var root = 'http://amco-triton.co.jp/';
var roots = 'https://amco-triton.co.jp/';

<!--------------------pagetop_start-------------------->
var pageScrollTimer;
function pageScroll(toX,toY,frms,cuX,cuY) { // 020314
 if (pageScrollTimer) clearTimeout(pageScrollTimer);
 if (!toX || toX < 0) toX = 0;
 if (!toY || toY < 0) toY = 0;
 if (!cuX) cuX = 0 + getScrollLeft();
 if (!cuY) cuY = 0 + getScrollTop();
 if (!frms) frms = 6;
 cuX += (toX - getScrollLeft()) / frms; if (cuX < 0) cuX = 0;
 cuY += (toY - getScrollTop()) / frms;  if (cuY < 0) cuY = 0;
 var posX = Math.floor(cuX);
 var posY = Math.floor(cuY);
 window.scrollTo(posX, posY);
 if (posX != toX || posY != toY) {
  pageScrollTimer = setTimeout("pageScroll("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
 }
}

function jumpToPageTop() { // 020301
 if (!MacIE3 && !MacIE4 && !NN && window.scrollTo || NN && (Vminor >= 4.75) && window.scrollTo) {
  pageScroll(0,0,5);
 } else {
  location.hash = "top";
 }
}

function hideScrollBar(_resW,_resH) {
 if (screen.width > _resW && screen.height > _resH) {
  with (document) {
   write('<style type="text/css">');
   write('body { overflow: hidden; }');
   write('<\/style>');
  }
 }
}


<!-- -->
var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;
var NN  = navigator.appName.indexOf("Netscape",0) != -1;
var Moz = navigator.userAgent.indexOf("Gecko",0) != -1;
var Opera = window.opera;
var Vmajor = parseInt(navigator.appVersion); // ex. 3
var Vminor = parseFloat(navigator.appVersion); // ex. 3.01

var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));
var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));

function setObj(id) {
if (document.all) {
return document.all(id);
} else if (document.getElementById) {
return document.getElementById(id);
} else if (document.layers) {
return document.layers[id];
}
return false;
}

// --------------------
// [window] scroll
// --------------------

function getScrollLeft() { // 020225
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
//  if (document.compatMode == 'CSS1Compat') {
  if (document.documentElement) {
   return document.documentElement.scrollLeft;
  }
  else {
   return document.body.scrollLeft;
  }
 } else if (window.pageXOffset) {
  return window.pageXOffset;
 } else {
  return 0;
 }
}

function getScrollTop() { // 020225
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
//  if (document.compatMode == 'CSS1Compat') {
  if (document.documentElement) {
   return document.documentElement.scrollTop;
  }
  else {
   return document.body.scrollTop;
  }
 } else if (window.pageYOffset) {
  return window.pageYOffset;
 } else {
  return 0;
 }
}

function getScrollWidth() { // 010317
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
  if (document.documentElement) {
   return document.documentElement.scrollWidth;
  }
  else {
   return document.body.scrollWidth;
  }
 } else if (window.innerWidth) {
  return window.innerWidth;
 }
 return 0;
}

function getScrollHeight() { // 010317
 if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
  if (document.documentElement) {
   return document.documentElement.scrollHeight;
  }
  else {
   return document.body.scrollHeight;
  }
 } else if (window.innerHeight) {
  return window.innerHeight;
 }
 return 0;
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  newWin = window.open(theURL,winName,features);
  if (newWin)
    newWin.focus();
}

function fitHeight(fix_height)
{
  var div_spacer = MM_findObj("spring_container");
  var h = (getBrowserHeight() - fix_height);
  if(h < 0) h = 0;
  div_spacer.style.height = h + 'px';
}
 
function getBrowserHeight()
{
  if ( window.innerHeight ) {
    return window.innerHeight;
  }
  else if ( document.documentElement && document.documentElement.clientHeight != 0 ) {
    return document.documentElement.clientHeight;
  }
  else if ( document.body ) {
    return document.body.clientHeight;
  }
  return 0;
}

/*function jumpLanguage(eng, page)
{
  var url = '';
  switch(page){
	case 'marine':		url = root + 'marine/';				break;
	case 'mast':		url = root + 'marine/mast/';		break;
	case 'door':		url = root + 'marine/door/';		break;
	case 'hatch':		url = root + 'marine/hatch/';		break;
	case 'tank':		url = root + 'marine/tank/';		break;
	case 'plat_ladder':	url = root + 'marine/plat_ladder/';	break;
	case 'others1':		url = root + 'marine/others1/';		break;

	case 'car_gear':			url = root + 'marine/car_gear/';			break;
	case 'container_gear_f':	url = root + 'marine/container_gear_f/';	break;
	case 'container_gear_l':	url = root + 'marine/container_gear_l/';	break;
	case 'others2':				url = root + 'marine/others2/';				break;
	
	case 'dreggen':		url = root + 'marine/dreggen/';		break;
	case 'cube':		url = root + 'marine/cube/';		break;
	case 'm_film':		url = root + 'marine/eco_film/';	break;
	case 'm_mirror':	url = root + 'marine/eco_mirror/';	break;
	case 'm_health':	url = root + 'marine/health_coat/';	break;
	
	case 'it_eco':		url = root + 'it_eco/';				break;
	case 'protector':	url = root + 'it_eco/protector/';	break;
	case 'amcopro':		url = root + 'it_eco/amcopro/';		break;
	case 'e_film':		url = root + 'it_eco/eco_film/';	break;
	case 'e_mirror':	url = root + 'it_eco/eco_mirror/';	break;
	case 'e_health':	url = root + 'it_eco/health_coat/';	break;

	case 'overseas':	url = root + 'overseas_business/';	break;
	
	case 'network':		url = root + 'network/';			break;
	
	case 'company':		url = root + 'company_recruit/';			break;
	case 'recruit':		url = root + 'company_recruit/recruit/';	break;
	
	case 'contact':		url = roots + 'contact/';			break;
	case 'contact_en':	url = roots + 'contact_en/';		break;

	case 'link':		url = root + 'link/';				break;
	
	case 'sitemap':		url = root + 'sitemap/';			break;

    default:			url = root;							break;
  }
  if (eng)
    url = 'http://translate.google.co.jp/translate?hl=ja&sl=ja&tl=en&u=' + url;
  if (url.length > 0)
    window.open(url, "_top");
}*/

function isEnglish()
{
  var str = window.location.href;
  return (str.match(/^http:\/\/translate.googleusercontent.com\/.*/));
}

function getLanguage(eng, page)
{
  if (page == 'contact' && eng){
    eng = false;
    page = 'contact_en';
  }
  if (page == 'itfbz' && eng){
    eng = false;
    page = 'itfbz_en';
  }
  if (page == 'itfvw' && eng){
    eng = false;
    page = 'itfvw_en';
  }
  if (page == 'dreggen_pdf' && eng){
    eng = false;
    page = 'dreggen_pdf_en';
  }
  if (page == 'dreggen_itf' && eng){
    eng = false;
    page = 'dreggen_itf_en';
  }

  var url = '';
  switch(page){
	case 'marine':		url = root + 'marine/';				break;
	case 'mast':		url = root + 'marine/mast/';		break;
	case 'door':		url = root + 'marine/door/';		break;
	case 'hatch':		url = root + 'marine/hatch/';		break;
	case 'tank':		url = root + 'marine/tank/';		break;
	case 'plat_ladder':	url = root + 'marine/plat_ladder/';	break;
	case 'others1':		url = root + 'marine/others1/';		break;

	case 'car_gear':			url = root + 'marine/car_gear/';			break;
	case 'container_gear_f':	url = root + 'marine/container_gear_f/';	break;
	case 'container_gear_l':	url = root + 'marine/container_gear_l/';	break;
	case 'others2':				url = root + 'marine/others2/';				break;
	
	case 'dreggen':		url = root + 'marine/dreggen/';		break;
	case 'cube':		url = root + 'marine/cube/';		break;
	case 'm_film':		url = root + 'marine/eco_film/';	break;
	case 'm_mirror':	url = root + 'marine/eco_mirror/';	break;
	case 'm_health':	url = root + 'marine/health_coat/';	break;
	
	case 'it_eco':		url = root + 'it_eco/';				break;
	case 'protector':	url = root + 'it_eco/protector/';	break;
	case 'amcopro':		url = root + 'it_eco/amcopro/';		break;
	case 'e_film':		url = root + 'it_eco/eco_film/';	break;
	case 'e_mirror':	url = root + 'it_eco/eco_mirror/';	break;
	case 'e_health':	url = root + 'it_eco/health_coat/';	break;

	case 'overseas':	url = root + 'overseas_business/';	break;
	case 'os_business':	url = root + 'overseas_business/#overseas_business';	break;
	case 'in_business':	url = root + 'overseas_business/#internet_business';	break;
	case 'nw_business':	url = root + 'overseas_business/#new_business';			break;
	
	case 'network':		url = root + 'network/';			break;
	case 'nt_coop':		url = root + 'network/#cooperation';	break;
	case 'nt_flow':		url = root + 'network/#flow';			break;
	case 'nt_friend':	url = root + 'network/#friendship';		break;
	
	case 'company':		url = root + 'company_recruit/';			break;
	case 'philosophy':	url = root + 'company_recruit/#philosophy';		break;
	case 'information':	url = root + 'company_recruit/#information';	break;
	case 'recruit':		url = root + 'company_recruit/recruit/';	break;
	
	case 'contact':		url = roots + 'contact/';			break;
	case 'contact_en':	url = roots + 'contact_en/';		break;

	case 'link':		url = root + 'link/';				break;
	
	case 'policy':		url = root + 'privacypolicy/';		break;
	
	case 'sitemap':		url = root + 'sitemap/';			break;
	
	case 'itfbz':		url = 'http://itf.bz/';				break;
	case 'itfbz_en':	url = 'http://itf.bz/en/';			break;
	
	case 'itfvw':		url = 'http://itf.bz/itf_viewer_download/';		break;
	case 'itfvw_en':	url = 'http://itf.bz/en/itf_viewer_download/';	break;
	
	case 'dreggen_pdf':		url = root + 'marine/dreggen/DREGGEN_brochure.pdf';		break;
	case 'dreggen_pdf_en':	url = root + 'marine/dreggen/DREGGEN_brochure_en.pdf';	break;
	case 'dreggen_itf':		url = root + 'marine/dreggen/DREGGEN_brochure.itf';		break;
	case 'dreggen_itf_en':	url = root + 'marine/dreggen/DREGGEN_brochure_en.itf';	break;

    default:			url = root;							break;
  }
  if (eng)
    url = 'http://translate.google.co.jp/translate?hl=ja&sl=ja&tl=en&u=' + url;
  return url;
}

function jumpLanguage(eng, page, target)
{
  if (target == undefined)
    target = "_top";
  var url = getLanguage(eng, page);
  if (url.length > 0)
    window.open(url, target);
}

<!--------------------pagetop_end-------------------->