouncement ? "chat-announcement\">" : "chat_text\">");
    inn += text + "</span></div>";

    yakDiv.innerHTML = inn;
  }
  else{

  // yakDiv.appendChild(document.createElement("br"));
  }
}

function addChatWords(yakWin,time, from, text) {
  // The div to write to:   	
 	//var userNickname='<'+Nickname+'>'+'say:';			
	//text=userNickname+text;
	//chatwordsWin.innerText+=text;	
  // The div to write to:
	var yakDiv = yakWin.document.getElementById('ytext');

  // This will be an announcement if there is no from passed in
  var isAnnouncement = (from == "");

  // Create a new span node in the yakDiv. Record the num of nodes right now - used later
  // to see if the node was really added:
  var numChildren = yakDiv.childNodes.length;
  var nameSpan = document.createElement("span");
  var textSpan = document.createElement("span");
  if (isAnnouncement) {
    nameSpan.setAttribute("class", "chat-announcement");
    textSpan.setAttribute("class", "chat-announcement");
  }
  else{
    textSpan.setAttribute("class", "text");
  }
  // add another span containing the username if this is not an announcement:
  var fromIsCurrentUser = false;
  if (! isAnnouncement) {

    // is the from the same as the current user?
    fromIsCurrentUser = (nickname == from);

    if (fromIsCurrentUser) {
      nameSpan.setAttribute("class", "client-name");
    }
    else{
      nameSpan.setAttribute("class", "operator-name");
    }
  }
  var chatLineDiv = document.createElement("div");
  chatLineDiv.setAttribute("class", "chat-line");

  var appendFailed = false;
  try {
    if (! isAnnouncement) {
      nameSpan.innerHTML = "<span>"+time+"</span> "+from + ": ";
      chatLineDiv.appendChild(nameSpan);
    }
    textSpan.innerHTML = text;
    chatLineDiv.appendChild(textSpan);

    yakDiv.appendChild(chatLineDiv);
  }
  catch (exception) {
    appendFailed = true;
  }
  if (! appendFailed) {

    // Make sure the browser appended:
    appendFailed = (numChildren == yakDiv.childNodes.length);
  }

  if (appendFailed) {
    var inn = yakDiv.innerHTML;
    inn += "<div class=\"chat-line\">";
    if (! isAnnouncement) {
      inn += "<span class=\"";
      if (isAnnouncement) {
        inn += "chat-announcement";
      }
      else if (fromIsCurrentUser) {
        inn += "client-name";
      }
      else{
        inn += "operator-name";
      }

      inn += "\">[" +time+ "] "  + from + ": </span>";

    // yakDiv.innerHTML = inn;
    }
    // var inn = yakDiv.innerHTML;

    inn += "<span class=\"";
    inn += (isAnnouncement ? "chat-announcement\">" : "chat_text\">");
    inn += text + "</span></div>";
    yakDiv.innerHTML = inn;
  }
  else{
  //yakDiv.appendChild(document.createElement("br"));
  }
}

function scrollYakToEnd(yakWin) {
  var endDiv = yakWin.document.getElementById('enddiv');
  yakWin.scrollTo(0, endDiv.offsetTop);
}

/* utf.js - UTF-8 <=> UTF-16 convertion
*
* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
* Version: 1.0
* LastModified: Dec 25 1999
* This library is free. You can redistribute it and/or modify it.
*/

/*
* Interfaces:
* utf8 = utf16to8(utf16);
* utf16 = utf16to8(utf8);
*/

function utf16to8(str) {
var out, i, len, c;
out = "";
len = str.length;
for(i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
}

function utf8to16(str) {
var out, i, len, c;
var char2, char3;
out = "";
len = str.length;
i = 0;
while(i < len) {
c = str.charCodeAt(i++);
switch(c >> 4){
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
// 0xxxxxxx
out += str.charAt(i-1);
break;
case 12: case 13:
// 110x xxxx 10xx xxxx
char2 = str.charCodeAt(i++);
out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
break;
case 14:
// 1110 xxxx 10xx xxxx 10xx xxxx
char2 = str.charCodeAt(i++);
char3 = str.charCodeAt(i++);
out += String.fromCharCode(((c & 0x0F) << 12) |
((char2 & 0x3F) << 6) |
((char3 & 0x3F) << 0));
break;
}
}
return out;
}

function UrlEncode(str)    
{    
    return transform(str);    
}    
   
function transform(s)    
{    
    var hex=''   
    var i,j,t    
   
    j=0    
    for (i=0; i<s.length; i++)    
    {    
        t = hexfromdec( s.charCodeAt(i) );    
        if (t=='25')    
        {    
            t='';    
        }    
        hex += '%' + t;    
    }    
    return hex;    
}    
   
function hexfromdec(num) {    
        if (num > 65535) { return ("err!") }    
        first = Math.round(num/4096 - .5);    
        temp1 = num - first * 4096;    
        second = Math.round(temp1/256 -.5);    
        temp2 = temp1 - second * 256;    
        third = Math.round(temp2/16 - .5);    
        fourth = temp2 - third * 16;    
        return (""+getletter(third)+getletter(fourth));    
}    
   
function getletter(num) {    
        if (num < 10) {    
                return num;    
        }    
        else {    
            if (num == 10) { return "A" }    
            if (num == 11) { return "B" }    
            if (num == 12) { return "C" }    
            if (num == 13) { return "D" }    
            if (num == 14) { return "E" }    
            if (num == 15) { return "F" }    
        }    
}   




  function showChatButton(workgroup) {
    var d = new Date();
    var v1 = d.getSeconds() + '' + d.getDay();
    var img = "http://webchat.appl.800best.com/webchat/live?action=isAvailable&workgroup=" + workgroup;
    var gotoURL = "http://webchat.appl.800best.com/webchat/start.jsp?workgroup=" + workgroup + "&location=" + window.location.href;
    document.write(
        "<a href=\"#\" onclick=\"launchWin(\'framemain\','"+gotoURL+"',700, 465);return false;\"><img border=\"0\" src=\""+img+"\"></a>");
  }

 function displayWorkgroup(workgroup,online,offline) {
    var d = new Date();
    var v1 = d.getSeconds() + '' + d.getDay();
    var img = "http://webchat.appl.800best.com/webchat/live?action=isAvailable&workgroup=" + workgroup +"&online="+ online + "&offline="+offline;
    var gotoURL = "http://webchat.appl.800best.com/webchat/start.jsp?workgroup=" + workgroup + "&location=" + window.location.href;
    document.write(
        "<a href=\"#\" onclick=\"launchWin(\'framemain\','"+gotoURL+"',700, 465);return false;\"><img border=\"0\" src=\""+img+"\"></a>");
  }


  function showChatButtonWithAgent(workgroup, agent) {
    var d = new Date();
    var v1 = d.getSeconds() + '' + d.getDay();
    var img = "http://webchat.appl.800best.com/webchat/live?action=isAvailable&workgroup=" + workgroup;
    var gotoURL = "http://webchat.appl.800best.com/webchat/start.jsp?workgroup=" + workgroup + "&agent=" + agent + "&location=" + window.location.href;
    document.write("<a href=\"#\" onclick=\"launchWin(\'framemain\','"+gotoURL+"',700, 465);return false;\"><img border=\"0\" src=\""+img+"\"></a>");
  }

  function showButtonWithoutUI(workgroup, params){
    var d = new Date();
    var v1 = d.getSeconds() + '' + d.getDay();
    var img = "http://webchat.appl.800best.com/webchat/live?action=isAvailable&workgroup=" + workgroup;
    params = encodeURI(params); 
    var gotoURL = "http://webchat.appl.800best.com/webchat/start.jsp?workgroup=" + workgroup + "&location=" + window.location.href + "&noUI=true&"+params;
    
    document.write("<a href=\"#\" onclick=\"launchWin(\'framemain\','"+gotoURL+"',700, 465);return false;\"><img border=\"0\" src=\""+img+"\"></a>");
  }
  
  function callHelp(serverAddress, workgroup, params ){
  	params = encodeURI(params==null?"":params);
	launchWin('framemain',
	'http://'+serverAddress+'/webchat/start.jsp?workgroup='+workgroup+'&noUI=true&'+params,
    700,
    465
  );
  
  
}