var agt=navigator.userAgent.toLowerCase();
var appVer = navigator.appVersion.toLowerCase();


// browser //////////////////////////////////////////////////////////////
var is_minor = parseFloat(appVer);
var is_major = parseInt(is_minor);
var is_opera = (agt.indexOf("opera") != -1);
var is_opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
var is_opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
var is_opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
var is_opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
var is_opera6 = (agt.indexOf("opera 6") != -1 || agt.indexOf("opera/6") != -1);
var is_opera7 = (agt.indexOf("opera 7") != -1 || agt.indexOf("opera/7") != -1);
var is_opera5up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4);
var is_opera6up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5);
var is_opera7up = (is_opera && !is_opera2 && !is_opera3 && !is_opera4 && !is_opera5 && !is_opera6);
var iePos = appVer.indexOf('msie');
if (iePos !=-1) {
	is_minor = parseFloat(appVer.substring(iePos+5,appVer.indexOf(';',iePos)))
	is_major = parseInt(is_minor);
}
var is_konq = false;
var kqPos  = agt.indexOf('konqueror');
if (kqPos !=-1) {
	is_konq = true;
	is_minor = parseFloat(agt.substring(kqPos+10,agt.indexOf(';',kqPos)));
	is_major = parseInt(is_minor);
}
var is_getElementById  = (document.getElementById) ? "true" : "false";
var is_getElementsByTagName = (document.getElementsByTagName) ? "true" : "false";
var is_documentElement = (document.documentElement) ? "true" : "false";
var is_safari = ((agt.indexOf('safari')!=-1)&&(agt.indexOf('mac')!=-1))?true:false;
var is_khtml = (is_safari || is_konq);	
var is_icab = (agt.indexOf('icab') != -1);
var is_omni = (agt.indexOf('omniweb') != -1);	
var is_gecko = ((!is_khtml)&&(navigator.product)&&(navigator.product.toLowerCase()=="gecko"))?true:false;
var is_gver = 0;
if (is_gecko) is_gver=navigator.productSub;	
var is_moz  = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) && (is_gecko) && ((navigator.vendor=="")||(navigator.vendor=="Mozilla")||(navigator.vendor=="Debian")));
var is_fb = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)	 && (is_gecko) && (navigator.vendor=="Firebird"));
var is_fx = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)	 && (is_gecko) && (navigator.vendor=="Firefox"));
if ((is_moz)||(is_fb)||(is_fx)) {
	var is_moz_ver = (navigator.vendorSub)?navigator.vendorSub:0;
	if(!(is_moz_ver)) {
		is_moz_ver = agt.indexOf('rv:');
		is_moz_ver = agt.substring(is_moz_ver+3);
		is_paren  = is_moz_ver.indexOf(')');
		is_moz_ver = is_moz_ver.substring(0,is_paren);
	}
	is_minor = is_moz_ver;
	is_major = parseInt(is_moz_ver);
}
var is_fb_ver = is_moz_ver;
var is_fx_ver = is_moz_ver;	
var is_nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1) && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1) && (!is_khtml) && (!(is_moz)) && (!is_fb) && (!is_fx));	
if ((navigator.vendor) && ((navigator.vendor=="Netscape6")||(navigator.vendor=="Netscape")) && (is_nav)) {
	is_major = parseInt(navigator.vendorSub);
	is_minor = parseFloat(navigator.vendorSub);
}
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && is_minor >= 4);
var is_navonly	 = (is_nav && ((agt.indexOf(";nav") != -1) || (agt.indexOf("; nav") != -1)) );
var is_nav6  = (is_nav && is_major==6);
var is_nav6up = (is_nav && is_minor >= 6);
var is_nav5  = (is_nav && is_major == 5 && !is_nav6);
var is_nav5up = (is_nav && is_minor >= 5);
var is_nav7  = (is_nav && is_major == 7);
var is_nav7up = (is_nav && is_minor >= 7);
var is_ie  = ((iePos!=-1) && (!is_opera) && (!is_khtml));
var is_ie3 = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && is_major == 4);
var is_ie4up = (is_ie && is_minor >= 4);
var is_ie5  = (is_ie && is_major == 5);
var is_ie5up = (is_ie && is_minor >= 5);
var is_ie5_5 = (is_ie && (agt.indexOf("msie 5.5") !=-1));
var is_ie5_5up =(is_ie && is_minor >= 5.5);
var is_ie6  = (is_ie && is_major == 6);
var is_ie6up = (is_ie && is_minor >= 6);
var is_aol  = (agt.indexOf("aol") != -1);
var is_aol3 = (is_aol && is_ie3);
var is_aol4 = (is_aol && is_ie4);
var is_aol5 = (agt.indexOf("aol 5") != -1);
var is_aol6 = (agt.indexOf("aol 6") != -1);
var is_aol7 = ((agt.indexOf("aol 7")!=-1) || (agt.indexOf("aol7")!=-1));
var is_aol8 = ((agt.indexOf("aol 8")!=-1) || (agt.indexOf("aol8")!=-1));


// platform //////////////////////////////////////////////////////////////
var is_win  = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));
var is_win16 = ((agt.indexOf("win16")!=-1) || (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("windows 16-bit")!=-1) );
var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) || (agt.indexOf("windows 16-bit")!=-1));
var is_winme = ((agt.indexOf("win 9x 4.90")!=-1));
var is_win2k = ((agt.indexOf("windows nt 5.0")!=-1) || (agt.indexOf("windows 2000")!=-1));
var is_winxp = ((agt.indexOf("windows nt 5.1")!=-1) || (agt.indexOf("windows xp")!=-1));
var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
var is_win32 = (is_win95 || is_winnt || is_win98 || ((is_major >= 4) && (navigator.platform == "Win32")) || (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));
var is_mac	= (agt.indexOf("mac")!=-1);
if (is_mac) { is_win = !is_mac; }
var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) || (agt.indexOf("68000")!=-1)));
var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) || (agt.indexOf("powerpc")!=-1)));


// css //////////////////////////////////////////////////////////////
if(is_mac){
	document.write('<link rel="alternate stylesheet" type="text/css" href="http://www.aab.co.jp/shared/css/fontsize_large.css" title="large">');
	document.write('<link rel="stylesheet" type="text/css" href="http://www.aab.co.jp/shared/css/fontsize_medium.css" title="medium">');
	}else{
	document.write('<link rel="alternate stylesheet" type="text/css" href="http://www.aab.co.jp/shared/css/fontsize_large.css" title="large">');
	document.write('<link rel="stylesheet" type="text/css" href="http://www.aab.co.jp/shared/css/fontsize_medium.css" title="medium">');
}

// error //////////////////////////////////////////////////////////////
//if(is_icab){location.href ="/share/error/index.html";}


// page anchor  //////////////////////////////////////////////////////////////
function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}