function preloadImages() {
  if (document.images) {
    idc_over = newImage("img/top_menu_idc-over.gif");
    vmax_over = newImage("img/top_menu_vmax-over.gif");
    rapeet_over = newImage("img/top_menu_rapeet-over.gif");
    sendnet_over = newImage("img/top_menu_sendnet-over.gif");
    tm1_over = newImage("img/top_menu_tm1-over.gif");
    bacrex_over = newImage("img/top_menu_bacrex-over.gif");
    winwin_over = newImage("img/top_menu_winwin-over.gif");
    /*20090709 saasesリンク追加*/
    saases_over = newImage("img/top_menu_saases-over.gif");
    preloadFlag = true;
  }
}

function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeimg() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeimg.arguments.length; i+=2) {
      document[changeimg.arguments[i]].src = changeimg.arguments[i+1];
    }
  }
}

/*クッキーを指定してサービス紹介ページを開く*/
function SelectIDC(){
  document.cookie="IDC"
  window.open("index_jigyou.html", "_top");
}
function SelectVMAX(){
  document.cookie="VMAX"
  window.open("index_jigyou.html", "_top");
}
function SelectRAPEET(){
  document.cookie="RAPEET"
  window.open("index_jigyou.html", "_top");
}
function SelectSendNet(){
  document.cookie="SENDNET"
  window.open("index_jigyou.html", "_top");
}
function SelectTM1(){
  document.cookie="TM1"
  window.open("index_jigyou.html", "_top");
}
function SelectBACREX(){
  document.cookie="BACREX"
  window.open("index_jigyou.html", "_top");
}
function SelectWinWin(){
  document.cookie="WinWin"
  window.open("index_jigyou.html", "_top");
}
/*20090709 saasesリンク追加*/
function SelectSaaSes(){
  window.open("http://www.saases.jp/","_blank");
}

/*クッキーを指定してサービス紹介ページを開く*/

  var gaiyo = 0;
  var setubi = 0;
  //var service = 0;
  var jigyou = 0;
  var jirei = 0;
  var gruop = 0;
  var toiawase = 0;
  var haken = 0;
  var iValue;
  var iNumber;

  if (document.images){
    var img0 = new Image();
    img0.src = "img/Gaiyo.gif";
    var img1 = new Image();
    img1.src = "img/Gaiyo-over.gif";
    var img2 = new Image();
    img2.src = "img/Gaiyo-click.gif";
    //var img3 = new Image();
    //img3.src = "img/Setubi.gif";
    //var img4 = new Image();
    //img4.src = "img/Setubi-over.gif";
    //var img5 = new Image();
    //img5.src = "img/Setubi-click.gif";
    var img3 = new Image();
    img3.src = "img/Jigyou.gif";
    var img4 = new Image();
    img4.src = "img/Jigyou-over.gif";
    var img5 = new Image();
    img5.src = "img/Jigyou-click.gif";
    var img6 = new Image();
    img6.src = "img/Setubi.gif";
    var img7 = new Image();
    img7.src = "img/Setubi-over.gif"
    var img8 = new Image();
    img8.src = "img/Setubi-click.gif";
    var img9 = new Image();
    img9.src = "img/Jirei.gif";
    var img10 = new Image();
    img10.src = "img/Jirei-over.gif"
    var img11 = new Image();
    img11.src = "img/Jirei-click.gif"
    var img12 = new Image();
    img12.src = "img/Group.gif";
    var img13 = new Image();
    img13.src = "img/Group-over.gif";
    var img14 = new Image();
    img14.src = "img/Group-click.gif";
    var img15 = new Image();
    img15.src = "img/Toiawase.gif";
    var img16 = new Image();
    img16.src = "img/Toiawase-over.gif";
    var img17 = new Image();
    img17.src = "img/Toiawase-click.gif";
    var img18 = new Image();
    img18.src = "img/Haken.gif";
    var img19 = new Image();
    img19.src = "img/Haken-over.gif";
    var img20 = new Image();
    img20.src = "img/Haken-click.gif";
    var imag1 = new Image();
    imag1.src = "img/cover_i_01.jpg";
    var imag2 = new Image();
    imag2.src = "img/cover_i_02.jpg";
  }

  function On1(name)
  {
    if (gaiyo==0)
    {
      if (document.images)
      {
        document.images('Gaiyo').src = eval('name' + '.src');
      }
    }
  }
  function On2(name)
  {
    //if (setubi==0)
    if (jigyou==0)
    {
      if (document.images)
      {
        document.images('Jigyou').src = eval('name' + '.src');
      }
    }
  }
  function On3(name)
  {
    if (setubi==0)
    {
      if (document.images)
      {
        document.images('Setubi').src = eval('name' + '.src');
      }
    }
  }
  function On4(name)
  {
    if (jirei==0)
    {
      if (document.images)
      {
        document.images('Jirei').src = eval('name' + '.src');
      }
    }
  }
  function On5(name)
  {
    if (gruop==0)
    {
      if (document.images)
      {
        document.images('Group').src = eval('name' + '.src');
      }
    }
  }
  function On6(name)
  {
    if (toiawase==0)
    {
      if (document.images)
      {
        document.images('Toiawase').src = eval('name' + '.src');
      }
    }
  }
  function On7(name)
  {
    if (haken==0)
    {
      if (document.images)
      {
        document.images('Haken').src = eval('name' + '.src');
      }
    }
  }

  function Off1(name)
  {
    if (gaiyo==0)
    {
      if (document.images)
      {
        document.images['Gaiyo'].src = eval('name' + '.src');
      }
    }
  }
  function Off2(name)
  {
    //if (setubi==0)
    if (jigyou == 0)
    {
      if (document.images)
      { 
        document.images['Jigyou'].src =  eval('name' + '.src');
      }
    }
  }
  function Off3(name)
  {
    if (setubi==0)
    {
      if (document.images)
      {
        document.images['Setubi'].src =  eval('name' + '.src');
      }
    }
  }
  function Off4(name)
  {
    if (jirei==0)
    {
      if (document.images)
      {
        document.images['Jirei'].src =  eval('name' + '.src');
      }
    }
  }
  function Off5(name)
  {
    if (gruop==0)
    {
      if (document.images)
      {
        document.images['Group'].src =  eval('name' + '.src');
      }
    }
  }
  function Off6(name)
  {
    if (toiawase==0)
    {
      if (document.images)
      {
        document.images['Toiawase'].src =  eval('name' + '.src');
      }
    }
  }
  function Off7(name)
  {
    if (haken==0)
    {
      if (document.images)
      {
        document.images['Haken'].src =  eval('name' + '.src');
      }
    }
  }

  function Show1()
  {
    if (document.images)
    {
      document.cookie= "";
      document.images['Gaiyo'].src = img2.src;
      document.images['Setubi'].src = img6.src;
      //document.images['Service'].src = img6.src;
      document.images['Jigyou'].src = img3.src;
      document.images['Jirei'].src = img9.src;
      document.images['Haken'].src = img18.src;
      document.images['Group'].src = img12.src;
      document.images['Toiawase'].src = img15.src;
      gaiyo=1;
      jigyou=0;
      setubi=0;
      //service=0;
      jirei=0;
      gruop=0;
      toiawase=0;
      haken=0;
    }
  }
  function Show2()
  {
    if (document.images)
    { 
      document.cookie= "";
      document.images['Gaiyo'].src = img0.src;
      document.images['Setubi'].src = img6.src;
      //document.images['Service'].src = img6.src;
      document.images['Jigyou'].src = img5.src;
      document.images['jirei'].src = img9.src;
      document.images['Haken'].src = img18.src;
      document.images['Group'].src = img12.src;
      document.images['Toiawase'].src = img15.src;
      gaiyo=0;
      jigyou=1;
      setubi=0;
      //service=0;
      jirei=0;
      gruop=0;
      toiawase=0;
      haken=0
    }
  }
  function Show3()
  {
    if (document.images)
    {
      document.cookie= "";
      document.images['Gaiyo'].src = img0.src;
      document.images['Setubi'].src = img8.src;
      //document.images['Service'].src = img8.src;
      document.images['Jigyou'].src = img3.src;
      document.images['Jirei'].src = img9.src;
      document.images['Haken'].src = img18.src;
      document.images['Group'].src = img12.src;
      document.images['Toiawase'].src = img15.src;
      gaiyo=0;
      jigyou=0;
      setubi=1;
      //service=1;
      jirei=0;
      gruop=0;
      toiawase=0;
      haken=0;
    }
  }
  function Show4()
  {
    if (document.images)
    {
      document.cookie= "";
      document.images['Gaiyo'].src = img0.src;
      document.images['Setubi'].src = img6.src;
      //document.images['Service'].src = img6.src;
      document.images['Jigyou'].src = img3.src;
      document.images['Jirei'].src = img11.src;
      document.images['Haken'].src = img18.src;
      document.images['Group'].src = img12.src;
      document.images['Toiawase'].src = img15.src;
      gaiyo=0;
      jigyou=0;
      setubi=0;
      //service=0;
      jirei=1;
      gruop=0;
      toiawase=0;
      haken=0;
    }
  }
  function Show5()
  {
    if (document.images)
    {
      document.cookie= "";
      document.images['Gaiyo'].src = img0.src;
      document.images['Setubi'].src = img6.src;
      //document.images['Service'].src = img6.src;
      document.images['Jigyou'].src = img3.src;
      document.images['Jirei'].src = img9.src;
      document.images['Haken'].src = img18.src;
      document.images['Group'].src = img14.src;
      document.images['Toiawase'].src = img15.src;
      gaiyo=0;
      jigyou=0;
      setubi=0;
      //service=0;
      jirei=0;
      gruop=1;
      toiawase=0;
      haken=0;
    }
  }
  function Show6()
  {
    if (document.images)
    { 
      document.cookie= "";
      document.images['Gaiyo'].src = img0.src;
      document.images['Setubi'].src = img6.src;
      //document.images['Service'].src = img6.src;
      document.images['Jigyou'].src = img3.src;
      document.images['Jirei'].src = img9.src;
      document.images['Haken'].src = img18.src;
      document.images['Group'].src = img12.src;
      document.images['Toiawase'].src = img17.src;
      gaiyo=0;
      jigyou=0;
      setubi=0;
      //service=0;
      jirei=0;
      gruop=0;
      toiawase=1;
      haken=0;
    }
  }
  function Show7()
  {
    if (document.images)
    {
      document.cookie= "";
      document.images['Gaiyo'].src = img0.src;
      document.images['Setubi'].src = img6.src;
      //document.images['Service'].src = img6.src;
      document.images['Jigyou'].src = img3.src;
      document.images['Jirei'].src = img9.src;
      document.images['Haken'].src = img20.src;
      document.images['Group'].src = img12.src;
      document.images['Toiawase'].src = img15.src;
      gaiyo=0;
      jigyou=0;
      setubi=0;
      //service=0;
      jirei=0;
      gruop=0;
      toiawase=0;
      haken=1;
    }
  }

  function TopImage(){
    iValue = Math.random() * 2;
    iNumber = Math.ceil(iValue);
    if (iNumber == 0)
    {
      iNumber++;
    }
    document.images['TOP'].src = eval('imag' + iNumber + '.src');
  }