var LBD_ImgId = null;
var LBD_Img = null;
var LBD_NewImg = null; 
var LBD_Parent = null;
var LBD_Prompt = null;
var LBD_Timer = null;
var LBD_TimerTicks = 0;

//function LBD_LoadSound(soundPlaceholderId, soundLink)
//{
//  if(document.getElementById)
//  {
//    var i = soundLink.indexOf('&d=');
//    if (-1 != i) {
//      soundLink = soundLink.substring(0, i);
//    }
//    
//    soundLink = soundLink + '&d=' + LBD_GetTimestamp();
//    
//    if ((-1 == soundLink.indexOf('&e=')) && 
//        (document.location.protocol == "https:")) {
//      soundLink = soundLink + '&e=1';
//    }

//    var placeholder = document.getElementById(soundPlaceholderId);
//    var objectSrc = "<object id='captchaSound' 
//      classid='clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95' 
//      height='0' width='0' style='width:0; height:0;'>
//      <param name='AutoStart' value='1' />
//      <param name='Volume' value='0' />
//      <param name='PlayCount' value='1' />
//      <param name='FileName' value='" + soundLink + "' />
//      <embed id='captchaSoundEmbed' src='"+ soundLink + 
//        "' autoplay='true' hidden='true' volume='100' 
//        type='"+ LBD_GetMimeType() +"' style='display:inline;' />
//    </object>";

//    placeholder.innerHTML = "";
//    placeholder.innerHTML = objectSrc;
//  }
//}

function LBD_GetTimestamp() {
  var d = new Date();
  var t = d.getTime() + (d.getTimezoneOffset() * 60000);
  return t;
}

function LBD_GetMimeType()
{
  var mimeType = "audio/x-wav";
  return mimeType;
}

function LBD_ReloadImage(imgId)
{ 
  if(imgId)
  {
    LBD_ImgId = imgId;
    LBD_Img = document.getElementById(LBD_ImgId);
    var src = LBD_Img.src;
    
    var i = src.indexOf('&d=');
    if (-1 != i) {
      src = src.substring(0, i);
    }
    var newSrc = src + '&d=' + LBD_GetTimestamp();

    LBD_NewImg = document.createElement('img');
    LBD_NewImg.onload = LBD_ShowImage;
    LBD_NewImg.id = LBD_Img.id;
    LBD_NewImg.alt = LBD_Img.alt;
    LBD_NewImg.src = newSrc;

    LBD_Prompt = document.createElement('span');
    LBD_Prompt.appendChild(document.createTextNode('.'));

    LBD_PreReloadImage();
    LBD_Parent = LBD_Img.parentNode;
    LBD_Parent.removeChild(LBD_Img);
    LBD_Parent.appendChild(LBD_Prompt);

    LBD_ShowProgress()
  }
}	

function LBD_ShowProgress()
{
  if((LBD_Prompt)&&(LBD_TimerTicks < 100))
  {
    LBD_TimerTicks = LBD_TimerTicks + 1;

    if(0 == LBD_TimerTicks % 5)
    {
      LBD_Prompt.firstChild.nodeValue = '.';     
    }
    else
    {
      LBD_Prompt.firstChild.nodeValue = 
        LBD_Prompt.firstChild.nodeValue + '.';
    }

    LBD_Timer = setTimeout("LBD_ShowProgress()", 250);
  }
  else
  {
    clearTimeout(LBD_Timer);
    LBD_TimerTicks = 0;
  }
}

function LBD_ShowImage()
{
  if(LBD_NewImg && LBD_Parent && LBD_Prompt)
  {
    LBD_Parent.removeChild(LBD_Prompt);
    LBD_Parent.appendChild(LBD_NewImg);
    LBD_Prompt = null;
    LBD_PostReloadImage();
  }
}

function LBD_PreReloadImage() {}
function LBD_PostReloadImage() {}

function LBD_RegisterHandler(eventName, userHandler)
{
  switch(eventName.toLowerCase())
  {
    case 'prereloadcaptchaimage':
      var LBD_OldHandler = LBD_PreReloadImage;
      LBD_PreReloadImage = function() {
        LBD_OldHandler();
        userHandler();
      }
      break;
    case 'postreloadcaptchaimage':
      var oldHandler = LBD_PostReloadImage;
      LBD_PostReloadImage = function() {
        LBD_OldHandler();
        userHandler();
      }
      break;
  }
}

if ((typeof(Sys) != "undefined") && 
    (typeof(Sys.Application) != "undefined")) {
  Sys.Application.notifyScriptLoaded();
}