var sUserAgent = navigator.userAgent;
var fAppVersion = parseFloat(navigator.appVersion);

function compareVersions(sVersion1, sVersion2) {

    var arrVersion1 = sVersion1.split(".");
    var arrVersion2 = sVersion2.split(".");
    var i = 0;

    if (arrVersion1.length > arrVersion2.length) {
        for (i = 0; i < arrVersion1.length - arrVersion2.length; i++) {
            arrVersion2.push("0");
        }
    } else if (arrVersion1.length < arrVersion2.length) {
        for (i = 0; i < arrVersion2.length - arrVersion1.length; i++) {
            arrVersion1.push("0");
        }
    }

    for (i = 0; i < arrVersion1.length; i++) {

        if (arrVersion1[i] < arrVersion2[i]) {
            return -1;
        } else if (arrVersion1[i] > arrVersion2[i]) {
            return 1;
        }
    }

    return 0;

}

var isFF = sUserAgent.indexOf("Firefox") > -1;
var isMinFF1_0 = false;
var isMinFF1_5 = false;
var isMinFF2_0 = false;

if (isFF) {
    var fFFVersion;
    var reFFVersion = new RegExp("Firefox/(\\d+\\.\\d+)");
    reFFVersion.test(sUserAgent);
    fFFVersion = parseFloat(RegExp["$1"]);

    isMinFF1_0 = fFFVersion >= 1.0;
    isMinFF1_5 = fFFVersion >= 1.5;
    isMinFF2_0 = fFFVersion >= 2.0;
}

var isOpera = sUserAgent.indexOf("Opera") > -1;
var isMinOpera4 = false;
var isMinOpera5 = false;
var isMinOpera6 = false;
var isMinOpera7 = false;
var isMinOpera7_5 = false;

if (isOpera) {
    var fOperaVersion;
    if (navigator.appName == "Opera") {
        fOperaVersion = fAppVersion;
    } else {
        var reOperaVersion = new RegExp("Opera (\\d+\\.\\d+)");
        reOperaVersion.test(sUserAgent);
        fOperaVersion = parseFloat(RegExp["$1"]);
    }

    isMinOpera4 = fOperaVersion >= 4;
    isMinOpera5 = fOperaVersion >= 5;
    isMinOpera6 = fOperaVersion >= 6;
    isMinOpera7 = fOperaVersion >= 7;
    isMinOpera7_5 = fOperaVersion >= 7.5;
}

var isKHTML = sUserAgent.indexOf("KHTML") > -1
              || sUserAgent.indexOf("Konqueror") > -1
              || sUserAgent.indexOf("AppleWebKit") > -1;

var isMinSafari1 = false;
var isMinSafari1_2 = false;
var isMinSafari1_3 = false;
var isMinSafari2 = false;
var isMinKonq2_2 = false;
var isMinKonq3 = false;
var isMinKonq3_1 = false;
var isMinKonq3_2 = false;
var isSafari = false;
var isKonq = false;

if (isKHTML) {
    isSafari = sUserAgent.indexOf("AppleWebKit") > -1;
    isKonq = sUserAgent.indexOf("Konqueror") > -1;

    if (isSafari) {
        var reAppleWebKit = new RegExp("AppleWebKit\\/(\\d+(?:\\.\\d*)?)");
        reAppleWebKit.test(sUserAgent);
        var fAppleWebKitVersion = parseFloat(RegExp["$1"]);

        isMinSafari1 = fAppleWebKitVersion >= 85;
        isMinSafari1_2 = fAppleWebKitVersion >= 124;
        isMinSafari1_3 = fAppleWebKitVersion >= 312;
        isMinSafari2 = fAppleWebKitVersion >= 412;
    } else if (isKonq) {

        var reKonq = new RegExp("Konqueror\\/(\\d+(?:\\.\\d+(?:\\.\\d)?)?)");
        reKonq.test(sUserAgent);
        isMinKonq2_2 = compareVersions(RegExp["$1"], "2.2") >= 0;
        isMinKonq3 = compareVersions(RegExp["$1"], "3.0") >= 0;
        isMinKonq3_1 = compareVersions(RegExp["$1"], "3.1") >= 0;
        isMinKonq3_2 = compareVersions(RegExp["$1"], "3.2") >= 0;
    }

}

var isIE = sUserAgent.indexOf("compatible") > -1
           && sUserAgent.indexOf("MSIE") > -1
           && !isOpera
           && (sUserAgent.indexOf("Netscape") == -1);

var isMinIE4 = false;
var isMinIE5 = false;
var isMinIE5_5 = false;
var isMinIE6 = false;
var isMinIE7 = false;

if (isIE) {
    var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
    reIE.test(sUserAgent);
    var fIEVersion = parseFloat(RegExp["$1"]);

    isMinIE4 = fIEVersion >= 4;
    isMinIE5 = fIEVersion >= 5;
    isMinIE5_5 = fIEVersion >= 5.5;
    isMinIE6 = fIEVersion >= 6.0;
    isMinIE7 = fIEVersion >= 7.0;
}

var isMoz = sUserAgent.indexOf("Gecko") > -1
            && !isKHTML;

var isMinMoz1 = false;
var isMinMoz1_4 = false;
var isMinMoz1_5 = false;

if (isMoz) {
    var reMoz = new RegExp("rv:(\\d+\\.\\d+(?:\\.\\d+)?)");
    reMoz.test(sUserAgent);
    isMinMoz1 = compareVersions(RegExp["$1"], "1.0") >= 0;
    isMinMoz1_4 = compareVersions(RegExp["$1"], "1.4") >= 0;
    isMinMoz1_5 = compareVersions(RegExp["$1"], "1.5") >= 0;
}

var isNS4 = !isIE && !isOpera && !isMoz && !isKHTML
            && (sUserAgent.indexOf("Mozilla") == 0)
            && (navigator.appName == "Netscape")
            && (fAppVersion >= 4.0 && fAppVersion < 5.0);

var isMinNS4 = false;
var isMinNS4_5 = false;
var isMinNS4_7 = false;
var isMinNS4_8 = false;

if (isNS4) {
    isMinNS4 = true;
    isMinNS4_5 = fAppVersion >= 4.5;
    isMinNS4_7 = fAppVersion >= 4.7;
    isMinNS4_8 = fAppVersion >= 4.8;
}

var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC")
            || (navigator.platform == "Macintosh")
            || (navigator.platform == "MacIntel");

var isUnix = (navigator.platform == "X11") && !isWin && !isMac;

var isWinNT4 = false;
var isWin95 = false;
var isWin98 = false;
var isWinME = false;
var isWin2K = false;
var isWinXP = false;
var isWinVista = false;
var isMac68K = false;
var isMacPPC = false;
var isMacIntel = false;
var isSunOS = false;
var isMinSunOS4 = false;
var isMinSunOS5 = false;
var isMinSunOS5_5 = false;

var isMinWin98 = false;
var isMinWinME = false;
var isMinWin2K = false;
var isMinWinXP = false;
var isMinWinVista = false;

if (isWin) {
    isWin95 = sUserAgent.indexOf("Win95") > -1
              || sUserAgent.indexOf("Windows 95") > -1;
    isWin98 = sUserAgent.indexOf("Win98") > -1
              || sUserAgent.indexOf("Windows 98") > -1;
    isWinME = sUserAgent.indexOf("Win 9x 4.90") > -1
              || sUserAgent.indexOf("Windows ME") > -1;
    isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1
              || sUserAgent.indexOf("Windows 2000") > -1;
    isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1
              || sUserAgent.indexOf("Windows XP") > -1;
    isWinVista = sUserAgent.indexOf("Windows NT 6.0") > -1
              || sUserAgent.indexOf("Windows Vista") > -1; //this is a guess since I've not seen this documented
    isWinNT4 = sUserAgent.indexOf("WinNT") > -1
              || sUserAgent.indexOf("Windows NT") > -1
              || sUserAgent.indexOf("WinNT4.0") > -1
              || sUserAgent.indexOf("Windows NT 4.0") > -1
              && (!isWinME && !isWin2K && !isWinXP && !isWinVista);


    if (isWinVista) {
        isMinWin98 = true;
        isMinWinME = true;
        isMinWin2K = true;
        isMinWinXP = true;
        isMinWinVista = true;
    }
    else if (isWinXP) {
        isMinWin98 = true;
        isMinWinME = true;
        isMinWin2K = true;
        isMinWinXP = true;
    }
    else if (isWin2K) {
        isMinWin98 = true;
        isMinWinME = true;
        isMinWin2K = true;
    }
    else if (isWinME) {
        isMinWin98 = true;
        isMinWinME = true;
    }
    else if (isWin98) {
        isMinWin98 = true;
    }

}

if (isMac) {
    isMac68K = sUserAgent.indexOf("Mac_68000") > -1
               || sUserAgent.indexOf("68K") > -1;
    isMacPPC = sUserAgent.indexOf("Mac_PowerPC") > -1
               || sUserAgent.indexOf("PPC") > -1;
    isMacIntel = sUserAgent.indexOf("Mac_Intel") > -1
               || sUserAgent.indexOf("Intel") > -1;
}

if (isUnix) {
    isSunOS = sUserAgent.indexOf("SunOS") > -1;

    if (isSunOS) {
        var reSunOS = new RegExp("SunOS (\\d+\\.\\d+(?:\\.\\d+)?)");
        reSunOS.test(sUserAgent);
        isMinSunOS4 = compareVersions(RegExp["$1"], "4.0") >= 0;
        isMinSunOS5 = compareVersions(RegExp["$1"], "5.0") >= 0;
        isMinSunOS5_5 = compareVersions(RegExp["$1"], "5.5") >= 0;
    }
}





//var Global = {

//    Containers: function() {

//        this.activeNav = null;
//        this.currentPage = null;
//    },

//    setCookie: function(cName, value) {
//        //alert("name: " + cName + " value: " + value + " days: " + days)
//        //if (!days) days = 1; // default to 1 day if empty
//        var expdate = new Date();
//        //expdate.setTime(expdate.getTime() + days*24*60*60*1000);
//        expdate.setFullYear(2035);  // Safari doesn't seem to accept dates after 2038
//        document.cookie = cName + "=" + escape(value) + "; expires=" + expdate.toGMTString() + "; path=/";
//        //document.cookie = cName + "=" + escape(value); 
//    },

//    getCookie: function(name) {
//        var dc = document.cookie;
//        var cname = name + "=";
//        var clen = dc.length;
//        var cbegin = 0;
//        while (cbegin < clen) {
//            var vbegin = cbegin + cname.length;
//            if (dc.substring(cbegin, vbegin) == cname) {
//                var vend = dc.indexOf(";", vbegin);
//                if (vend == -1) vend = clen;
//                return unescape(dc.substring(vbegin, vend));
//            }
//            cbegin = dc.indexOf(" ", cbegin) + 1;
//            if (cbegin == 0) break;
//        }
//        return null;
//    },

//    addLoadEvent: function(func) {
//        var oldonload = window.onload;
//        if (typeof window.onload != 'function') {
//            window.onload = func;
//        }
//        else {

//            window.onload = function() {
//                oldonload();
//                func();
//            }
//        }
//    },

//    addUnLoadEvent: function(func) {
//        var oldonunload = window.onunload;

//        if (typeof window.onunload != 'function') {
//            window.onunload = func;
//        }
//        else {
//            window.onunload = function() {
//                oldonunload();
//                func();
//            }
//        }
//    }
//};

//function setNav(NavId, SubNavId) {
//    if (isSafari) {
//        Global.Containers.activeNav = eval(NavId)
//        Global.Containers.activeSubNav = eval(SubNavId)

//    } else {
//        Global.Containers.activeNav = $(NavId)
//        Global.Containers.activeSubNav = $(SubNavId)
//    }
//}
//    function fixPng(img) {

//        try {
//            var arVersion = navigator.appVersion.split("MSIE");
//            var version = parseFloat(arVersion[1]);
//            if ((version >= 5.5) && (version < 7) && (document.body.filters)) {
//                var pngImage = $(img);
//                var visible = pngImage.visible();
//                if (!visible) pngImage.show();
//                var width = pngImage.getWidth();
//                var height = pngImage.getHeight();
//                if (!visible) pngImage.hide();
//                var imgId = pngImage.id ? "id='" + pngImage.id + "' " : "";
//                var imgClass = pngImage.className ? "class='" + pngImage.className + "' " : "";
//                var imgTitle = pngImage.title ? "title='" + pngImage.title + "' " : "title='" + pngImage.alt + "' ";
//                var imgStyle = "display:inline-block;" + pngImage.style.cssText;
//                var replacement = imgId + imgClass + imgTitle
//                                + " style=\"" + "width:" + width
//                                + "px; height:" + height
//                                + "px;" + imgStyle + ";"
//                                + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
//                                + "(src=\'" + myImage.src + "\', sizingMethod='scale');\">";
//                pngImage.outerHTML = replacement;
//            }
//        } catch (e) {

//        }
//    };


function fixPng(img) {

    try {
        var arVersion = navigator.appVersion.split("MSIE");
        //alert(arVersion)
        var version = parseFloat(arVersion[1]);
        if ((version >= 5.5) && (version < 7) && (document.body.filters)) {
            var pngImage = $(img);
            var visible = pngImage.visible();
            if (!visible) pngImage.show();
            var width = pngImage.getWidth();
            var height = pngImage.getHeight();

            if (!visible) pngImage.hide();

            var imgId = pngImage.id ? "id='" + pngImage.id + "' " : "";
            //alert(" pngImage.innerHTML:" +  pngImage.outerHTML + " arVersion : " +arVersion + " pngImage: " + pngImage + " width: " + width + " height: " + height+ " : " )
            var imgClass = pngImage.className ? "class='" + pngImage.className + "' " : "";
            var imgTitle = pngImage.title ? "title='" + pngImage.title + "' " : "title='" + pngImage.alt + "' ";
            var imgStyle = "display:inline-block;" + pngImage.style.cssText;
            //alert(pngImage.src)
            //alert("imgClass: " +imgClass  + " imgTitle:" +imgTitle + " imgStyle:" +imgStyle + "myImage.src:" + pngImage.src) 
            var replacement = "<div " + imgId + imgClass + imgTitle
                                + " style=\"" + "width:" + width
                                + "px; height:" + height
                                + "px;" + imgStyle + ";"
                                + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
                                + "(src=\'" + pngImage.src + "\', sizingMethod='scale');\">";
            //pngImage.outerHTML = replacement;
            //alert(replacement)
            var parent = pngImage.ancestors()[0];
            parent.innerHTML = replacement;

            //alert(" pngImage.innerHTML:" +  pngImage.outerHTML + " arVersion : " +arVersion + " pngImage: " + pngImage + " width: " + width + " height: " + height+ " : " )
        }
    } catch (e) {

    }
};

//Event.observe(window, 'load', function() { $$('img.png').each(function(png) { fixPng(png) }) });

//function backToProducts() {

//    window.location = '/products.aspx';
//}




//function respondToClick(event) {
//    var element = event.element();
//    element.src = "/images/ui/navbuttons/" + element.id + "On.jpg";
//    event.stop(event);
//}



//function getQueryKeyValue(key, query) {
//    query = query || location.href;
//    var tmpIndex = query.indexOf('?');
//    if (tmpIndex != -1) {
//        query = query.slice(tmpIndex + 1);
//        query = query.split('&');
//        for (var i = 0; i < query.length; i++) {
//            var keyLen = query[i].indexOf('=');
//            if (keyLen > 0) {
//                var curK = query[i].substring(0, keyLen);
//                if (curK == key) return query[i].substring(keyLen + 1);
//            }
//        }
//        return null;
//    } else {
//        return null;
//    }
//}


//if (isMoz && isMac) {
//    document.write("<link REL='STYLESHEET' TYPE='text/css' HREF='/css/ffMac.css' >");
//}
//else if (isMoz && isWin) {
//    document.write("<link REL='STYLESHEET' TYPE='text/css' HREF='/css/ffPC.css' >");
//}