var cs = new Array('#','!','0','@','*','$','^','/','x','-')
sc = new Array()
for (i=0;i<10;i++) sc[cs[i]]=i
var texts = new Array("логин","пароль","тут могут быть номера телефонов/icq, адреса почты и т.д.")
var texts = new Array("логин","пароль","тут могут быть номера телефонов/icq, адреса почты и т.д.","тут текст сообщения...","здесь текст новости...","тут описание альбома...","тут описание...","тут описание события...")
var xoffset = 0
var yoffset = -1
var quantificator = 8
var msgs = 0 
var startup = true
var check_messages = false 
var divx = 0
var divy = 0
var divmove = false
var ed = false
var obj
var msgDivs = new Array()
var lmsg = 0
var lastHash = ""

function el(name) {
 return document.getElementById(name)
}

function hide_it(id) {
 el(id).style.display = 'none'
}

function show_it(id) { 
 el(id).style.display = 'block'
}

function cursor_it(id) {
 el(id).style.left = cx
 el(id).style.top = cy
 show_it(id)
}

function chcursor(id) {
 el(id).style.left = cx
 el(id).style.top = cy
 chstat(id)
}

function chstat(id) {
 if (el(id).style.display == 'none') {
   show_it(id)
 } 
 else
 {
   hide_it(id)
 }
}

function getHeight() {
  if (typeof(window.innerHeight)=='number') {
    return window.innerHeight;
  } else if (document.documentElement&&document.documentElement.clientHeight) {
    return document.documentElement.clientHeight;
  } else if (document.body&&document.body.clientHeight) {
    return document.body.clientHeight;
  }
  return 600
}

function getWidth() {
  if (typeof(window.innerWidth)=='number') {
    return window.innerWidth;
  } else if (document.documentElement&&document.documentElement.clientWidth) {
    return document.documentElement.clientWidth;
  } else if (document.body&&document.body.clientWidth) {
    return document.body.clientWidth;
  }
  return 800
}

function getObjProp(obj,p) {
 if (document.defaultView && document.defaultView.getComputedStyle) {
  return document.defaultView.getComputedStyle(obj, "").getPropertyValue(p).replace(/[^0-9]/g,'')
 }
 if (elem.currentStyle) return object.currentStyle[p]
}

function getObjWidth(obj) {
 if (obj.style.pixelWidth) return obj.style.pixelWidth
 else return getObjProp(obj,"width").replace(/[^0-9]/g,"")
}

function getObjHeight(obj) {
 if (obj.style.pixelHeight) return obj.style.pixelHeight
 else return 40// getObjProp(obj,"height").replace(/[^0-9]/g,"")
}

function getObjLeft(obj) {
 if (obj.style.pixelLeft) return obj.style.pixelLeft
 else return getObjProp(obj,"left").replace(/[^0-9]/g,"")
}

function getObjTop(obj) {
 if (obj.style.pixelTop) return obj.style.pixelTop
 else return getObjProp(obj,"top").replace(/[^0-9]/g,"")
}

function DivMouseDown(e) {
  divx = -1
  obj = e
  divmove = true
}

function DivMouseUp() {
  divmove = false
}

function DivMouseMove(x,y) {
  if (divx == -1) {
    divx = x - getObjLeft(obj)
    divy = y - getObjTop(obj)
  }
  obj.style.left = x - divx
  obj.style.top = y - divy
}

function move_hint(e) {
  if (!e) e = window.event;
  if (e.pageX || e.pageY) {
    cx = e.pageX;
    cy = e.pageY;
  } else if (e.clientX || e.clientY) {
    cx = e.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
    cy = e.clientY + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop;
  }  
  if (divmove) DivMouseMove(cx,cy)
  el('hint').style.left = cx+xoffset
  el('hint').style.top = cy+yoffset
}

function set_hint(caption,pos) {
  if (caption.indexOf('<br>') > 0) {
    strings = caption.split('<br>')
    width = strings[0].length
    for (i = 0; i < strings.length ; i++ ) {
      if (width < strings[i].length) width = strings[i].length
    }
  } else width = caption.length
  if (width > 40) width/=2
  width = width*quantificator
  el('hint').innerHTML = caption
  el('hint').style.width = width
  if (pos == 1) xoffset = -width-10
  else xoffset = 10
  el('hint').style.left = cx+xoffset
  show_it('hint')
}

function clearm() {
 document.postform.message.value = ""
}

function setsmile(smile) {
 obj = document.postform.message
 if (!ed) obj.value = ""
 obj.focus();
 if (document.selection) {
  var s = document.selection.createRange(); 
  s.text = smile
//  s.select();
 } else if (typeof(obj.selectionStart)=="number") {
  var start = obj.selectionStart;
  var end = obj.selectionEnd;
  obj.value = obj.value.substr(0,start)+smile+obj.value.substr(end);
  obj.setSelectionRange(end,end);
 } else SetQTag(st,fn,pr)
}

function check_msg() {
  if (check_messages) {
    if (!startup) ajax("off")
    check_messages = false
    el("loadMsg").style.display = "none"
    el("aText").innerHTML = "включить AJAX"
  } else {
    if (!startup) ajax("on")
    check_messages = true
    if (msgs == 0) el("loadMsg").style.display = "block"
    el("aText").innerHTML = "выключить AJAX"
    check_msgs()
  }
}

function Centrate(obj) {
  obj.style.left = parseInt((getWidth() - getObjWidth(obj))/2)
  obj.style.top = parseInt((getHeight() - getObjHeight(obj))/2)
  if (obj.style.top > 60) obj.style.top -= 20
}

function ShowHWindow() {
  if (el("hwindow").style.display == "none") {
   Centrate(el("hwindow"))
   show_it("hwindow")
  }
}

function ajax_err(e) {
 el("err_msg").innerHTML = e
 show_it("errmsg")
}

function nms(c) {
 msgs = c
 if (c > 0) {
  el("loadMsg").style.display = "none"
  el("hasMsg").style.display = "block"
  el("newMsg").innerHTML = c
  el("nmmi").innerHTML = "("+c+")"
 } else {
  if (check_messages) el("loadMsg").style.display = "block"
  el("hasMsg").style.display = "none"
  el("nmmi").innerHTML = ""
 }
 if (check_messages) setTimeout("check_msgs()",15000)
}

function ams(m) {
 el("hwbody").innerHTML = m
 ShowHWindow("hwindow")
 if (check_messages) check_msgs()
}

function pload(id,m) {
 el("pmsg_" + id).innerHTML = m
 el("nmsg_" + id).innerHTML = "&nbsp;"
 msgDivs[id] = 1
}

function lms(m) {
 pload(lmsg,m)
 rid = parseInt(lmsg)
 if (el("nmsg_" + parseInt(lmsg)) != null) pload(rid,m)
 rid = "0" + rid
 if ((el("pmsg_" + rid) != null)&&(rid != lmsg)) pload(rid,m)
 chstat("msg_" + lmsg)
 if (check_messages) check_msgs()
}

function nus(u) {
 if (u > 0) el("new_user").innerHTML = " (" + u + ")"
 else el("new_user").innerHTML = ""
}

function ner(e) {
 if (e > 0) el("new_errs").innerHTML = " (" + e + ")"
 else el("new_errs").innerHTML = ""
}

function ajax_event(response) {
  if (response.indexOf('<block>') < 0) {
   strings = new Array();
   strings[0] = response
  } else strings = response.split('<block>')
  for (s in strings) {
   l = strings[s]
   tag = l.substr(0,1)
   block = l.substr(1,l.length)
   if (block != 'fail') {
    switch (tag) {
     case 'n': nms(block)
      break
     case 'l': ams(block)
      break
     case 'm': lms(block)
      break
     case 'u': nus(block)
      break
     case 'e': ner(block)
      break
    }
   } else ajax_err("загрузка не удалась") 
   HideLoader()
  }
}

function ajax(request) {
 var xmlHttp;
 try
 {
  xmlHttp=new XMLHttpRequest();
 }
 catch (e)
 {
  try
  {
   xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
  catch (e)
  {
   try
   {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
   }
   catch (e)
   {
    return false;
   }
  }
 }
 xmlHttp.onreadystatechange=function()
 {
  if(xmlHttp.readyState==4)
  {
   if ((xmlHttp.responseText.indexOf('<ajax>') == 0)&&(xmlHttp.responseText.indexOf('</ajax>') == xmlHttp.responseText.length-7)) {
    response = xmlHttp.responseText.substr(6,xmlHttp.responseText.length-13)
    ajax_event(response)
   }
  }
 }
 xmlHttp.open("POST","ajax.php?do=ajax&act="+request,true);
 xmlHttp.send(null);
 return true;
}

function check_msgs() {
  if (!ajax("check")) check_messages = false
}

function ShowLoader() {
  el("screen_blend").style.width = Math.max(document.documentElement.scrollWidth,document.body.scrollWidth)
  el("screen_blend").style.height = Math.max(document.documentElement.scrollHeight,document.body.scrollHeight)
  show_it("screen_blend")
  Centrate(el("ajax_load"))
  show_it("ajax_load")
}

function HideLoader() {
  hide_it("ajax_load")
  hide_it("screen_blend")
}

function ajax_new() {
  if (ajax("loadnew")) ShowLoader()
}

function ajax_del(id) {
  if (ajax("loadnew&del="+id)) ShowLoader()
}

function ShowMsg(id) {
  hide_it("errmsg")
  if (msgDivs[id] == 1) chstat("msg_" + id)
  else {
    ShowLoader()
    lmsg = id
    if (!ajax("private&target="+id)) HideLoader()
  }
}

function SetQTag(st,fn,pr) {
  text = prompt("ИСТ УГТУ",pr)
  if (text != null) setsmile(st+text+fn)
}

function SetTag(st,fn,pr)
{
 obj = document.postform.message
 obj.focus();
 if (document.selection) {
  var s = document.selection.createRange(); 
  if (s.text.length > 0) {
     s.text = st + s.text + fn
//     s.select();
  } else SetQTag(st,fn,pr)
 } else if (typeof(obj.selectionStart)=="number") {
  if (obj.selectionStart!=obj.selectionEnd) {
     var start = obj.selectionStart;
     var end = obj.selectionEnd;
     var rs = st+obj.value.substr(start,end-start)+fn
     obj.value = obj.value.substr(0,start)+rs+obj.value.substr(end);
     obj.setSelectionRange(end,end);
   } else SetQTag(st,fn,pr)
 } else SetQTag(st,fn,pr)
}

function link()
{
  addr = prompt("ИСТ УГТУ","адрес")
  if (addr != null) SetTag("[link="+addr+"]", "[/link]", "текст на ссылке")
}

function SetQuot(w,q) {
  setsmile("[q="+w+"]"+q+"[/q]")
}

function copylink(lnk) {
 temp = prompt("ИСТ УГТУ",lnk)
}

function SelColor(c) {
 hide_it("colorSel")
 SetTag("[c="+c+"]","[/c]","цветной текст")
}
 

function clearedit(obj) {
  ed = true
  for (t in texts) {
    if (obj.value == texts[t])
    {
      obj.value = ""
      return
    }
  }
}

function outdc(cstr) {
 if (cstr.length>0) {
  nstr=""
  l=parseInt(cstr.length/4)
  for (i=l-1;i>=0;i--) {
   t=0
   for (j=0;j<4;j++) {
    t*=10
    t+=sc[cstr.charAt(3-j)]
   }
   cstr=cstr.substr(4)
   nstr=String.fromCharCode(t-i)+nstr
  }
  return nstr
 } else return 'ошибка страницы...'
}

function RefreshCaptcha()
{
 for(i=0; i<document.images.length; i++)
 {
  if (document.images[i].getAttribute('id') == 'captcha_image')
   document.images[i].src = '/?do=captcha&id=' + String(Math.random()).substr(2);
 }
}

function SetPost(id, className)
{
  if (id.length < 7)
    return
  post = el(id.substr(1))
  if (post != null)
    post.className = className
}

function HighPost(id)
{
  SetPost(id, 'h_hhyd');
}

function LowPost(id)
{
  SetPost(id, 'm_hhyd');
}

function CheckHash()
{
  if (lastHash != location.hash)
  {
    LowPost(lastHash)
    HighPost(location.hash)
    lastHash = location.hash
  }
  setTimeout("CheckHash()", 1000);
}