function changeImage(){
  
  try {
  
    // 画像パス
    var path = "../img/top/sample/";
    
    // 画像ファイル名(※画像の名前を統一させとくex).background1.gif,background2.gif)
    var imgName = "sample";
    
    // 画像インデックス
    var imgIdx = parseInt(document.getElementById('imgId').value);
    
    // 最後の画像まできたら最初から
    if (imgIdx == 8) {
      imgIdx = 0;
    }
    
    // 次の画像
    imgIdx += 1;
    document.getElementById('imgId').value = imgIdx;
    
    var url = path + imgName + imgIdx.toString(10) + ".gif";
    
    // 画像切替
    document.getElementById("aa").src = url;

  }catch (e) {
    alert(e.description);
  }
  
}

/**
 * 時間帯でトップ画像を切り替える
 */
function setTimeZoneImage(pageName){
  try {
  
    // 画像パス
    var imgPath;
    var img1,img2,img3,img4;
    
    switch (pageName){
  //ホーム
  case 1:
    imgPath = "./img/top/";
    img1 = "topimg3.gif";
    img2 = "topimg1.gif";
    img3 = "topimg2.gif";
    img4 = "topimg3.gif";
    break;
  //会社概要
  case 2:
    imgPath = "../img/company/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif";    
    break;
  //経営方針
  case 3:
    imgPath = "../img/manage/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif"; 
    break;
  //業務内容
  case 4:
    imgPath = "../img/works/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif";    
    break;
  //開発実績
  case 5:
    imgPath = "../img/results/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif"; 
    break;
  //採用情報
  case 6:
    imgPath = "../img/recruit/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif";    
    break;
  //アクセス
  case 7:
    imgPath = "../img/access/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif"; 
    break;
  //お問い合わせ及び確認画面
  case 8:
    imgPath = "../img/contact/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif";    
    break;
  //お問い合わせ（送信完了画面）
  case 9:
    imgPath = "../img/completion/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif";    
    break;
  //スタッフブログ
  case 10:
    imgPath = "../img/blog/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif"; 
    break;
  //プライバシーポリシー
  case 11:
    imgPath = "../img/privacy/";
    img1 = "mainimg3.gif";
    img2 = "mainimg1.gif";
    img3 = "mainimg2.gif";
    img4 = "mainimg3.gif";    
    break;
}

    
    // 現在時間(h)取得
    h = (new Date()).getHours();
    
    // 時間帯で画像切替
    if((h >=  0) && (h < 5))  imgPath = imgPath + img1;
    if((h >=  5) && (h < 11)) imgPath = imgPath + img2;
    if((h >= 11) && (h < 17)) imgPath = imgPath + img3;
    if((h >= 17) && (h < 24)) imgPath = imgPath + img4;
    document.getElementById("aa").src = imgPath;
    
  }catch (e) {
    alert(e.description);
  }
  
}


/*
function check(){
  
  try {
   document.getElementById('companyerr').innerText='入力されていません';
   document.getElementById('emailerr').innerText='入力されていません';
   document.getElementById('inquiryerr').selectedIndex='選択されていません';

  }catch (e) {
    alert(e.description);
  }
 
}
*/

/*
---------------------------------
お問い合わせフォーム入力チェック
---------------------------------
*/
function check(){
  var errflg = false;
    //エラーメッセージの初期化
    document.getElementById('nameerr').innerHTML='';
    document.getElementById('telerr').innerHTML='';
    document.getElementById('emailerr').innerHTML='';
    document.getElementById('inquiryerr').innerHTML='';
    document.getElementById('boxerr').innerHTML='';
    //エラー枠線の初期化
    document.getElementById("name").className = "";
    document.getElementById("tel").className = "";
    document.getElementById("email").className = "";
    document.getElementById("inquirytype").className = "";
    document.getElementById("inquirybox").className = "";
  
  //名前入力チェック
  if (document.getElementById('name').value=="") {
    document.getElementById('nameerr').innerHTML='入力されていません';
    document.getElementById("name").className = 'err';
    errflg=true;
  }
  
  //電話番号入力チェック
  if (document.getElementById('tel').value!="") {
     //0～9の数字で入力されているかチェック
     if (document.form.tel.value.match( /[^0-9]+/)){
      document.getElementById('telerr').innerHTML='正しく入力してください';
      document.getElementById("tel").className = "err";
      errflg=true;
    }
  }

  //メール入力チェック   
  if (document.getElementById('email').value=="") {
    document.getElementById('emailerr').innerHTML='入力されていません';
    document.getElementById("email").className = "err";
    errflg=true;
  } else {
   
//     if (!document.form.email.value.match(/^[A-Za-z0-9]+[\w-]+@[\w\.-]+\.\w{2,}$/)){
     if (!document.form.email.value.match(/^[0-9,A-Z,a-z][0-9,a-z,A-Z,_,\.,-]+@[0-9,A-Z,a-z][0-9,a-z,A-Z,_,\.,-]+\.(af|al|dz|as|ad|ao|ai|aq|ag|ar|am|aw|ac|au|at|az|bh|bd|bb|by|bj|bm|bt|bo|ba|bw|br|io|bn|bg|bf|bi|kh|cm|ca|cv|cf|td|gg|je|cl|cn|cx|cc|co|km|cg|cd|ck|cr|ci|hr|cu|cy|cz|dk|dj|dm|do|tp|ec|eg|sv|gq|er|ee|et|fk|fo|fj|fi|fr|gf|pf|tf|fx|ga|gm|ge|de|gh|gi|gd|gp|gu|gt|gn|gw|gy|ht|hm|hn|hk|hu|is|in|id|ir|iq|ie|im|il|it|jm|jo|kz|ke|ki|kp|kr|kw|kg|la|lv|lb|ls|lr|ly|li|lt|lu|mo|mk|mg|mw|my|mv|ml|mt|mh|mq|mr|mu|yt|mx|fm|md|mc|mn|ms|ma|mz|mm|na|nr|np|nl|an|nc|nz|ni|ne|ng|nu|nf|mp|no|om|pk|pw|pa|pg|py|pe|ph|pn|pl|pt|pr|qa|re|ro|ru|rw|kn|lc|vc|ws|sm|st|sa|sn|sc|sl|sg|sk|si|sb|so|za|gs|es|lk|sh|pm|sd|sr|sj|sz|se|ch|sy|tw|tj|tz|th|bs|ky|tg|tk|to|tt|tn|tr|tm|tc|tv|ug|ua|ae|uk|us|um|uy|uz|vu|va|ve|vn|vg|vi|wf|eh|ye|yu|zm|zw|com|net|org|gov|edu|int|mil|biz|info|name|pro|jp)$/i)){
     document.getElementById('emailerr').innerHTML='メールアドレスに誤りがあります';
     document.getElementById("email").className = "err";
     errflg=true;
   }
 }
//お問い合わせ選択チェック
  if (document.getElementById('inquirytype').value=="0") {
    document.getElementById('inquiryerr').innerHTML='選択されていません';
    document.getElementById("inquirytype").className = "err";
    errflg=true;
  }
   
//お問い合わせ内容入力チェック   
  if (document.form.inquirybox.value=="") {
    document.getElementById('boxerr').innerHTML='入力されていません';
    document.getElementById("inquirybox").className = "err";
    errflg=true;
  }
  if(errflg!=true) {
    document.form.submit();
  }
}

// 入力欄にテストデータ表示
function test()
{
  document.getElementById("company").value="きしゃめい";
  document.getElementById("division").value="ぶしょめい";
  document.getElementById("name").value="おなまえ";
  document.getElementById("tel").value="0123456789";
  document.getElementById("email").value="m.korogi@radsoft.co.jp";
  document.getElementById("inquirytype").selectedIndex = 3;
  document.getElementById("inquirybox").value="おといあわせないよう";
}


//トップページ　ブログへリンク
function go_href1(){
    location.href="./category/bloglist.html#_617";
}

function go_href2(){
    location.href="./category/bloglist.html#_0403";
}

function go_href3(){
    location.href="./category/bloglist.html#_0320";
}

function go_href4(){
    location.href="./category/bloglist.html";
}