// HpbImgPreload:
//
function HpbImgPreload()
{
  var appVer=parseInt(navigator.appVersion);
  var isNC=false,isN6=false,isIE=false;
  if (document.all && appVer >= 4) isIE=true; else
    if (document.getElementById && appVer > 4) isN6=true; else
      if (document.layers && appVer >= 4) isNC=true;
  if (isNC||isN6||isIE)
  {
    if (document.images)
    {
      var imgName = HpbImgPreload.arguments[0];
      var cnt;
      swImg[imgName] = new Array;
      for (cnt = 1; cnt < HpbImgPreload.arguments.length; cnt++)
      {
        swImg[imgName][HpbImgPreload.arguments[cnt]] = new Image();
        swImg[imgName][HpbImgPreload.arguments[cnt]].src = HpbImgPreload.arguments[cnt];
      }
    }
  }
}
// HpbImgFind:
//
function HpbImgFind(doc, imgName)
{
  for (var i=0; i < doc.layers.length; i++)
  {
    var img = doc.layers[i].document.images[imgName];
    if (!img) img = HpbImgFind(doc.layers[i], imgName);
    if (img) return img;
  }
  return null;
}
// HpbImgSwap:
//
function HpbImgSwap(imgName, imgSrc)
{
  var appVer=parseInt(navigator.appVersion);
  var isNC=false,isN6=false,isIE=false;
  if (document.all && appVer >= 4) isIE=true; else
    if (document.getElementById && appVer > 4) isN6=true; else
      if (document.layers && appVer >= 4) isNC=true;
  if (isNC||isN6||isIE)
  {
    if (document.images)
    {
      var img = document.images[imgName];
      if (!img) img = HpbImgFind(document, imgName);
      if (img) img.src = imgSrc;
    }
  }
}
var swImg; swImg=new Array;

HpbImgPreload('BTN_OVER1', 'img/bot_outline01.gif', 'img/bot_outline02.gif');
HpbImgPreload('BTN_OVER2', 'img/bot_consult01.gif', 'img/bot_consult02.gif');
HpbImgPreload('BTN_OVER3', 'img/bot_hospital01.gif', 'img/bot_hospital02.gif');
HpbImgPreload('BTN_OVER4', 'img/bot_use01.gif', 'img/bot_use02.gif');
HpbImgPreload('BTN_OVER5', 'img/bot_post01.gif', 'img/bot_post02.gif');
HpbImgPreload('BTN_OVER6', 'img/bot_invitation01.gif', 'img/bot_invitation02.gif');

HpbImgPreload('UP_OVER', 'img/bot_up01.gif', 'img/bot_up02.gif');
HpbImgPreload('UP_OVER01', 'img/bot_up01.gif', 'img/bot_up02.gif');
HpbImgPreload('UP_OVER02', 'img/bot_up01.gif', 'img/bot_up02.gif');
HpbImgPreload('UP_OVER03', 'img/bot_up01.gif', 'img/bot_up02.gif');
HpbImgPreload('UP_OVER04', 'img/bot_up01.gif', 'img/bot_up02.gif');
HpbImgPreload('UP_OVER05', 'img/bot_up01.gif', 'img/bot_up02.gif');

HpbImgPreload('TOP_OVER', 'img/bot_gototop01.gif', 'img/bot_gototop02.gif');
HpbImgPreload('TOP_OVER01', 'img/bot_sche01.gif', 'img/bot_sche02.gif');
HpbImgPreload('TOP_OVER02', 'img/bot_link01.gif', 'img/bot_link02.gif');
HpbImgPreload('TOP_OVER03', 'img/bot_sitemap01.gif', 'img/bot_sitemap02.gif');