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

//"em"||"%"
var fontSizeUnit = "%";
var ADJvalue =20;
//通常
var initSize = 80
var LSize = 120
var SSize = 70

var CookieName = "zengin";
//有効期限
var EXPdate = 90;
//Path "/"
var CookiePath = "/"


//
var sizecheck = GetCookie(CookieName);

if ( sizecheck == null ) {
  currentSize = initSize;
}
else{
  currentSize = Number(sizecheck);
}

function incfontresize(){
	var str='<a href="javascript:;" onclick="fsc(\'larger\'); return false;"><img src="/common/images/comm_fontchange01_n.gif" alt="文字サイズ[大]" width="26" height="26" border="0" id="btn_fontsize_l" class="mr_03" /></a>';
		str+='<a href="javascript:;" onclick="fsc(\'default\'); return false;"><img src="/common/images/comm_fontchange02_n.gif" alt="文字サイズ[中]" width="26" height="26" border="0" id="btn_fontsize_m" class="mr_03" /></a>';
		str+='<a href="javascript:;" onclick="fsc(\'smaller\'); return false;"><img src="/common/images/comm_fontchange03_n.gif" alt="文字サイズ[小]" width="26" height="26" border="0" id="btn_fontsize_s" class="mr_11" /></a>';
		document.write(str);
}
function incfontresizeEn(){
	var str='<a href="javascript:;" onclick="fsc(\'larger\'); return false;"><img src="/common/images/comm_fontchange01_n.gif" alt="文字サイズ[大]" width="26" height="26" border="0" id="btn_fontsize_l" class="mr_03" /></a>';
		str+='<a href="javascript:;" onclick="fsc(\'default\'); return false;"><img src="/common/images/comm_fontchange02_n.gif" alt="文字サイズ[中]" width="26" height="26" border="0" id="btn_fontsize_m" class="mr_03" /></a>';
		str+='<a href="javascript:;" onclick="fsc(\'smaller\'); return false;"><img src="/common/images/comm_fontchange03_n.gif" alt="文字サイズ[小]" width="26" height="26" border="0" id="btn_fontsize_s" class="mr_11" /></a>';
		document.write(str);
}

/********************/
function fscRef(){
//commonClass.prototype.fscRef = function (){
	var child="";
	switch (currentSize) {
	case LSize:
		document.images["btn_fontsize_s"].src =document.images["btn_fontsize_s"].src.replace("comm_fontchange03_o.gif","comm_fontchange03_n.gif");
		document.images["btn_fontsize_m"].src =document.images["btn_fontsize_m"].src.replace("comm_fontchange02_o.gif","comm_fontchange02_n.gif");
		document.images["btn_fontsize_l"].src =document.images["btn_fontsize_l"].src.replace("comm_fontchange01_n.gif","comm_fontchange01_o.gif");
	break;
	case SSize:
		document.images["btn_fontsize_s"].src =document.images["btn_fontsize_s"].src.replace("comm_fontchange03_n.gif","comm_fontchange03_o.gif");
		document.images["btn_fontsize_m"].src =document.images["btn_fontsize_m"].src.replace("comm_fontchange02_o.gif","comm_fontchange02_n.gif");
		document.images["btn_fontsize_l"].src =document.images["btn_fontsize_l"].src.replace("comm_fontchange01_o.gif","comm_fontchange01_n.gif");
	break;
	default:
		document.images["btn_fontsize_s"].src =document.images["btn_fontsize_s"].src.replace("comm_fontchange03_o.gif","comm_fontchange03_n.gif");
		document.images["btn_fontsize_m"].src =document.images["btn_fontsize_m"].src.replace("comm_fontchange02_n.gif","comm_fontchange02_o.gif");
		document.images["btn_fontsize_l"].src =document.images["btn_fontsize_l"].src.replace("comm_fontchange01_o.gif","comm_fontchange01_n.gif");
	break;
	}
  if (( document.layers )||(( appName.indexOf("Mac",0) != -1 ) && ( uaName.indexOf("MSIE 4.0",0) != -1 ))){
    return false;
  }
  else if( document.body ){
    document.body.style.fontSize = currentSize + fontSizeUnit;
  }
}
/********************/
function fsc( CMD ){
	
  if( CMD == "larger" ){
	  var newSize =LSize
    SetCookie( CookieName , newSize );
  }
  if( CMD == "smaller" ){
    if ( currentSize != ADJvalue ){
	    var newSize =SSize
      SetCookie( CookieName , newSize );
    }
    else{
      var newSize=Number(currentSize);
    }
  }
  if( CMD == "default" ){
    var newSize = initSize;
    DeleteCookie( CookieName );
  }
  currentSize = newSize;
 fscRef();
}
/********************/

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


/********************/
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='+CookiePath;
  }
}
com.addOnload(fscRef);