//ブラウザ判定
function BrowserJudge(){

  var an = navigator.appName;
  var ua = navigator.userAgent;

  //Netscape
  _NN = (an=="Netscape");

  //Netscape6 や Mozilla
  _GC = (ua.indexOf("Gecko")!=-1 && (ua.indexOf("Safari")==-1));

  //Internet Explorer
  _IE = (an=="Microsoft Internet Explorer");
  if( _IE ){
    _IE_REG = (document.compatMode != "CSS1Compat");
  }

  //Oprea
  _OP = (ua.indexOf('Opera') != -1);

  //Oprea6のみ
  var _OP6 = (ua.search('Opera(\ |\/)6') != -1);

  //Oprea7のみ
  var _OP7 = (ua.search('Opera(\ |\/)7') != -1);

  //Safariの場合
  _SF = (ua.indexOf("Safari")!=-1);

  //DreamPassport
  //var dp = (ua.indexOf("DreamPassport")!=-1);

  //PS2 NetFront
  //var ps2nf = (ua.indexOf("AveFront")!=-1);

}

var _IE     = 0; //Internet Explorer
var _IE_REG = 0; //IEの互換モード(IE5以下とIE6の互換モード)
var _OP     = 0; //Opera
var _NN     = 0; //Netscape Navigater
var _GC     = 0; //Gecko(Firefox ,Moziila etc...)
var _SF     = 0; //Safari
var _OT     = 0; //Others

BrowserJudge();