function preloadImg(imgName) {
 for (var i = 0; i < imgName.length; i++) {
  if (document.images) (new Image()).src = imgName[i];
 }
}
var menuimgs = new Array(
/*-- HEADR NAVI --*/
'/imglib/hnv_home_ov.jpg',
'/imglib/hnv_sitemap_ov.jpg',
'/imglib/hnv_english_ov.jpg',
/*-- other GROBAL NAVI --*/
'/imglib/gnv_concept_ov.jpg',
'/imglib/gnv_service_ov.jpg',
'/imglib/gnv_about_ov.jpg',
'/imglib/gnv_recruit_ov.jpg',
'/imglib/gnv_contact_ov.jpg',
/*-- services&solutions NAVI --*/
'/imglib/ssnv_total_ov.gif',
'/imglib/ssnv_mobileads_ov.gif',
'/imglib/ssnv_mediarep_ov.gif',
'/imglib/ssnv_media_ov.gif',
'/imglib/ssnv_netmedia_ov.gif',
'/imglib/ssnv_portal_ov.gif',
'/imglib/ssnv_searchads_ov.gif',
'/imglib/ssnv_commerce_ov.gif',
'/imglib/ssnv_exsample_ov.gif',
'/imglib/ssnv_contents_ov.gif',
'/imglib/ssnv_solution_ov.gif',
'/imglib/ssnv_global_ov.gif',
/*-- about CAMOBILE NAVI --*/
'/imglib/abnv_outline_ov.gif',
'/imglib/abnv_greeting_ov.gif',
'/imglib/abnv_trans_ov.gif',
'/imglib/abnv_client_ov.gif',
'/imglib/abnv_history_ov.gif',
'/imglib/abnv_news_ov.gif',
/*-- recruit NAVI --*/
'/recruit/imgs/recnv_fresh_ov.gif',
'/recruit/imgs/recnv_carrer_ov.gif',
/*-- contact us NAVI --*/
'/imglib/catnv_ads_ov.gif',
'/imglib/catnv_other_ov.jpg');
preloadImg(menuimgs);


// 英語版へ
function changeLang () {
  var baseurl = window.location.pathname;
  dir = new Array ();
  dir = baseurl.split ("/");
  var targeturl = dir[1] + "/";
  
  // トップへ
  if (dir[1] == "solution" || dir[1] == "content" || dir[1] == "career") {
    targeturl = "";
  }
  else if ((n = dir[1].indexOf (".html")) != -1) {
    targeturl = dir[1];
  }
  // 第2階層
  else if (dir[2] == "*****") {
    targeturl = targeturl + "*****/";
  }
  
  window.location.href = "http://" + window.location.hostname + "/english/" + targeturl;

}

//Window
function nwOpen(wUrl,wName,wOption) {
	window.open(wUrl,wName,wOption);
}

//スクロール
var y = 0;
var ny = 0;
var speed = 0;
var scrollSize =0.8;

function pagetop(){
 var rep = setTimeout("pagetop()", speed)
 if(document.all){
  y = document.body.scrollTop;
 }
 else if(document.layers || document.getElementById){
  y = pageYOffset;
 }
 if(ny == y){ 
  clearTimeout(rep);
 }
 else{
  ny = y;
 }
 y = y *0.8 ;
 window.scrollTo(0,y); 
}