// JavaScript Document
var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;
var isSafari = (navigator.userAgent.indexOf("Safari") != -1) ? true : false;
var isFirefox = (navigator.userAgent.indexOf("Mozilla") != -1) ? true : false;