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];
      }
    }
  }
}

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;
}

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('HPB_ROLLOVER1', 'image/logo/n_home.gif', 'image/logo/m_home.gif');
HpbImgPreload('HPB_ROLLOVER2', 'image/logo/n_shinchaku.jpg', 'image/logo/m_shinchaku.jpg');
HpbImgPreload('HPB_ROLLOVER3', 'image/logo/n_inaka.gif', 'image/logo/m_inaka.gif');
HpbImgPreload('HPB_ROLLOVER4', 'image/logo/n_sea.gif', 'image/logo/m_sea.gif');
HpbImgPreload('HPB_ROLLOVER5', 'image/logo/n_kodate.gif', 'image/logo/m_kodate.gif');
HpbImgPreload('HPB_ROLLOVER6', 'image/logo/n_manshon.gif', 'image/logo/m_manshon.gif');
HpbImgPreload('HPB_ROLLOVER7', 'image/logo/n_kaisha.gif', 'image/logo/m_kaisha.gif');
HpbImgPreload('HPB_ROLLOVER8', 'image/logo/n_sitemap.gif', 'image/logo/m_sitemap.gif');
HpbImgPreload('HPB_ROLLOVER9', 'image/rollover/n_hazama-chuuko.gif', 'image/rollover/m_hazama-chuuko.gif');
HpbImgPreload('HPB_ROLLOVER10', 'image/rollover/n_yabugayatsu-shinchiku.gif', 'image/rollover/m_yabugayatsu-shinchiku.gif');
HpbImgPreload('HPB_ROLLOVER11', 'image/rollover/n_motona-kazahaya2.gif', 'image/rollover/m_motona-kazahaya2.gif');
HpbImgPreload('HPB_ROLLOVER12', 'image/rollover/n_new-iwai-ekimae.gif', 'image/rollover/m_new-iwai-ekimae.gif');
HpbImgPreload('HPB_ROLLOVER13', 'image/rollover/n_new-marine-f3.gif', 'image/rollover/m_new-marine-f3.gif');
HpbImgPreload('HPB_ROLLOVER14', 'image/rollover/n_new-marine-c4.gif', 'image/rollover/m_new-marine-c4.gif');
HpbImgPreload('HPB_ROLLOVER15', 'image/rollover/n_shimosakuma-enoki.gif', 'image/rollover/m_shimosakuma-enoki.gif');
HpbImgPreload('HPB_ROLLOVER16', 'image/rollover/n_ichibu-kannonyama.gif', 'image/rollover/m_ichibu-kannonyama.gif');
HpbImgPreload('HPB_ROLLOVER17', 'image/rollover/n_shoubuchi.gif', 'image/rollover/m_shoubuchi.gif');
HpbImgPreload('HPB_ROLLOVER18', 'image/logo/n_inaka-logo.gif', 'image/logo/m_inaka-logo.gif');
HpbImgPreload('HPB_ROLLOVER19', 'image/logo/n_umi-logo.gif', 'image/logo/m_umi-logo.gif');
HpbImgPreload('HPB_ROLLOVER20', 'image/logo/n_inaka-shashin.gif', 'image/logo/m_inaka-shashin.gif');
HpbImgPreload('HPB_ROLLOVER21', 'image/logo/n_inaka-shashin2.gif', 'image/logo/m_inaka-shashin2.gif');
HpbImgPreload('HPB_ROLLOVER22', 'image/logo/n_okyakusama.gif', 'image/logo/m_okyakusama.gif');
HpbImgPreload('HPB_ROLLOVER23', 'image/rollover/n_new-yabugayatsu.gif', 'image/rollover/m_new-yabugayatsu.gif');