//HEADER font size change


uaName = navigator.userAgent;
appName = navigator.appVersion;


var fontSizeUnit = "%";
var perOrder = 7;
var defaultSize = 72;
var smallFont = 65;
var largeFont = 86;
var ckName = "fsc";
var ckName_tab_jp = "tab_image_jp";
var ckName_tab_en = "tab_image_en";
var ckDays = 1;
var ckPath = "/"

//get cookie for font size
var fsCK = GetCookie(ckName);

if ( fsCK == null ) {
	currentSize = defaultSize;
} else {
	currentSize = Number(fsCK);
}


//get cookie for font size
var fsCK_tab_jp = GetCookie(ckName_tab_jp);
var fsCK_tab_en = GetCookie(ckName_tab_en);

if ( fsCK_tab_jp == null ) {
	currentimage_jp = "/images/japanese/tab_zaimu.gif";
}else{
	currentimage_jp = fsCK_tab_jp;
}

if ( fsCK_tab_en == null ) {
	currentimage_en = "/images/english/tab_zaimu_e.gif";
}else{
	currentimage_en = fsCK_tab_en;
}

function loadFsc(lang){
	if (Number(fsCK) == smallFont){
		fsc("smaller",lang);
	}else if (Number(fsCK) == largeFont){
		fsc("larger",lang);
	}else{
		fsc("default",lang);
	}
}

function fscRef(){
	//  NN4 or MacIE4
	if (( document.layers )||(( appName.indexOf("Mac",0) != -1 ) && ( uaName.indexOf("MSIE 4.0",0) != -1 ))){
	  return false;
	} else if( document.body ){
  	  // fontSize
	  document.body.style.fontSize = currentSize + fontSizeUnit;
	}
}

function fscRef_tab(lang){
	if (lang == "jp"){
		currentimage = currentimage_jp;
		switch(currentimage){
			case '/images/japanese/tab_zaimu.gif': 
				MM_showHideLayers('menu1','','block','menu2','','none','menu3','','none','menu4','','none','menu5','','none');
				break;
			case '/images/japanese/tab_kigyo.gif': 
				MM_showHideLayers('menu1','','none','menu2','','block','menu3','','none','menu4','','none','menu5','','none');
				break;
			case '/images/japanese/tab_keiei.gif': 
				MM_showHideLayers('menu1','','none','menu2','','none','menu3','','block','menu4','','none','menu5','','none');
				break;
			case '/images/japanese/tab_kabushiki.gif': 
				MM_showHideLayers('menu1','','none','menu2','','none','menu3','','none','menu4','','block','menu5','','none');
				break;
			case '/images/japanese/tab_kojin.gif': 
				MM_showHideLayers('menu1','','none','menu2','','none','menu3','','none','menu4','','none','menu5','','block');
				break;
		}
	} else {
		currentimage = currentimage_en;
		switch(currentimage){
			case '/images/english/tab_zaimu_e.gif': 
				MM_showHideLayers('menu1','','block','menu2','','none','menu3','','none','menu4','','none','menu5','','none');
				break;
			case '/images/english/tab_kigyo_e.gif': 
				MM_showHideLayers('menu1','','none','menu2','','block','menu3','','none','menu4','','none','menu5','','none');
				break;
			case '/images/english/tab_keiei_e.gif': 
				MM_showHideLayers('menu1','','none','menu2','','none','menu3','','block','menu4','','none','menu5','','none');
				break;
			case '/images/english/tab_kabushiki_e.gif': 
				MM_showHideLayers('menu1','','none','menu2','','none','menu3','','none','menu4','','block','menu5','','none');
				break;
		}
	}

	//  NN4 or MacIE4
	if (( document.layers )||(( appName.indexOf("Mac",0) != -1 ) && ( uaName.indexOf("MSIE 4.0",0) != -1 ))){
		document.getElementById("tab_image").innerHTML = '<img src="/images/japanese/tab_zaimu.gif" alt="" name="Image8" width="574" height="28" border="0" usemap="#tabs" id="Image8">';


	} else if( document.body ){
  		// tab image
		document.getElementById("tab_image").innerHTML = '<img src="' + currentimage + '" alt="" name="Image8" width="574" height="28" border="0" usemap="#tabs" id="Image8">';
	}
}


function fsc( CMD , lang){

  var chisaiBtn = document.getElementById("chisaiBtn");
  var chuoBtn = document.getElementById("chuoBtn");
  var daiBtn = document.getElementById("daiBtn");

  if( CMD == "larger" ){
    var newSize = largeFont;
    SetCookie( ckName , newSize );
	document["chisaiBtn"].src="/images/"+lang+"/chisai.gif";
	document["chuoBtn"].src="/images/"+lang+"/chuo.gif";
	document["daiBtn"].src="/images/"+lang+"/dai_on.gif";
  }else if( CMD == "smaller" ){
    var newSize = smallFont;
    SetCookie( ckName , newSize );
	document["chisaiBtn"].src="/images/"+lang+"/chisai_on.gif";
	document["chuoBtn"].src="/images/"+lang+"/chuo.gif";
	document["daiBtn"].src="/images/"+lang+"/dai.gif";
  }else {
    var newSize = defaultSize;
    DeleteCookie( ckName );
	document["chisaiBtn"].src="/images/"+lang+"/chisai.gif";
	document["chuoBtn"].src="/images/"+lang+"/chuo_on.gif";
	document["daiBtn"].src="/images/"+lang+"/dai.gif";
  }


  // NN4 or MacIE4.0
  // NN4
  if( document.layers ){
    window.alert( "Netscape Communicator4 is not supported." );
    return false;
  }

  // MacIE4
  else if(( appName.indexOf("Mac",0) != -1 ) && ( uaName.indexOf("MSIE 4.0",0) != -1)){
    window.alert( "Sorry! MacIE4 is not supported." );
    return false;
  }

  else{
  currentSize = newSize;
  fscRef();
  }
}


function tab_image(CMD,lang){

  if(lang == 'jp'){
	  SetCookie( ckName_tab_jp , CMD );
  } else {
	  SetCookie( ckName_tab_en , CMD );
  }

  // NN4 or MacIE4.0
  // NN4
  if( document.layers ){
    window.alert( "Netscape Communicator4 is not supported." );
    return false;
  }

  // MacIE4
  else if(( appName.indexOf("Mac",0) != -1 ) && ( uaName.indexOf("MSIE 4.0",0) != -1)){
    window.alert( "Sorry! MacIE4 is not supported." );
    return false;
  }

  else{
	  if(lang == 'jp'){
		  currentimage_jp = CMD;
	  } else {
		  currentimage_en = CMD;
	  }
	  fscRef_tab(lang);
  }
}


function SetCookie(name,value){
  var dobj = new Date();
  dobj.setTime( dobj.getTime() + 24 * 60 * 60 * ckDays * 1000);
  var expiryDate = dobj.toGMTString();
  document.cookie = name + '=' + escape(value)+ ';expires=' + expiryDate + ';path=' + ckPath;
}

function GetCookie (name){
  var arg  = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen){
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
    return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break;
  }
   return null;
}

function getCookieVal (offset){
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
  endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset,endstr));
}

function DeleteCookie(name){
  if (GetCookie(name)) {
    document.cookie = name + '=' +
    '; expires=Thu, 01-Jan-70 00:00:01 GMT;path='+ckPath;
  }
}