/* 書式 : mySetCookie(クッキー名,値,有効期限日数) */
/* 戻り値 : なし(void)                            */
function mySetCookie(myCookie,myValue,myDay){
   myExp = new Date();
   myExp.setTime(myExp.getTime()+(myDay*24*60*60*1000));
   myItem = "@" + myCookie + "=" + escape(myValue) + ";";
   myExpires = "expires="+myExp.toGMTString();
   myPath = "path=/;";
   document.cookie =  myItem + myPath + myExpires;
}

/* 書式 : myGetCookie(クッキー名)                 */
/* 戻り値 : 値(string)  null:該当なし             */
function myGetCookie(myCookie){
   myCookie = "@" + myCookie + "=";
   myValue = null;
   myStr = document.cookie + ";" ;
   myOfst = myStr.indexOf(myCookie);
   if (myOfst != -1){
      myStart = myOfst + myCookie.length;
      myEnd   = myStr.indexOf(";" , myStart);
      myValue = unescape(myStr.substring(myStart,myEnd));
   }
   return myValue;
}

// クッキー設定→リロード
function changeSize(newSize) {
	mySetCookie("FONT_SIZE",newSize,365);
	window.location.reload();
}


// フォントサイズ読込→CSS再設定
myFontSize = myGetCookie("FONT_SIZE");
if ( myFontSize == null ) {
	myFontSize = 0;
}
if ( myFontSize == -1 ) {
	document.write("<style type='text/css'>\n");
	document.write("body,a,tr,td { font-size: 0.85em;}\n");
	document.write("</style>\n");
}
if ( myFontSize == 1 ) {
	document.write("<style type='text/css'>\n");
	document.write("body,a,tr,td { font-size: 1.15em;}\n");
	document.write("</style>\n");
}


// 文字ボタン
function print_font_btn() {

	document.write("<span class='no_print'>");
	document.write("<img src='images/btn_fontsize.gif' border='0'>");

	if ( myFontSize == -1 ) {
		document.write("<img src='images/btn_s.gif' border='0'>");
	} else {
		document.write("<a href='javascript:changeSize(-1);'><img src='images/btn_s.gif' border='0'></a>");
	}

	
	if ( myFontSize == 0 ) {
		document.write("<img src='images/btn_m.gif' border='0'>");
	} else {
		document.write("<a href='javascript:changeSize(0);'><img src='images/btn_m.gif' border='0'></a>");
	}



	if ( myFontSize == 1 ) {
		document.write("<img src='images/btn_l.gif' border='0'>");
	} else {
		document.write("<a href='javascript:changeSize(1);'><img src='images/btn_l.gif' border='0'></a></span>");
	}


}

// 印刷ボタン描画
function print_btn() {

	document.write("<span class='no_print'>");
	document.write("<a href='javascript:window.print();'><img src='images/btn_print.gif' border='0'></a>");



}